Journal of Energy Chemistry最新文献_第4页

Tandem electrocatalytic-catalytic conversion of nitrate and waste polylactic acid to alanine 串联电催化-硝酸和废聚乳酸催化转化丙氨酸

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2025-05-08 DOI: 10.1016/j.jechem.2025.04.067

Xue Teng , Shaozhen Liang , Kai Shi , Lisong Chen , Jianlin Shi

{"title":"Tandem electrocatalytic-catalytic conversion of nitrate and waste polylactic acid to alanine","authors":"Xue Teng , Shaozhen Liang , Kai Shi , Lisong Chen , Jianlin Shi","doi":"10.1016/j.jechem.2025.04.067","DOIUrl":"10.1016/j.jechem.2025.04.067","url":null,"abstract":"<div><div>Herein, a tandem electrocatalytic-catalytic method is employed to produce valuable alanine from nitrate and waste polylactic acid (PLA). Initially, two strategies are proposed to enhance the performance of electrocatalytic NO<sub>3</sub><sup>−</sup> reduction reaction (NO<sub>3</sub><sup>−</sup>RR): optimizing NO<sub>3</sub><sup>−</sup> adsorption and accelerating water dissociation by modulating the cathode electrocatalyst. Fe-regulated Co nanosheets (Fe<sub>0.33</sub>-Co(OH)<sub>2</sub> NSs) have been developed as an efficient electrocatalyst, which demonstrate a remarkable Faradaic efficiency (FE) of 98.2%, with a corresponding yield rate of 10.7 mg h<sup>−1</sup> cm<sup>−2</sup> for NO<sub>3</sub><sup>−</sup>RR to NH<sub>3</sub> at −0.1 V vs. RHE. Additionally, ∼95% FEs of NH<sub>3</sub> at −200 mA cm<sup>−2</sup> have been maintained for >430 h in the alkaline solution. Subsequently, in situ technologies have been utilized to elucidate the NO<sub>3</sub><sup>−</sup>RR pathways, the structure transformation of the electrocatalysts, and the effects of Fe-induced work function reduction and electron enrichment at Co sites on electrocatalytic activity. Finally, alanine is synthesized by using PLA and the generated NH<sub>3</sub> as the raw reactants on the Ru/TiO<sub>2</sub> catalyst, achieving maximum yield and selectivity of 81.3% and 91.8%, respectively, which provides a novel approach to utilize the nitrogen resource and mitigate plastic pollution.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"108 ","pages":"Pages 694-702"},"PeriodicalIF":13.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced stability of aqueous aluminum metal batteries via CeCl3-mediated water shielding and interfacial modification 通过cecl3介导的水屏蔽和界面改性提高水性铝金属电池的稳定性

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2025-05-08 DOI: 10.1016/j.jechem.2025.04.066

Hao Zou , Shuanghong Xia , Shi Tang, Yunong Qin, Ling Li, Wenming Zhang

{"title":"Enhanced stability of aqueous aluminum metal batteries via CeCl3-mediated water shielding and interfacial modification","authors":"Hao Zou , Shuanghong Xia , Shi Tang, Yunong Qin, Ling Li, Wenming Zhang","doi":"10.1016/j.jechem.2025.04.066","DOIUrl":"10.1016/j.jechem.2025.04.066","url":null,"abstract":"<div><div>The stability and safety of aqueous aluminum metal batteries (AAMBs) have garnered an enormous amount of attention. However, severe corrosion during cycling and inefficient deposition behavior at the Al anode hinder their application. In this paper, CeCl<sub>3</sub> was selected as a water inhibition additive to achieve active water confinement, which dramatically improved the corrosion behavior and prolonged the cycle life of the Al electrode. A combination of spectroscopic characterization and computational analysis showed that Cl<sup>−</sup> breaks hydrogen bonds in the electrolyte and has higher adsorption energy on Al, thus inhibiting water-induced corrosion. Meanwhile, Ce<sup>3+</sup> has a stronger affinity for Al than H<sub>2</sub>O, thus promoting the formation of the surface protective layer. Cl<sup>−</sup> in the modified electrolyte results in less hydration around Al<sup>3+</sup>. Due to the excellent water inhibition effect of CeCl<sub>3</sub>, the corrosion phenomenon of Al electrodes was significantly improved, and the dominant growth of the Al (111) crystal plane was achieved. Al//Prussian blue analogue (PBA) full cells with CeCl<sub>3</sub> exhibit significantly improved voltage polarization (0.342 V), cycle life (550 cycles), discharge specific capacity (112 mAh g<sup>−1</sup>), and self-discharge behavior (87.97%). The Ce<sup>3+</sup> in the additive is also able to be co-intercalated into the PBA with Al<sup>3+</sup>, improving the stability of the PBA. However, the conductivity reduction of this strategy at higher concentrations needs to be further addressed. Compared with organic electrolyte and molten salt systems, the cycle life of the aqueous electrolyte in this work still falls short. This modification method paves the way for further development of efficient AAMBs.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"108 ","pages":"Pages 624-634"},"PeriodicalIF":13.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing hydrate formation and distribution in the presence of amino acids for CO2 marine sequestration 在氨基酸存在的情况下，优化水合物的形成和分布，用于二氧化碳的海洋封存

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2025-05-08 DOI: 10.1016/j.jechem.2025.04.064

Yingying Liu, Lintao Sun, Jiani Ren, Tao Yu, Lanlan Jiang, Yongchen Song

{"title":"Optimizing hydrate formation and distribution in the presence of amino acids for CO2 marine sequestration","authors":"Yingying Liu, Lintao Sun, Jiani Ren, Tao Yu, Lanlan Jiang, Yongchen Song","doi":"10.1016/j.jechem.2025.04.064","DOIUrl":"10.1016/j.jechem.2025.04.064","url":null,"abstract":"<div><div>Carbon dioxide (CO<sub>2</sub>) marine sequestration by hydrate method is considered as one of the options to effectively achieve carbon reduction. However, the slow rate of hydrate formation becomes a major limiting factor. In view of the gas-water mass transfer problem which is the main obstacle, this paper explored the amphiphilic amino acids to promote the formation of CO<sub>2</sub> hydrate and used low-field nuclear magnetic resonance (LNMR) to conduct an innovative study on its kinetics and spatiotemporal distribution. By comparing the promotion performance of L-methionine (L-met), L-cysteine (L-cys), and L-valine (L-val), the comprehensive kinetic promotion ability of L-met was the highest, reducing the induction time by 60.0%, achieving the maximum water conversion of about 57.0% within only 1 h, and reaching a final CO<sub>2</sub> storage efficiency of 84.6%. LNMR results showed that hydrates were preferentially formed in large and medium pores in the reservoir region. Interestingly, we found that the combined effect of hydrophilic groups and the hydrophobic side chain of L-met not only promoted the rearrangement of water molecules and provided more nucleation sites, but also created a localized CO<sub>2</sub> supersaturated environment and facilitated gas-water redistribution. Meanwhile, L-met promoted the formation of a hydrate porous structure to ensure the continuous formation of hydrates. This study innovatively explored CO<sub>2</sub> hydrate formation behavior in amphiphilic amino acids and laid a theoretical foundation for the realization of CO<sub>2</sub> marine sequestration by hydrate method.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"108 ","pages":"Pages 635-644"},"PeriodicalIF":13.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144089208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facile scalable fabrication of triazine-based flexible covalent organic framework fiber film with multifunction at room temperature 三嗪基多功能柔性共价有机骨架纤维薄膜的室温可伸缩制备

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2025-05-03 DOI: 10.1016/j.jechem.2025.04.061

Huimin Yan , Yan Kou , Jiao Wang , Shihui Zhang , Nan Yin , Wenhao Cui , Quan Shi

{"title":"Facile scalable fabrication of triazine-based flexible covalent organic framework fiber film with multifunction at room temperature","authors":"Huimin Yan , Yan Kou , Jiao Wang , Shihui Zhang , Nan Yin , Wenhao Cui , Quan Shi","doi":"10.1016/j.jechem.2025.04.061","DOIUrl":"10.1016/j.jechem.2025.04.061","url":null,"abstract":"<div><div>Flexible covalent organic framework (COF) film has drawn much attention as a promising functional material due to their unique molecular structure and self-supporting property. However, the traditional solvothermal method of synthesizing flexible COF film is usually complicated, long-term duration and energy-consuming, making it unsuitable for scalable preparation. To address these limitations, a new method combining electrospinning and sacrificial template is proposed to quickly produce triazine-based COF fiber films at room temperature. The method is easy to operate and has a short reaction time (minimum 0.5 h) without dehydration and deoxygenation processes at room temperature, making it suitable for large-scale production (20 cm × 30 cm). Different from the unprocessable of COF powder, COF films not only have good flexibility and mechanical properties, but also can be patterned with multiple functions to adapt to various application scenarios. Moreover, the functionality of triazine-structured COF is retained, enabling the use of the films in energy conversion and storage applications. Triazine-based COFs naturally have scalable conjugated structure, thus showing potential photocatalytic probability. Furthermore, the large pore structure of COF films enables loading of phase change materials endowing comprehensive properties of thermal management and flame retardance. This study proposes a strategy for the rapid synthesis of COF fiber films at room temperature and paves the way for multifunctional and high-performance COF based materials.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"108 ","pages":"Pages 410-416"},"PeriodicalIF":13.1,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient and economic H2O2 electrosynthesis via two-electron oxygen reduction reaction enabled by dynamically reconstructed Mn(*OH)-N3O-C motif and coupled alcohol oxidation 动态重构Mn(*OH)- n30 - c基序和偶联醇氧化实现双电子氧还原反应高效经济的H2O2电合成

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2025-05-02 DOI: 10.1016/j.jechem.2025.04.058

Wei Liu , Rui Chen , Zhiyuan Sang , Min Zheng , Zhenxin Li , Jiahuan Nie , Qiao Jiang , Lichang Yin , Feng Hou , Ji Liang

{"title":"Efficient and economic H2O2 electrosynthesis via two-electron oxygen reduction reaction enabled by dynamically reconstructed Mn(*OH)-N3O-C motif and coupled alcohol oxidation","authors":"Wei Liu , Rui Chen , Zhiyuan Sang , Min Zheng , Zhenxin Li , Jiahuan Nie , Qiao Jiang , Lichang Yin , Feng Hou , Ji Liang","doi":"10.1016/j.jechem.2025.04.058","DOIUrl":"10.1016/j.jechem.2025.04.058","url":null,"abstract":"<div><div>Hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) electrosynthesis via two-electron oxygen reduction reaction (2e<sup>−</sup> ORR) is a promising alternative for the energy-intensive anthraquinone process. However, the instability of the catalytic metal sites in the state-of-the-art metal single-atom catalysts (M-SACs) hinders their further industrial applications, and the high potential and valueless oxygen product of the conventional anodic oxygen evolution reaction (OER) further limit the economic efficiency of this technology. To address this, a dynamically local structure reconstruction strategy is proposed to in situ transfer the active sites from unstable metal sites to the stable surrounding carbon sites for efficient and durable 2e<sup>−</sup> ORR electrocatalysis. For the as-designed Mn-N<sub>3</sub>O-C catalyst, by reconstructing Mn sites into Mn(*OH), the Mn sites were passivated and carbon sites adjacent to the O atom were verified to be the actual active sites by in situ characterization and theoretical calculation. Consequently, Mn-N<sub>3</sub>O-C exhibited > 80% Faradaic efficiency and superior long-term durability over 100 h for H<sub>2</sub>O<sub>2</sub> electrosynthesis at ∼120 mA cm<sup>−2</sup>. In addition, coupling anodic ethylene glycol oxidation reaction (EGOR) further improves the efficiency and economic viability of the H<sub>2</sub>O<sub>2</sub> electrosynthesis system. This two-pronged strategy thus opens up a new opportunity for the development of stable H<sub>2</sub>O<sub>2</sub> electrosynthesis with low energy consumption and superior economic performance.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"108 ","pages":"Pages 675-684"},"PeriodicalIF":13.1,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144106104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coupling biphasic homojunction interface and oxygen vacancies for enhanced polysulfide capture and catalytic conversion in Li-S batteries 耦合双相均结界面和氧空位增强Li-S电池中多硫化物捕获和催化转化

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2025-05-02 DOI: 10.1016/j.jechem.2025.04.062

Hao Wang , Shidi Huang , Zhe Cui , Jinqi Zhu , Rujia Zou

{"title":"Coupling biphasic homojunction interface and oxygen vacancies for enhanced polysulfide capture and catalytic conversion in Li-S batteries","authors":"Hao Wang , Shidi Huang , Zhe Cui , Jinqi Zhu , Rujia Zou","doi":"10.1016/j.jechem.2025.04.062","DOIUrl":"10.1016/j.jechem.2025.04.062","url":null,"abstract":"<div><div>Lithium-sulfur (Li-S) batteries promise high energy density but suffer from low conductivity, polysulfide shuttling, and sluggish conversion kinetics. The construction of heterointerfaces is an effective strategy for enhancing both polysulfide adsorption and conversion; however, the poor lattice compatibility in the heterointerface formed by different materials hinders interfacial charge transfer. In response to these challenges, herein, a biphasic homojunction of TiO<sub>2</sub> enriched with oxygen vacancies and decorated with nitrogen-doped carbon nanotubes (B-TiO<sub>2−</sub><em><sub>x</sub></em>@NCNT) was designed to simultaneously enhance adsorption ability and catalytic activity. This homojunction interface composed of rutile (110) and anatase (101) plane exhibits excellent compatibility, and density functional theory (DFT) calculations reveal that this biphasic interface possesses a much higher binding energy to polysulfides compared to single-phase TiO<sub>2</sub>. Additionally, NCNTs are in situ grown on both interior and exterior surfaces of the hollow TiO<sub>2</sub> nanospheres, facilitating rapid electron transfer for the encapsulated sulfur. The homojunction interface synergistically leverages the oxygen vacancies and highly conductive NCNTs to enhance the bidirectional catalytic activity for polysulfide conversion. Therefore, in this multifunctional sulfur-host, polysulfides are first strongly adsorbed at the homojunction interfaces and subsequently undergo smooth conversion, nucleation, and decomposition, completing a rapid sulfur redox cycle. The assembled Li-S battery delivered a high specific capacity of 1234.3 mAh g<sup>−1</sup> at 0.2 C, long cycling stability for over 1000 cycles at 5 C with a low decay rate of 0.035%, and exciting areal capacity at a high sulfur loading of 5.6 mg cm<sup>−2</sup> for 200 cycles.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"108 ","pages":"Pages 485-494"},"PeriodicalIF":13.1,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of supramolecular metal-halogen bonded organic frameworks for efficient solar energy conversion 用于高效太阳能转换的超分子金属-卤素键合有机框架的构建

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2025-05-02 DOI: 10.1016/j.jechem.2025.04.056

Hongqiang Dong, Jiahao Zhao, Ya Lu, Zhennan Tian, Shumeng Wang, Xuguan Bai, Guanfei Gong, Jike Wang, Lu Wang, Shigui Chen

{"title":"Construction of supramolecular metal-halogen bonded organic frameworks for efficient solar energy conversion","authors":"Hongqiang Dong, Jiahao Zhao, Ya Lu, Zhennan Tian, Shumeng Wang, Xuguan Bai, Guanfei Gong, Jike Wang, Lu Wang, Shigui Chen","doi":"10.1016/j.jechem.2025.04.056","DOIUrl":"10.1016/j.jechem.2025.04.056","url":null,"abstract":"<div><div>Efficient conversion and synergistic solar energy utilization are critical for advancing low-carbon and sustainable development. In this study, two Pt(II)-based metal/halogen-bonded organic frameworks (MXOF-Ben and MXOF-Anth) were designed to enhance photoconversion efficiency and enable multifunctional integration. The ligand L-terpyr is formed by coupling tripyridine with diphenylamine dipyridine, in which the tripyridine effectively acts as a metal-ligand to lower the band gap and promote non-radiative leaps, thereby enhancing the photoconversion ability. Meanwhile, diphenylamine dipyridine serves as a [N⋯I<sup>+</sup>⋯N] halogen-bonding acceptor, imparting superhydrophilicity to the materials and increasing carrier density, further improving photocatalytic performance. Experimental results demonstrate that these two MXOFs achieve impressive interfacial water evaporation efficiencies of up to 87.8% and 94.0%, respectively. Additionally, the materials exhibit excellent performance in photothermal power generation and photocatalysis of H<sub>2</sub>O<sub>2</sub>. Notably, the MXOFs also deliver strong overall performance in integrated systems combining interfacial water evaporation with photothermal power generation or photocatalysis, underscoring their exceptional photoconversion efficiency and multifunctional potential. This work introduces a novel strategy by incorporating metal-ligand and halogen bonds, offering a pathway to enhance photoconversion efficiency and develop versatile materials for advanced solar energy applications, thereby fostering the progress of high-efficiency solar energy conversion and multifunctional organic materials.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"108 ","pages":"Pages 527-535"},"PeriodicalIF":13.1,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Catalysis unleashed: Tuning the d-band center of Mo for efficient sodium polysulfide transformation 催化释放：调整Mo的d波段中心以实现高效的多硫化钠转化

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2025-05-02 DOI: 10.1016/j.jechem.2025.04.063

Shengqiang Zhang , Miao Huang , Zeping Wang , Qiao Wu , Jinbo Bai , Hui Wang , Xiaojie Liu

{"title":"Catalysis unleashed: Tuning the d-band center of Mo for efficient sodium polysulfide transformation","authors":"Shengqiang Zhang , Miao Huang , Zeping Wang , Qiao Wu , Jinbo Bai , Hui Wang , Xiaojie Liu","doi":"10.1016/j.jechem.2025.04.063","DOIUrl":"10.1016/j.jechem.2025.04.063","url":null,"abstract":"<div><div>Understanding the structure-property relationship and the mechanisms by which catalysts promote polysulfide conversion is crucial for the rational design of room-temperature sodium-sulfur (RT Na-S) battery catalysts. Herein, we systematically investigate Fe-, Co-, and Ni-incorporated Mo<sub>2</sub>C as catalysts for RT Na-S battery to elucidate the intrinsic correlation between the <em>d</em> band center of Mo in Mo<sub>2</sub>C and its catalytic activity. Combining experimental and theoretical analysis revealed that Ni-substituted Mo<sub>2</sub>C elevates the <em>d</em> band center while significantly reducing antibonding orbitals (π*) occupancy compared to Fe-substituted Mo<sub>2</sub>C and Co-substituted Mo<sub>2</sub>C counterparts. This electronic restruction enhances <em>d</em>-<em>p</em> hybridization at the Mo-S interface, which strengthens sodium polysulfides adsorption energy and enhances charge transfer, thereby steering sulfur redox pathways toward thermodynamically favorable configurations. Our findings elucidate the intricate interplay between the electronic structure and catalytic activity of Mo<sub>2</sub>C, advancing a novel perspective for the rational design of RT Na-S battery catalysts through tailored modulation of antibonding orbital occupancy.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"108 ","pages":"Pages 785-796"},"PeriodicalIF":13.1,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-crosslinking strategy enabling high-performance inverted inorganic perovskite solar cells with fill factor exceeding 85% 自交联策略实现了填充系数超过85%的高性能倒置无机钙钛矿太阳能电池

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2025-05-02 DOI: 10.1016/j.jechem.2025.04.060

Zhongyu Liu , Xiu Huang , Yuchen Zhao , Jianwei Wang , Jiaying Liu , Chenyu Zhou , Hongwei Wang , Tian Cui , Xiaohui Liu

{"title":"Self-crosslinking strategy enabling high-performance inverted inorganic perovskite solar cells with fill factor exceeding 85%","authors":"Zhongyu Liu , Xiu Huang , Yuchen Zhao , Jianwei Wang , Jiaying Liu , Chenyu Zhou , Hongwei Wang , Tian Cui , Xiaohui Liu","doi":"10.1016/j.jechem.2025.04.060","DOIUrl":"10.1016/j.jechem.2025.04.060","url":null,"abstract":"<div><div>Inorganic CsPbI<sub>3</sub> perovskite with superior thermal stability and photoelectric properties has developed into a promising candidate for photovoltaic applications. Nevertheless, the power conversion efficiency (PCE) of CsPbI<sub>3</sub> perovskite solar cells (PSCs) still lags far behind that of both organic-inorganic hybrid counterparts and the theoretical PCE limit, primarily restricted by severe fill factor (FF) and open-circuit voltage (<em>V</em><sub>OC</sub>) deficits. Herein, an in-situ self-crosslinking strategy is proposed to construct high-performance inverted inorganic PSCs by incorporating acrylate monomers as additives into CsPbI<sub>3</sub> perovskite precursors. During the thermal annealing process of perovskite films, acrylate monomers can form network structures by breaking the C=C groups through an in-situ polymerization reaction, mainly anchored at the grain boundaries (GBs) and on the surfaces of perovskite. Meanwhile, the C=O groups of acrylate polymers can favorably coordinate with uncoordinated Pb<sup>2+</sup>, thereby decreasing defect density and stabilizing the perovskite phase. Particularly, with multiple crosslinking and passivation sites, the incorporation of dipentaerythritol pentaacrylate (DPHA) can effectively improve the perovskite film quality, suppress nonradiative recombination, and block moisture erosion. Consequently, the DPHA-based PSC achieves a champion PCE of 20.05% with a record-high FF of 85.05%, both of which rank among the top in the performance of inverted CsPbI<sub>3</sub> PSCs. Moreover, the unencapsulated DPHA-based device exhibits negligible hysteresis, remarkably improved long-term storage, and operational stability. This work offers a facile and useful strategy to simultaneously promote the efficiency and device stability of inverted inorganic PSCs.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"108 ","pages":"Pages 381-389"},"PeriodicalIF":13.1,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The insights into ionomer-catalyst interactions enabling high-efficiency CO2 electroreduction in pure water 对离子-催化剂相互作用的见解，使纯水中高效的二氧化碳电还原

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2025-05-02 DOI: 10.1016/j.jechem.2025.04.057

Rui Xue , Shu Yuan , Rongyi Wang , Tianzi Bi , Guiru Zhang , Huiyuan Li , Jiewei Yin , Liuxuan Luo , Shuiyun Shen , Xiaohui Yan , Junliang Zhang

{"title":"The insights into ionomer-catalyst interactions enabling high-efficiency CO2 electroreduction in pure water","authors":"Rui Xue , Shu Yuan , Rongyi Wang , Tianzi Bi , Guiru Zhang , Huiyuan Li , Jiewei Yin , Liuxuan Luo , Shuiyun Shen , Xiaohui Yan , Junliang Zhang","doi":"10.1016/j.jechem.2025.04.057","DOIUrl":"10.1016/j.jechem.2025.04.057","url":null,"abstract":"<div><div>With the development of renewable energy, electrochemical carbon dioxide reduction reaction (CO<sub>2</sub>RR) has become a potential solution for achieving carbon neutrality. However, until now, due to issues with salt precipitate and regeneration of the electrolyte, this technology faces challenges such as difficulty in maintaining long-term stable operation and excessive costs. The pure water CO<sub>2</sub> electrolyzers are believed to be the ultimate solution to eliminate the salt depreciation and electrolyte issues. This study develops an in-situ method tailored for CO<sub>2</sub> reduction in pure water. By employing distribution of relaxation times (DRT) analysis and in-situ electrochemical active surface area (ECSA) measurements, we carried out a comprehensive investigation into the mass transport and electrochemical active surface area of gas diffusion electrodes (GDE) under pure water conditions. The maximum 89% CO selectivity and high selectivity (>80%) in the range of 0–300 mA/cm<sup>2</sup> were achieved using commercial Ag nanoparticles by rational design of catalyst layer. We found that ionomers influence the CO<sub>2</sub> electrolyzers performance via affecting local pH, GDE-membrane interface, and CO<sub>2</sub> transport, while catalyst loading mainly influences the active area and CO<sub>2</sub> transport. This work provides benchmark and insights for future pure water CO<sub>2</sub> electrolyzers development.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"108 ","pages":"Pages 390-399"},"PeriodicalIF":13.1,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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