Journal of Energy Chemistry最新文献_第9页

Fabrication of carbon-supported Al2O3 nanoparticles via spontaneous cross-linking to enhance selective hydrogenation of furfural 通过自发交联制备碳支撑 Al2O3 纳米粒子，以提高糠醛的选择性氢化能力

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-09-17 DOI: 10.1016/j.jechem.2024.08.059

Weiwei Yu, Xinbao Zhang, Hongyu Chen, Yanan Wang, Shaoguo Li, Fucun Chen, Zhenni Liu, Xiujie Li, Xiangxue Zhu

{"title":"Fabrication of carbon-supported Al2O3 nanoparticles via spontaneous cross-linking to enhance selective hydrogenation of furfural","authors":"Weiwei Yu, Xinbao Zhang, Hongyu Chen, Yanan Wang, Shaoguo Li, Fucun Chen, Zhenni Liu, Xiujie Li, Xiangxue Zhu","doi":"10.1016/j.jechem.2024.08.059","DOIUrl":"10.1016/j.jechem.2024.08.059","url":null,"abstract":"<div><div>Selective hydrogenation of furfural to furfuryl alcohol is a great challenge in the hydrogenation field due to thermodynamic preference for hydrogenation of C<img>C over C<img>O. Herein, a novel Al<sub>2</sub>O<sub>3</sub>/C-u hybrid catalyst, composed of N-modified dendritic carbon networks supporting Al<sub>2</sub>O<sub>3</sub> nanoparticles, was successfully prepared via carbonizing the freeze-dried gel from spontaneous cross-linking of alginate, Al<sup>3+</sup> and urea<sub>.</sub> The obtained carbon-supported Al<sub>2</sub>O<sub>3</sub> hybrid catalyst has a high ratio (31%) of Al species in pentahedral-coordinated state. The introduction of urea enhances the surface N content, the ratio of pyrrolic N, and specific surface area of catalyst, leading to improved adsorption capacity of C<img>O and the accessibility of active sites. In the furfural hydrogenation reaction with isopropyl alcohol as hydrogen donor, Al<sub>2</sub>O<sub>3</sub>/C-u catalyst achieved a 90% conversion of furfural with 98.0% selectivity to furfuryl alcohol, outperforming that of commercial γ-Al<sub>2</sub>O<sub>3</sub>. Moreover, Al<sub>2</sub>O<sub>3</sub>/C-u demonstrates excellent catalytic stability in the recycling tests attributed to the synergistic effect of abundant weak Lewis acid sites and the anchoring effect of the carbon network on Al<sub>2</sub>O<sub>3</sub> nanoparticles. This work provides an innovative and facile strategy for fabrication of carbon-supported Al<sub>2</sub>O<sub>3</sub> hybrid catalysts with rich Al<sup>V</sup> species, serving as a high selective hydrogenation catalyst through MPV reaction route.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"100 ","pages":"Pages 612-620"},"PeriodicalIF":13.1,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328123","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 battery deployment: Aging trajectory prediction enabling homogenous performance grouping 优化电池部署：老化轨迹预测实现同质性能分组

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-09-16 DOI: 10.1016/j.jechem.2024.09.012

Shuquan Wang , Feng Gao , Zhan Ma , Hao Tian , Yusen Zhang

{"title":"Optimizing battery deployment: Aging trajectory prediction enabling homogenous performance grouping","authors":"Shuquan Wang , Feng Gao , Zhan Ma , Hao Tian , Yusen Zhang","doi":"10.1016/j.jechem.2024.09.012","DOIUrl":"10.1016/j.jechem.2024.09.012","url":null,"abstract":"<div><div>As battery deployments in electric vehicles and energy storage systems grow, ensuring homogeneous performance across units is crucial. We propose a multi-derivative imaging fusion (MDIF) model, employing advanced imaging and machine learning to predict battery aging trajectories from minimal initial data, thus facilitating effective performance grouping before deployment. Utilizing a derivative strategy and Gramian Angular Difference Field for dimensional enhancement, the MDIF model uncovers subtle predictive features from discharge curve data after only ten cycles. The architecture includes a parallel convolutional neural network with lateral connections to enhance feature integration and extraction. Tested on a self-developed dataset, the model achieves an average root-mean-square error of 0.047 Ah and an average mean absolute percentage error of 1.60%, demonstrating high precision and reliability. Its robustness is further validated through transfer learning on two publicly available datasets, adapting with minimal retraining. This approach significantly reduces the testing cycles required, lowering both time and costs associated with battery testing. By enabling precise battery behavior predictions with limited data, the MDIF model optimizes battery utilization and deployment strategies, enhancing system efficiency and sustainability.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"100 ","pages":"Pages 565-577"},"PeriodicalIF":13.1,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328122","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

A mild, configurable, flexible CoNi-LDH(v)/Zn battery based on H-vacancy-induced reversible Zn2+ intercalation 基于氢空位诱导的可逆 Zn2+ 插层的温和、可配置、灵活的 CoNi-LDH(v)/Zn 电池

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-09-16 DOI: 10.1016/j.jechem.2024.09.013

Xinyue Cheng , Dingsheng Wu , Hao Gao , Qingqing Wang , Pengfei Lv , Sam S. Yoon , Qufu Wei

{"title":"A mild, configurable, flexible CoNi-LDH(v)/Zn battery based on H-vacancy-induced reversible Zn2+ intercalation","authors":"Xinyue Cheng , Dingsheng Wu , Hao Gao , Qingqing Wang , Pengfei Lv , Sam S. Yoon , Qufu Wei","doi":"10.1016/j.jechem.2024.09.013","DOIUrl":"10.1016/j.jechem.2024.09.013","url":null,"abstract":"<div><div>Flexible Zn-based batteries have attracted increasing research interest as essential components of wearable energy storage devices. However, the advancement of flexible aqueous Zn-based batteries based on Co-Ni layered double hydroxide (CoNi-LDH) as the cathode material is hampered by their poor cycling stability and the corrosiveness of alkaline electrolytes. Herein, CoNi-LDH nanosheets enriched with H vacancies (CoNi-LDH<sub>(v)</sub>) were constructed on a flexible carbon cloth (CC) substrate via electrochemical deposition and activation. The Zn-based battery comprising CoNi-LDH<sub>(v)</sub>@CC as the cathode exhibited highly reversible conversion reactions and stable operation in 3 M ZnSO<sub>4</sub> electrolyte (pH = 4). The battery delivered an excellent specific capacity (225 mA h g<sup>−1</sup>, 0.26 mA h cm<sup>−2</sup>), acceptable cycling stability (53.9%, 900 cycles), and high discharging voltage. The abundant H vacancies served as active sites for the reversible intercalation of Zn<sup>2+</sup> and the extravasation of NO<sub>3</sub><sup>−</sup> generated channels and space for Zn<sup>2+</sup> transport and storage, together enabling an excellent Zn<sup>2+</sup> storage capacity. Furthermore, a sandwich-structured solid-state CoNi-LDH<sub>(v)</sub>@CC//Zn@CC battery was fabricated and was found to exhibit a noteworthy electrochemical performance and mechanical durability. As a proof of concept, the unencapsulated battery powered a digital watch under various deformation conditions and operated stably for 80 h. Additionally, the flexible battery displayed outstanding customizability, maintaining an open-circuit voltage of 1.42 V even after being cut twice. The proposed engineering strategy contributes to the realization of textiles with truly wearable energy-storage devices.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"100 ","pages":"Pages 498-508"},"PeriodicalIF":13.1,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322895","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

Few-shot learning for screening 2D Ga2CoS4−x supported single-atom catalysts for hydrogen production 筛选二维 Ga2CoS4-x 支持的单原子制氢催化剂的少量学习方法

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-09-16 DOI: 10.1016/j.jechem.2024.09.009

Nabil Khossossi, Poulumi Dey

{"title":"Few-shot learning for screening 2D Ga2CoS4−x supported single-atom catalysts for hydrogen production","authors":"Nabil Khossossi, Poulumi Dey","doi":"10.1016/j.jechem.2024.09.009","DOIUrl":"10.1016/j.jechem.2024.09.009","url":null,"abstract":"<div><div>Hydrogen generation and related energy applications heavily rely on the hydrogen evolution reaction (HER), which faces challenges of slow kinetics and high overpotential. Efficient electrocatalysts, particularly single-atom catalysts (SACs) on two-dimensional (2D) materials, are essential. This study presents a few-shot machine learning (ML) assisted high-throughput screening of 2D septuple-atomic-layer Ga<sub>2</sub>CoS<sub>4−</sub><em><sub>x</sub></em> supported SACs to predict HER catalytic activity. Initially, density functional theory (DFT) calculations showed that 2D Ga<sub>2</sub>CoS<sub>4</sub> is inactive for HER. However, defective Ga<sub>2</sub>CoS<sub>4−</sub><em><sub>x</sub></em> (<em>x</em> = 0–0.25) monolayers exhibit excellent HER activity due to surface sulfur vacancies (SVs), with predicted overpotentials (0–60 mV) comparable to or lower than commercial Pt/C, which typically exhibits an overpotential of around 50 mV in the acidic electrolyte, when the concentration of surface SV is lower than 8.3%. SVs generate spin-polarized states near the Fermi level, making them effective HER sites. We demonstrate ML-accelerated HER overpotential predictions for all transition metal SACs on 2D Ga<sub>2</sub>CoS<sub>4−</sub><em><sub>x</sub></em>. Using DFT data from 18 SACs, an ML model with high prediction accuracy and reduced computation time was developed. An intrinsic descriptor linking SAC atomic properties to HER overpotential was identified. This study thus provides a framework for screening SACs on 2D materials, enhancing catalyst design.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"100 ","pages":"Pages 665-673"},"PeriodicalIF":13.1,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142415968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural designs and mechanism insights into electrocatalytic oxidation of 5-hydroxymethylfurfural 5-hydroxymethylfurfural 电催化氧化的结构设计和机理启示

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-09-16 DOI: 10.1016/j.jechem.2024.08.066

Jing Lei , Huijie Zhang , Jian Yang , Jia Ran , Jiqiang Ning , Haiyan Wang , Yong Hu

{"title":"Structural designs and mechanism insights into electrocatalytic oxidation of 5-hydroxymethylfurfural","authors":"Jing Lei , Huijie Zhang , Jian Yang , Jia Ran , Jiqiang Ning , Haiyan Wang , Yong Hu","doi":"10.1016/j.jechem.2024.08.066","DOIUrl":"10.1016/j.jechem.2024.08.066","url":null,"abstract":"<div><div>Biomass conversion offers an efficient approach to alleviate the energy and environmental issues. Electrochemical oxidation of 5-hydroxymethylfurfural (HMF) has attracted tremendous attention in the latest few years for the mild synthesis conditions and high conversion efficiency to obtain 2,5-furan dicarboxylic acid (FDCA), but there still remain problems such as limited yield, short cycle life, and ambiguous reaction mechanism. Despite many reviews highlighting a variety of electrocatalysts for electrochemical oxidation of HMF, a detailed discussion of the structural modulation of catalyst and the underlying catalytic mechanism is still lacking. We herein provide a comprehensive summary of the recent development of electrochemical oxidation of HMF to FDCA, particularly focusing on the mechanism studies as well as the advanced strategies developed to regulate the structure and optimize the performance of the electrocatalysts, including heterointerface construction, defect engineering, single-atom engineering, and in situ reconstruction. Experimental characterization techniques and theoretical calculation methods for mechanism and active site studies are elaborated, and challenges and future directions of electrochemical oxidation of HMF are also prospected. This review will provide guidance for designing advanced catalysts and deepening the understanding of the reaction mechanism beneath electrochemical oxidation of HMF to FDCA.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"100 ","pages":"Pages 792-814"},"PeriodicalIF":13.1,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658934","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

Green synthesis of glycolic acid through the electrocatalytic reduction of oxalic acid over black TiO2: An experimental and theoretical study 在黑色 TiO2 上通过电催化还原草酸绿色合成乙醇酸：实验和理论研究

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-09-16 DOI: 10.1016/j.jechem.2024.09.011

Hugo Olvera-Vargas , Oscar Andrés Jaramillo-Quintero , Luis Darío Alarcón León , Orlando Castro-Ocampo , Christian A. Celaya , Marina E. Rincón , Jesús Muñiz

{"title":"Green synthesis of glycolic acid through the electrocatalytic reduction of oxalic acid over black TiO2: An experimental and theoretical study","authors":"Hugo Olvera-Vargas , Oscar Andrés Jaramillo-Quintero , Luis Darío Alarcón León , Orlando Castro-Ocampo , Christian A. Celaya , Marina E. Rincón , Jesús Muñiz","doi":"10.1016/j.jechem.2024.09.011","DOIUrl":"10.1016/j.jechem.2024.09.011","url":null,"abstract":"<div><div>Herein, we present the electrocatalytic four-electron hydrogenation of oxalic acid into glycolic acid using black TiO<sub>2</sub> as an electrocatalyst. Oxalic acid is an abundant compound found in several sources of organic waste. The results showed a high selectivity of black TiO<sub>2</sub> toward glycolic acid, with the formation of glyoxylic acid being the rate-limiting step (glyoxylic acid is the two-electron intermediate). The highest Faradaic efficiency (FE) of 69.6% ± 8.3% was achieved at 10.2 mA cm<sup>−2</sup> in 4 h of electrolysis using an H-type cell operated at room temperature, with 50.2% ± 3.8% of oxalic acid conversion (degradation kinetic constant <em>k</em> = 0.0042 ± 0.0001 min<sup>−1</sup>), 58.8% ± 7.0% of reaction yield and 1.2 ± 0.18 g L<sup>−1</sup> of glycolic acid production. A theoretical model of black TiO<sub>2</sub> coming from anatase TiO<sub>2</sub> was implemented by introducing Ti<sup>3+</sup> defects, which gave black TiO<sub>2</sub> the theoretical capability to easily transform oxalic acid into glycolic acid as experimentally observed. The reaction mechanism was supported and described in detail by density functional theory calculations, which revealed that surface Ti<sup>3+</sup> states were the main catalytic sites. This is the first time that a detailed step-by-step mechanism at the atomic level has been proposed for this electrocatalytic reaction, which represents a valuable contribution to the understanding of this process of high energy/environmental interest. This is also the first time that black TiO<sub>2</sub> has been used as an electrocatalyst for this sustainable process.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"100 ","pages":"Pages 544-556"},"PeriodicalIF":13.1,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dielectric-ion-conductive ZnNb2O6 layer enabling rapid desolvation and diffusion for dendrite-free Zn metal batteries 介电离子导电 ZnNb2O6 层可实现无枝晶锌金属电池的快速脱溶和扩散

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-09-16 DOI: 10.1016/j.jechem.2024.09.010

Haifeng Yang , Jian Wang , Panpan Zhang , Xiaomin Cheng , Qinghua Guan , Jing Dong , Bixian Chen , Lujie Jia , Jing Zhang , Yongzheng Zhang , Yunjian Liu , Hongzhen Lin

{"title":"Dielectric-ion-conductive ZnNb2O6 layer enabling rapid desolvation and diffusion for dendrite-free Zn metal batteries","authors":"Haifeng Yang , Jian Wang , Panpan Zhang , Xiaomin Cheng , Qinghua Guan , Jing Dong , Bixian Chen , Lujie Jia , Jing Zhang , Yongzheng Zhang , Yunjian Liu , Hongzhen Lin","doi":"10.1016/j.jechem.2024.09.010","DOIUrl":"10.1016/j.jechem.2024.09.010","url":null,"abstract":"<div><div>Rechargeable aqueous zinc-metal batteries (AZMBs) are promising candidates for large-scale energy storage systems due to their low cost and high safety. However, their performance and sustainability are significantly hindered by the sluggish desolvation kinetics at the electrode/electrolyte interface and the corresponding hydrogen evolution reaction where active water molecules tightly participate in the Zn(H<sub>2</sub>O)<sub>6</sub><sup>2+</sup> solvation shell. Herein, learnt from self-generated solid electrolyte interphase (SEI) in anodes, the dielectric but ion-conductive zinc niobate nanoparticles artificial layer is constructed on metallic Zn surface (ZNB@Zn), acting as a rapid desolvation promotor. The zincophilic and dielectric-conductive properties of ZNB layer accelerate interfacial desolvation/diffusion and suppress surface corrosion or dendrite formation, achieving uniform Zn plating/stripping behavior, as confirmed by electronic/optical microscopies and interface spectroscopical measurements together with theoretical calculations. Consequently, the as-prepared ZNB@Zn electrode exhibits excellent cycling stability of over 2000 h and robust reversibility (99.54%) even under high current density and depth of discharge conditions. Meanwhile, the assembled ZNB@Zn-based full cell displays high capacity-retention rate of 80.21% after 3000 cycles at 5 A g<sup>−1</sup> and outstanding rate performance up to 10 A g<sup>−1</sup>. The large-areal pouch cell is stabilized for hundreds of cycles, highlighting the bright prospects of the dielectric but ion-conductive layer in further application of AZMBs.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"100 ","pages":"Pages 693-701"},"PeriodicalIF":13.1,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142415972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Staged dendrite suppression for high safe and stable lithium-sulfur batteries 分阶段抑制枝晶，实现安全稳定的锂硫电池

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-09-14 DOI: 10.1016/j.jechem.2024.09.006

Jun Jiang , Zhenjie Lu , Yanwen Ding , Shujun Liu , Zhijie Qi , Tian Tang , Yunfan Zhang , Zhiyuan Ma , Jingwen Sun , Liang Xue , Wenyao Zhang , Pan Xiong , Xin Wang , Junwu Zhu , Yongsheng Fu

{"title":"Staged dendrite suppression for high safe and stable lithium-sulfur batteries","authors":"Jun Jiang , Zhenjie Lu , Yanwen Ding , Shujun Liu , Zhijie Qi , Tian Tang , Yunfan Zhang , Zhiyuan Ma , Jingwen Sun , Liang Xue , Wenyao Zhang , Pan Xiong , Xin Wang , Junwu Zhu , Yongsheng Fu","doi":"10.1016/j.jechem.2024.09.006","DOIUrl":"10.1016/j.jechem.2024.09.006","url":null,"abstract":"<div><div>The unavoidable dendrite growth and shuttle effect have long been stranglehold challenges limiting the safety and practicality of lithium-sulfur batteries. Herein, we propose a dual-action strategy to address the lithium dendrite issue in stages by constructing a multifunctional surface-negatively-charged nanodiamond layer with high ductility and robust puncture resistance on polypropylene (PP) separator. The uniformly loaded compact negative layer can not only significantly enhance electron transmission efficiency and promote uniform lithium deposition, but also reduce the formation of dendrite during early deposition stage. Most importantly, under the strong puncture stress encountered during the deterioration of lithium dendrite growth under limiting current, the high ductility and robust puncture resistance (145.88 MPa) of as-obtained nanodiamond layer can effectively prevent short circuits caused by unavoidable lithium dendrite. The Li||Li symmetrical cells assembled with nanodiamond layer modified PP demonstrated a stable cycle of over 1000 h at 2 mA cm<sup>−</sup><sup>2</sup> with a polarization voltage of only 29.3 mV. Additionally, the negative charged layer serves as a physical barrier blocking lithium polysulfide ions, effectively mitigating capacity attenuation. The improved cells achieved a capacity decay of only 0.042% per cycle after 700 cycles at 3 C, demonstrating effective suppression of dendrite growth and capacity attenuation, showing promising prospect.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"100 ","pages":"Pages 674-683"},"PeriodicalIF":13.1,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142416916","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

Electrocatalytic cleavage of a lignin β-O-4 model compound and coupling with nitrogen-containing aromatics using Prussian blue analogue-derived nickel–cobalt spinel 使用普鲁士蓝类似物衍生的镍钴尖晶石电催化裂解木质素 β-O-4 模型化合物并与含氮芳烃耦合

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-09-14 DOI: 10.1016/j.jechem.2024.08.065

Yi Qi , Xueying Chen , Bowen Liu , Xuliang Lin , Xueqing Qiu , Yanlin Qin

{"title":"Electrocatalytic cleavage of a lignin β-O-4 model compound and coupling with nitrogen-containing aromatics using Prussian blue analogue-derived nickel–cobalt spinel","authors":"Yi Qi , Xueying Chen , Bowen Liu , Xuliang Lin , Xueqing Qiu , Yanlin Qin","doi":"10.1016/j.jechem.2024.08.065","DOIUrl":"10.1016/j.jechem.2024.08.065","url":null,"abstract":"<div><div>Electrochemical conversion of lignin for the production of high-value heterocyclic aromatic compounds has great potential. We demonstrate the targeted synthesis and cation modulation of NiCo<sub>2</sub>O<sub>4</sub> spinel nanoboxes, synthesized via cation exchange and calcination oxidation. These catalysts exhibit excellent efficacy in the electrocatalytic conversion of lignin model compounds, specifically 2-phenoxy-1-phenylethanol, into nitrogen-containing aromatics, achieving high conversion rates and selectivities. These catalysts were synthesized via a cation exchange and calcination oxidation process, using Prussian blue nanocubes as precursors. The porous architecture and polymetallic composition of the NiCo<sub>2</sub>O<sub>4</sub> spinel demonstrated superior performance in electrocatalytic oxidative coupling, achieving a 99.2 wt% conversion rate of the 2-phenoxy-1-phenylethanol with selectivities of 37.5 wt% for quinoline derivatives and 31.5 wt% for phenol. Key innovations include the development of a sustainable one-pot synthesis method for quinoline derivatives, the elucidation of a multistage reaction pathway involving C<img>O bond cleavage, hydroxyaldol condensation, and C<img>N bond formation, and a deeper mechanistic understanding derived from DFT simulations. This work establishes a new strategy for lignin valorization, offering a sustainable route to produce high-value nitrogen-containing aromatics from renewable biomass under mild conditions, without the need for additional reagents.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"100 ","pages":"Pages 628-636"},"PeriodicalIF":13.1,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328125","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

Regulating crystallization and retarding oxidation in Sn-Pb perovskite via 1D cation engineering for high performance all-perovskite tandem solar cells 通过一维阳离子工程调节锡铅包晶石的结晶和延缓氧化，实现高性能全包晶串联太阳能电池

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-09-13 DOI: 10.1016/j.jechem.2024.09.007

Ranran Liu , Xin Zheng , Zaiwei Wang , Miaomiao Zeng , Chunxiang Lan , Shaomin Yang , Shangzhi Li , Awen Wang , Min Li , Jing Guo , Xuefei Weng , Yaoguang Rong , Xiong Li

{"title":"Regulating crystallization and retarding oxidation in Sn-Pb perovskite via 1D cation engineering for high performance all-perovskite tandem solar cells","authors":"Ranran Liu , Xin Zheng , Zaiwei Wang , Miaomiao Zeng , Chunxiang Lan , Shaomin Yang , Shangzhi Li , Awen Wang , Min Li , Jing Guo , Xuefei Weng , Yaoguang Rong , Xiong Li","doi":"10.1016/j.jechem.2024.09.007","DOIUrl":"10.1016/j.jechem.2024.09.007","url":null,"abstract":"<div><div>All-perovskite tandem solar cells have the potential to surpass the theoretical efficiency limit of single junction solar cells by reducing thermalization losses. However, the challenges encompass the oxidation of Sn<sup>2+</sup> to Sn<sup>4+</sup> and uncontrolled crystallization kinetics in Sn-Pb perovskites, leading to nonradiative recombination and compositional heterogeneity to decrease photovoltaic efficiency and operational stability. Herein, we introduced an ionic liquid additive, 1-ethyl-3-methylimidazolium iodide (EMIMI) into Sn-Pb perovskite precursor to form low-dimensional Sn-rich/pure-Sn perovskites at grain boundaries, which mitigates oxidation of Sn<sup>2+</sup> to Sn<sup>4+</sup> and regulates the film-forming dynamics of Sn/Pb-based perovskite films. The optimized single-junction Sn-Pb perovskite devices incorporating EMIMI achieved a high efficiency of 22.87%. Furthermore, combined with wide-bandgap perovskite sub-cells in tandem device, we demonstrate 2-terminal all-perovskite tandem solar cells with a power conversion efficiency of 28.34%, achieving improved operational stability.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"100 ","pages":"Pages 646-652"},"PeriodicalIF":13.1,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142358529","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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