Carbon Energy最新文献_第9页

Confined cobalt single-atom catalysts with strong electronic metal-support interactions based on a biomimetic self-assembly strategy 基于仿生自组装策略的具有强电子金属-支撑相互作用的封闭钴单原子催化剂

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-04-17 DOI: 10.1002/cey2.554

Bowen Guo, Zekun Wang, Lei Zheng, Guang Mo, Hongjun Zhou, Dan Luo

{"title":"Confined cobalt single-atom catalysts with strong electronic metal-support interactions based on a biomimetic self-assembly strategy","authors":"Bowen Guo, Zekun Wang, Lei Zheng, Guang Mo, Hongjun Zhou, Dan Luo","doi":"10.1002/cey2.554","DOIUrl":"10.1002/cey2.554","url":null,"abstract":"Designing high-performance and low-cost electrocatalysts for oxygen evolution reaction (OER) is critical for the conversion and storage of sustainable energy technologies. Inspired by the biomineralization process, we utilized the phosphorylation sites of collagen molecules to combine with cobalt-based mononuclear precursors at the molecular level and built a three-dimensional (3D) porous hierarchical material through a bottom-up biomimetic self-assembly strategy to obtain single-atom catalysts confined on carbonized biomimetic self-assembled carriers (Co SACs/cBSC) after subsequent high-temperature annealing. In this strategy, the biomolecule improved the anchoring efficiency of the metal precursor through precise functional groups; meanwhile, the binding-then-assembling strategy also effectively suppressed the nonspecific adsorption of metal ions, ultimately preventing atomic agglomeration and achieving strong electronic metal-support interactions (EMSIs). Experimental characterizations confirm that binding forms between cobalt metal and carbonized self-assembled substrate (Co–O4–P). Theoretical calculations disclose that the local environment changes significantly tailored the Co d-band center, and optimized the binding energy of oxygenated intermediates and the energy barrier of oxygen release. As a result, the obtained Co SACs/cBSC catalyst can achieve remarkable OER activity and 24 h durability in 1 M KOH (η10 at 288 mV; Tafel slope of 44 mV dec−1), better than other transition metal-based catalysts and commercial IrO2. Overall, we presented a self-assembly strategy to prepare transition metal SACs with strong EMSIs, providing a new avenue for the preparation of efficient catalysts with fine atomic structures.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":null,"pages":null},"PeriodicalIF":19.5,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.554","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140692028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Practical operating flexibility of a bifunctional freestanding membrane for efficient anion exchange membrane water electrolysis across all current ranges 双功能独立式膜在所有电流范围内进行高效阴离子交换膜电解水的实际操作灵活性

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-04-12 DOI: 10.1002/cey2.542

Hong-Jin Son, Jeemin Hwang, Min Young Choi, Seung Hee Park, Jae Hyuk Jang, Byungchan Han, Sung Hoon Ahn

{"title":"Practical operating flexibility of a bifunctional freestanding membrane for efficient anion exchange membrane water electrolysis across all current ranges","authors":"Hong-Jin Son, Jeemin Hwang, Min Young Choi, Seung Hee Park, Jae Hyuk Jang, Byungchan Han, Sung Hoon Ahn","doi":"10.1002/cey2.542","DOIUrl":"10.1002/cey2.542","url":null,"abstract":"This study explores a symmetric configuration approach in anion exchange membrane (AEM) water electrolysis, focusing on overcoming adaptability challenges in dynamic conditions. Here, a rapid and mild synthesis technique for fabricating fibrous membrane-type catalyst electrodes is developed. Our method leverages the contrasting oxidation states between the sulfur-doped NiFe(OH)2 shell and the metallic Ni core, as revealed by electron energy loss spectroscopy. Theoretical evaluations confirm that the S–NiFe(OH)2 active sites optimize free energy for alkaline water electrolysis intermediates. This technique bypasses traditional energy-intensive processes, achieving superior bifunctional activity beyond current benchmarks. The symmetric AEM water electrolyzer demonstrates a current density of 2 A cm−2 at 1.78 V at 60°C in 1 M KOH electrolyte and also sustains ampere-scale water electrolysis below 2.0 V for 140 h even in ambient conditions. These results highlight the system's operational flexibility and structural stability, marking a significant advancement in AEM water electrolysis technology.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":null,"pages":null},"PeriodicalIF":19.5,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.542","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140564467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cross-layer all-interface defect passivation with pre-buried additive toward efficient all-inorganic perovskite solar cells 利用预埋添加剂进行跨层全表面缺陷钝化，实现高效全无机包晶太阳能电池

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-04-12 DOI: 10.1002/cey2.566

Qiurui Wang, Jingwei Zhu, Yuanyuan Zhao, Yijie Chang, Nini Hao, Zhe Xin, Qiang Zhang, Cong Chen, Hao Huang, Qunwei Tang

{"title":"Cross-layer all-interface defect passivation with pre-buried additive toward efficient all-inorganic perovskite solar cells","authors":"Qiurui Wang, Jingwei Zhu, Yuanyuan Zhao, Yijie Chang, Nini Hao, Zhe Xin, Qiang Zhang, Cong Chen, Hao Huang, Qunwei Tang","doi":"10.1002/cey2.566","DOIUrl":"10.1002/cey2.566","url":null,"abstract":"The buried interface in the perovskite solar cell (PSC) has been regarded as a breakthrough to boost the power conversion efficiency and stability. However, a comprehensive manipulation of the buried interface in terms of the transport layer, buried interlayer, and perovskite layer has been largely overlooked. Herein, we propose the use of a volatile heterocyclic compound called 2-thiopheneacetic acid (TPA) as a pre-buried additive in the buried interface to achieve cross-layer all-interface defect passivation through an in situ bottom-up infiltration diffusion strategy. TPA not only suppresses the serious interfacial nonradiative recombination losses by precisely healing the interfacial and underlying defects but also effectively enhances the quality of perovskite film and releases the residual strain of perovskite film. Owing to this versatility, TPA-tailored CsPbBr3 PSCs deliver a record efficiency of 11.23% with enhanced long-term stability. This breakthrough in manipulating the buried interface using TPA opens new avenues for further improving the performance and reliability of PSC.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":null,"pages":null},"PeriodicalIF":19.5,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.566","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140564463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bi@C nanosphere anode with Na+-ether-solvent cointercalation behavior to achieve fast sodium storage under extreme low temperatures 具有 Na+-乙醚-溶剂共价行为的 Bi@C 纳米负极可在极低温度下实现钠的快速储存

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-04-12 DOI: 10.1002/cey2.531

Lingli Liu, Siqi Li, Lei Hu, Xin Liang, Wei Yang, Xulai Yang, Kunhong Hu, Chaofeng Hou, Yongsheng Han, Shulei Chou

{"title":"Bi@C nanosphere anode with Na+-ether-solvent cointercalation behavior to achieve fast sodium storage under extreme low temperatures","authors":"Lingli Liu, Siqi Li, Lei Hu, Xin Liang, Wei Yang, Xulai Yang, Kunhong Hu, Chaofeng Hou, Yongsheng Han, Shulei Chou","doi":"10.1002/cey2.531","DOIUrl":"10.1002/cey2.531","url":null,"abstract":"The low ion transport is a major obstacle for low-temperature (LT) sodium-ion batteries (SIBs). Herein, a core-shell structure of bismuth (Bi) nanospheres coated with carbon (Bi@C) is constructed by utilizing a novel Bi-based complex (1,4,5,8-naphthalenetetracarboxylic dianhydride as the ligand) as the precursor, which provides an effective template to fabricate Bi-based anodes. At −40°C, the Bi@C anode achieves a high capacity, which is equivalent to 96% of that at 25°C, benefitting from the core-shell nanostructured engineering and Na+-ether-solvent cointercalation process. The special Na+-diglyme cointercalation behavior may effectively reduce the activation energy and accelerate the Na+ diffusion kinetics, enabling the excellent low-temperature performance of the Bi@C electrode. As expected, the fabricated Na3V2(PO4)3//Bi@C full-cell delivers impressive rechargeability in the ether-based electrolyte at −40°C. Density functional theory calculations and electrochemical tests also reveal the fast reaction kinetic mechanism at LT, thanks to a much lower diffusion energy barrier (167 meV) and a lower reaction activation energy (32.2 kJ mol−1) of Bi@C anode in comparison with that of bulk Bi. This work provides a rational design of Bi-based electrodes for rechargeable SIBs under extreme conditions.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":null,"pages":null},"PeriodicalIF":19.5,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.531","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140564453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel improvement strategy and a comprehensive mechanism insight for α-MnO2 energy storage in rechargeable aqueous zinc-ion batteries 可充电锌离子水电池中 α-MnO2 储能的新型改进策略和全面机理分析

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-04-05 DOI: 10.1002/cey2.536

Fan Xiankai, Xiang Kaixiong, Zhou Wei, Deng Weina, Zhu Hai, Chen Liang, Chen Han

{"title":"A novel improvement strategy and a comprehensive mechanism insight for α-MnO2 energy storage in rechargeable aqueous zinc-ion batteries","authors":"Fan Xiankai, Xiang Kaixiong, Zhou Wei, Deng Weina, Zhu Hai, Chen Liang, Chen Han","doi":"10.1002/cey2.536","DOIUrl":"10.1002/cey2.536","url":null,"abstract":"Aqueous zinc-ion batteries have been regarded as the most potential candidate to substitute lithium-ion batteries. However, many serious challenges such as suppressing zinc dendrite growth and undesirable reactions, and achieving fully accepted mechanism also have not been solved. Herein, the commensal composite microspheres with α-MnO2 nano-wires and carbon nanotubes were achieved and could effectively suppress ZnSO4·3Zn(OH)2·nH2O rampant crystallization. The electrode assembled with the microspheres delivered a high initial capacity at a current density of 0.05 A g−1 and maintained a significantly prominent capacity retention of 88% over 2500 cycles. Furthermore, a novel energy-storage mechanism, in which multivalent manganese oxides play a synergistic effect, was comprehensively investigated by the quantitative and qualitative analysis for ZnSO4·3Zn(OH)2·nH2O. The capacity contribution of multivalent manganese oxides and the crystal structure dissection in the transformed processes were completely identified. Therefore, our research could provide a novel strategy for designing improved electrode structure and a comprehensive understanding of the energy storage mechanism of α-MnO2 cathodes.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":null,"pages":null},"PeriodicalIF":19.5,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.536","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140603324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly efficient three-dimensional solar evaporator for zero liquid discharge desalination of high-salinity brine 用于高盐度盐水零排放脱盐的高效三维太阳能蒸发器

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-04-05 DOI: 10.1002/cey2.548

Meichun Ding, Demin Zhao, Panpan Feng, Baolei Wang, Zhenying Duan, Rui Wei, Yuxi Zhao, Chen-Yang Liu, Chenwei Li

{"title":"Highly efficient three-dimensional solar evaporator for zero liquid discharge desalination of high-salinity brine","authors":"Meichun Ding, Demin Zhao, Panpan Feng, Baolei Wang, Zhenying Duan, Rui Wei, Yuxi Zhao, Chen-Yang Liu, Chenwei Li","doi":"10.1002/cey2.548","DOIUrl":"10.1002/cey2.548","url":null,"abstract":"Solar-driven interfacial evaporation is a promising technology for freshwater production from seawater, but salt accumulation on the evaporator surface hinders its performance and sustainability. In this study, we report a simple and green strategy to fabricate a three-dimensional porous graphene spiral roll (3GSR) that enables highly efficient solar evaporation, salt collection, and water production from near-saturated brine with zero liquid discharge (ZLD). The 3GSR design facilitates energy recovery, radial brine transport, and directional salt crystallization, thereby resulting in an ultrahigh evaporation rate of 9.05 kg m−2 h−1 in 25 wt% brine under 1-sun illumination for 48 h continuously. Remarkably, the directional salt crystallization on its outer surface not only enlarges the evaporation area but also achieves an ultrahigh salt collection rate of 2.92 kg m−2 h−1, thus enabling ZLD desalination. Additionally, 3GSR exhibits a record-high water production rate of 3.14 kg m−2 h−1 in an outdoor test. This innovative solution offers a highly efficient and continuous solar desalination method for water production and ZLD brine treatment, which has great implications for addressing global water scarcity and environmental issues arising from brine disposal.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":null,"pages":null},"PeriodicalIF":19.5,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.548","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140603358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enabling built-in electric fields on rhenium-vacancy-rich heterojunction interfaces of transition-metal dichalcogenides for pH-universal efficient hydrogen and electric energy generation 在富含铼空位的过渡金属二掺杂化合物异质结界面上实现内置电场，以实现 pH 值通用的高效氢能和电能发电

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-04-02 DOI: 10.1002/cey2.526

Benzhi Wang, Lixia Wang, Ji Hoon Lee, Tayirjan Taylor Isimjan, Hyung Mo Jeong, Xiulin Yang

{"title":"Enabling built-in electric fields on rhenium-vacancy-rich heterojunction interfaces of transition-metal dichalcogenides for pH-universal efficient hydrogen and electric energy generation","authors":"Benzhi Wang, Lixia Wang, Ji Hoon Lee, Tayirjan Taylor Isimjan, Hyung Mo Jeong, Xiulin Yang","doi":"10.1002/cey2.526","DOIUrl":"10.1002/cey2.526","url":null,"abstract":"Most advanced hydrogen evolution reaction (HER) catalysts show high activity under alkaline conditions. However, the performance deteriorates at a natural and acidic pH, which is often problematic in practical applications. Herein, a rhenium (Re) sulfide–transition-metal dichalcogenide heterojunction catalyst with Re-rich vacancies (NiS2-ReS2-V) has been constructed. The optimized catalyst shows extraordinary electrocatalytic HER performance over a wide range of pH, with ultralow overpotentials of 42, 85, and 122 mV under alkaline, acidic, and neutral conditions, respectively. Moreover, the two-electrode system with NiS2-ReS2-V1 as the cathode provides a voltage of 1.73 V at 500 mA cm−2, superior to industrial systems. Besides, the open-circuit voltage of a single Zn–H2O cell with NiS2-ReS2-V1 as the cathode can reach an impressive 90.9% of the theoretical value, with a maximum power density of up to 31.6 mW cm−2. Moreover, it shows remarkable stability, with sustained discharge for approximately 120 h at 10 mA cm−2, significantly outperforming commercial Pt/C catalysts under the same conditions in all aspects. A series of systematic characterizations and theoretical calculations demonstrate that Re vacancies on the heterojunction interface would generate a stronger built-in electric field, which profoundly affects surface charge distribution and subsequently enhances HER performance.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":null,"pages":null},"PeriodicalIF":19.5,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.526","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140564462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photo-promoted rapid reconstruction induced alterations in active site of Ag@amorphous NiFe hydroxides for enhanced oxygen evolution reaction 光促进快速重构诱导 Ag@amorphous NiFe 氢氧化物活性位点的改变，以增强氧进化反应

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-04-02 DOI: 10.1002/cey2.543

Zhi Cai, Mingyuan Xu, Yanhong Li, Xinyan Zhou, Kexin Yin, Lidong Li, Binbin Jia, Lin Guo, Hewei Zhao

{"title":"Photo-promoted rapid reconstruction induced alterations in active site of Ag@amorphous NiFe hydroxides for enhanced oxygen evolution reaction","authors":"Zhi Cai, Mingyuan Xu, Yanhong Li, Xinyan Zhou, Kexin Yin, Lidong Li, Binbin Jia, Lin Guo, Hewei Zhao","doi":"10.1002/cey2.543","DOIUrl":"10.1002/cey2.543","url":null,"abstract":"The dynamic surface self-reconstruction behavior in local structure correlates with oxygen evolution reaction (OER) performance, which has become an effective strategy for constructing the catalytic active phase. However, it remains a challenge to understand the mechanisms of reconstruction and to accomplish it fast and deeply. Here, we reported a photo-promoted rapid reconstruction (PRR) process on Ag nanoparticle-loaded amorphous Ni-Fe hydroxide nanosheets on carbon cloth for enhanced OER. The photogenerated holes generated by Ag in conjunction with the anodic potential contributed to a thorough reconstruction of the amorphous substrate. The valence state of unsaturated coordinated Fe atoms, which serve as active sites, is significantly increased, while the corresponding crystalline substrate shows little change. The different structural evolutions of amorphous and crystalline substrates during reconstruction lead to diverse pathways of OER. This PRR utilizing loaded noble metal nanoparticles can accelerate the generation of active species in the substrate and increase the electrical conductivity, which provides a new inspiration to develop efficient catalysts via reconstruction strategies.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":null,"pages":null},"PeriodicalIF":19.5,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.543","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140564466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pore structure and oxygen content design of amorphous carbon toward a durable anode for potassium/sodium-ion batteries 设计无定形碳的孔隙结构和含氧量，使其成为钾/钠离子电池的耐用阳极

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-03-29 DOI: 10.1002/cey2.534

Xiaodong Shi, Chuancong Zhou, Yuxin Gao, Jinlin Yang, Yu Xie, Suyang Feng, Jie Zhang, Jing Li, Xinlong Tian, Hui Zhang

{"title":"Pore structure and oxygen content design of amorphous carbon toward a durable anode for potassium/sodium-ion batteries","authors":"Xiaodong Shi, Chuancong Zhou, Yuxin Gao, Jinlin Yang, Yu Xie, Suyang Feng, Jie Zhang, Jing Li, Xinlong Tian, Hui Zhang","doi":"10.1002/cey2.534","DOIUrl":"10.1002/cey2.534","url":null,"abstract":"Both sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs) are considered as promising candidates in grid-level energy storage devices. Unfortunately, the larger ionic radii of K+ and Na+ induce poor diffusion kinetics and cycling stability of carbon anode materials. Pore structure regulation is an ideal strategy to promote the diffusion kinetics and cyclic stability of carbon materials by facilitating electrolyte infiltration, increasing the transport channels, and alleviating the volume change. However, traditional pore-forming agent-assisted methods considerably increase the difficulty of synthesis and limit practical applications of porous carbon materials. Herein, porous carbon materials (Ca-PC/Na-PC/K-PC) with different pore structures have been prepared with gluconates as the precursors, and the amorphous structure, abundant micropores, and oxygen-doping active sites endow the Ca-PC anode with excellent potassium and sodium storage performance. For PIBs, the capacitive contribution ratio of Ca-PC is 82% at 5.0 mV s−1 due to the introduction of micropores and high oxygen-doping content, while a high reversible capacity of 121.4 mAh g−1 can be reached at 5 A g−1 after 2000 cycles. For SIBs, stable sodium storage capacity of 101.4 mAh g−1 can be achieved at 2 A g−1 after 8000 cycles with a very low decay rate of 0.65% for per cycle. This work may provide an avenue for the application of porous carbon materials in the energy storage field.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":null,"pages":null},"PeriodicalIF":19.5,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.534","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140365276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultralow charge–discharge voltage gap of 0.05 V in sunlight-responsive neutral aqueous Zn–air battery 阳光响应型中性锌-空气水溶液电池中 0.05 V 的超低充放电电压间隙

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-03-28 DOI: 10.1002/cey2.535

Zhimin Niu, Yan Gao, Tianhui Wu, Fei Zhang, Ran Zhao, Zijia Chen, Yiming Yuan, Tifeng Jiao, Jianmin Gu, Li Lu, Desong Wang

{"title":"Ultralow charge–discharge voltage gap of 0.05 V in sunlight-responsive neutral aqueous Zn–air battery","authors":"Zhimin Niu, Yan Gao, Tianhui Wu, Fei Zhang, Ran Zhao, Zijia Chen, Yiming Yuan, Tifeng Jiao, Jianmin Gu, Li Lu, Desong Wang","doi":"10.1002/cey2.535","DOIUrl":"10.1002/cey2.535","url":null,"abstract":"Rechargeable neutral aqueous zinc−air batteries (ZABs) are a promising type of energy storage device with longer operating life and less corrosiveness compared with conventional alkaline ZABs. However, the neutral ZABs normally possess poor oxygen evolution reactions (OERs) and oxygen reduction reactions performance, resulting in a large charge–discharge voltage gap and low round-trip efficiency. Herein, we demonstrate a sunlight-assisted strategy for achieving an ultralow voltage gap of 0.05 V in neutral ZABs by using the FeOOH-decorated BiVO4 (Fe-BiVO4) as an oxygen catalyst. Under sunlight, the electrons move from the valence band (VB) of Fe-BiVO4 to the conduction band producing holes in VB to promote the OER process and hence reduce the overpotential. Meanwhile, the photopotential generated by the Fe-BiVO4 compensates a part of the charging potential of neutral ZABs. Accordingly, the energy loss of the battery could be compensated via solar energy, leading to a record-low gap of 0.05 V between the charge and discharge voltage with a high round-trip efficiency of 94%. This work offers a simple but efficient pathway for solar-energy utilization in storage devices, further guiding the design of high energy efficiency of neutral aqueous ZABs.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":null,"pages":null},"PeriodicalIF":19.5,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.535","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140324045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0