Energy Lab最新文献_第2页

Rational Design of Single-Atom Catalysts for Electrochemical Carbon Dioxide Reduction toward Multi-Carbon Products 电化学还原二氧化碳多碳产物单原子催化剂的合理设计

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220023

Zhanxi Fan

{"title":"Rational Design of Single-Atom Catalysts for Electrochemical Carbon Dioxide Reduction toward Multi-Carbon Products","authors":"Zhanxi Fan","doi":"10.54227/elab.20220023","DOIUrl":"https://doi.org/10.54227/elab.20220023","url":null,"abstract":"Electrochemical carbon dioxide (CO2) reduction is emerging as a promising technique to decrease atmospheric CO2 concentration and relieve energy pressure. Besides the single-carbon (C1) species, multi-carbon (C2+) products are more preferred because of their elevated energy density and/or larger economic value. Single atom catalysts (SACs) have been widely used in the field of catalysis due to their tunable active center and unique electronic structure. So far, extensive research progresses have been achieved in utilizing SACs to promote the CO2 reduction toward C1 products, but little attention is paid to the formation of high-value C2+ products. In this review, we present the recent advances of electrochemical reduction of CO2 to C2+ products with SACs. Firstly, the reaction mechanism of converting CO2 to C2+ products is briefly introduced. Then the general design principles of SACs toward C2+ products are systematically discussed. After that, we highlight the representative studies on the C2+ generation and the corresponding mechanism with SACs, including the copper and non-copper based SACs. Finally, we summarize the latest progresses and provide personal perspectives for the future design and target preparation of advanced SACs for the high-performance CO2 electrolysis to specific C2+ products.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127352355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular extension engineering constructing long-chain organic elastomeric interphase towards stable potassium storage 构建长链有机弹性体间相的分子延伸工程

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220014

Jiang Zhou, Bingan Lu

引用次数: 11

Perovskite/organic tandem solar cells: a review 钙钛矿/有机串联太阳能电池研究进展

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20230002

Junliang Yang

{"title":"Perovskite/organic tandem solar cells: a review","authors":"Junliang Yang","doi":"10.54227/elab.20230002","DOIUrl":"https://doi.org/10.54227/elab.20230002","url":null,"abstract":"The power conversion efficiency (PCE) of perovskite solar cells (PSCs) has rapidly increased and exceeded 25% based on strategies such as interface modification, doping engineering, and optimization of preparation methods. further improvement seems to have entered a bottleneck period due to Shockley-Quiesser (S-Q) limit of single-junction devices. Tandem cell designed to achieve efficient matching of a wider range of the solar spectrum is considered a successful method to solve this difficulty. In tandem architecture, the PSC is a perfect top-cell candidate owing to its large absorption coefficient, adjustable band gap, and feasible low-temperature solution processibility. The perovskite-based tandem solar cells (TSCs) such as perovskite-silicon, perovskite-perovskite, and perovskite-organic devices have stimulated enormous research interest and got significant progress in the past few years. Among them, the abundant perovskite and organic semiconductor materials with tunable components, adjustable bandgap, and various physical and chemical properties make the perovskite/organic TSCs (PO-TSCs) more competitive. In this work, a general introduction and review of recent advances in perovskite/organic tandem features are provided. In addition, a perspective and some suggestions about future developments in this field are also discussed.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124856603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-dimensional antimony selenosulfide as an emerging material for solar cell applications 低维硒化硫化锑作为太阳能电池应用的新兴材料

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220016

Tao Chen

{"title":"Low-dimensional antimony selenosulfide as an emerging material for solar cell applications","authors":"Tao Chen","doi":"10.54227/elab.20220016","DOIUrl":"https://doi.org/10.54227/elab.20220016","url":null,"abstract":"Antimony chalcogenides (Sb2X3), including Sb2S3, Sb2Se3, and the alloy-type Sb2(S,Se)3, have been considered as a promising absorber materials for photovoltaic applications. Owing to its unique quasi-one-dimensional crystal structure, it displays distinct defect and carrier transport properties and requires special material synthesis strategy compared with the traditional three-dimensional crystal structure semiconductor materials. Recent studies on this class of materials have generated new understandings in film fabrication, defect characteristics and passivation, interfacial engineering, and efficiency improvement. With these efforts, the power conversion efficiency of the solar cell device has been increased from below 3% to 10.7% over the past 10 years. This efficiency achievement suggests that Sb2X3 possesses great potential for practical applications with further efficiency enhancement. This perspective article presents the critical development in the Sb2X3 materials and solar cells in recent years, including the unique crystal structure for solar cells, the preparation method for obtaining high-quality Sb2X3 films, and the discovery and passivation of unusual and complex defects. Finally, we propose several strategies for future efficiency improvement.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"132 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125794699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A perspective on electrochemical conversion of CO2 to multicarbon chemicals in ionic liquids-based electrolytes 离子液体电解质中CO2转化为多碳化合物的电化学研究进展

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20230006

Wenpeng Ni, Shiguo Zhang

{"title":"A perspective on electrochemical conversion of CO2 to multicarbon chemicals in ionic liquids-based electrolytes","authors":"Wenpeng Ni, Shiguo Zhang","doi":"10.54227/elab.20230006","DOIUrl":"https://doi.org/10.54227/elab.20230006","url":null,"abstract":"Carbon dioxide electroreduction (CRR) is a promising technology for both intermittent energy storage and emissions mitigation, but it faces challenges such as relatively high overpotential and poor selectivity. Introducing ionic liquids (ILs) into the CRR system has shown impressive activity for CO production, even in electrocatalysts that are primarily active for hydrogen evolution in aqueous electrolytes. However, converting CO2 to high-value C2+ chemicals in IL electrolytes suffers from limitations in *CO coverage, proton accessibility, and specific stabilization effects on *COOH. In this perspective, we emphasize the modification of the steady-state adsorption of *CO and other intermediates and the proton supply to enhance the CO2-to-C2+ conversion. More efforts need to be devoted to electrolyte modulation, involving the functional ILs design, the proton sources, and inorganic additive screening. It is also necessary to develop a descriptor for C2+ selectivity, explore the dynamic evolution of catalyst upon exposure to ILs, and construct novel catalyst/ILs hybrids. Furthermore, developing a molecular understanding of the electrode/ILs interface and the bulk phase of IL-containing electrolytes is essential for designing an efficient electrochemical system for C2+ generation.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129973268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A perspective on low-temperature electrolytes for sodium-ion batteries 钠离子电池低温电解质研究进展

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20230003

Shaohua Guo

引用次数: 0

Interface Engineering-Inspired Electron Regulation in Pt/Pd Hetero-Metallene for Methanol-Assisted Hydrogen Evolution 基于界面工程的Pt/Pd杂金属烯甲醇助氢电子调控

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220005

Hongjing Wang

{"title":"Interface Engineering-Inspired Electron Regulation in Pt/Pd Hetero-Metallene for Methanol-Assisted Hydrogen Evolution","authors":"Hongjing Wang","doi":"10.54227/elab.20220005","DOIUrl":"https://doi.org/10.54227/elab.20220005","url":null,"abstract":"The small molecule oxidation reaction instead of oxygen evolution reaction coupled with hydrogen evolution reaction can greatly reduce the reaction overpotential of electrochemical water splitting, which is a very efficient and energy-saving hydrogen evolution strategy. Herein, we report an interface engineering constructed two-dimensional ultrathin curled Pt/Pd hetero-metallene for efficient electrocatalytic hydrogen evolution assisted by methanol. The thin-sheet structure of Pt/Pd hetero-metallene provides a large specific surface area and exposes numerous surface atoms that could act as reactive sites, thus accelerating the reaction mass transfer process. More importantly, the constructed Pt/Pd hetero-metallene possesses abundant Pt/Pd heterointerface, which can maximize the strong metal-metal interaction and increase the utilization of metal atoms, thereby optimizing the adsorption and activation of reactants during the reaction. Pt/Pd hetero-metallene can produce hydrogen stably and efficiently in 1 M KOH + 1 M CH3OH, and the voltage only needs 0.83 V at @100 mA cm-2 when used in electrocatalytic hydrogen evolution, which is much lower than the voltage required for the traditional electrochemical water splitting process (1.94 V). This work not only provides a powerful approach to rational design and construction of hetero-metallene through interface engineering, but also builds a bridge between hetero-metallene and methanol-assisted hydrogen evolution.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"311 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133749768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Green organic conversion with H2O2: challenges and opportunities H2O2绿色有机转化:挑战与机遇

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20230011

Zhaosheng Li

{"title":"Green organic conversion with H2O2: challenges and opportunities","authors":"Zhaosheng Li","doi":"10.54227/elab.20230011","DOIUrl":"https://doi.org/10.54227/elab.20230011","url":null,"abstract":"Hydrogen peroxide (H2O2), as a green oxidant, plays an important role in organic conversion reactions, such as cyclohexanone ammoximation and olefin oxidation. However, the production of H2O2 relies on the anthraquinone process, which is costly, complex, and typically done on clustered production. Furthermore, H2O2 is prone to decomposition or the generation of ineffective byproducts and unfavorable reactive groups, leading to low efficiency and waste of resources. Achieving the widespread application of H2O2 in green organic conversion reactions requires efficient utilization and low-cost on-site production of H2O2. Effective activation of H2O2 is the key to realizing efficient utilization of H2O2, which has been widely recognized. In addition, some emerging methods of on-site production of H2O2 are convenient and low-cost, which may gradually overcome the shortcomings of traditional methods in the future. In this review, we introduce common organic conversion reactions with H2O2, summarize the challenges of H2O2 activation, and review the progress on electrochemical, photoelectrochemical or photochemical H2O2 production. We also discuss the vision of organic conversion reactions via in-situ-generated H2O2.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"46 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131687682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ruthenium-based metal oxide for acidic oxygen evolution reaction: advances and challenges 用于酸性析氧反应的钌基金属氧化物:进展与挑战

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220018

Changpeng Liu, Wei Xing

{"title":"Ruthenium-based metal oxide for acidic oxygen evolution reaction: advances and challenges","authors":"Changpeng Liu, Wei Xing","doi":"10.54227/elab.20220018","DOIUrl":"https://doi.org/10.54227/elab.20220018","url":null,"abstract":"Utilizing proton exchange membrane water electrolyzers (PEMWE) to produce hydrogen is a promising way to provide clean energy, reduce carbon emissions and improve the utilization rate of renewable energy. The slow kinetics of oxygen evolution reaction (OER) at the anode is considered to be the crucial obstacle to its conversion efficiency. Due to the strong acidic and oxidizing environment of OER reaction, it is essential to develop electrocatalyst with high activity and high stability to reduce the high kinetic barrier of OER and improve the reaction rate. Among them, Ru-based catalysts have outstanding catalytic activity and relatively low price, which has aroused great interest in its practical application. Many Ru-based catalysts with superior performance have been developed in recent years. In this review, we mainly focus on the development of Ru-based catalysts towards OER, with OER mechanisms discussed first, followed by discussion in the factors affecting the catalytic performance, and then introduce current research progress of Ru-based catalysts under acidic conditions. We finally conclude the prospect of the development direction of Ru-based catalysts in the future, hopefully guiding further development of Ru-based catalysts towards real world operation.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127434706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Perspective on the Critical Design Criteria for Anode-free Li Metal Batteries 无阳极锂金属电池关键设计标准的展望

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220015

Shouyi Yuan, Yonggang Wang

引用次数: 0