ACS Energy Letters 最新文献_第9页

Molecular Structure Optimization of Fluorinated Ether Electrolyte for All Temperature Fast Charging Lithium-Ion Battery

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-12-03 DOI: 10.1021/acsenergylett.4c01999

Peiyuan Ma, Cindy Xue, Ke-Hsin Wang, Priyadarshini Mirmira, Minh Canh Vu, Oscar Rivera, Chibueze V. Amanchukwu

{"title":"Molecular Structure Optimization of Fluorinated Ether Electrolyte for All Temperature Fast Charging Lithium-Ion Battery","authors":"Peiyuan Ma, Cindy Xue, Ke-Hsin Wang, Priyadarshini Mirmira, Minh Canh Vu, Oscar Rivera, Chibueze V. Amanchukwu","doi":"10.1021/acsenergylett.4c01999","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c01999","url":null,"abstract":"New electrolytes are needed to replace commercial carbonate electrolytes to enable a wider working temperature range, higher energy density, and faster charging of lithium-ion batteries (LIBs). Fluorinated diluents and solvents have shown promise in LIB electrolyte design, but most of them are considered per- and polyfluoroalkyl substances (PFAS) with significant environmental and health concerns. In this work, we design a family of non-PFAS, partially fluorinated ether solvents for LIB electrolytes. Through rational molecular design, an optimized rate capability is achieved by low viscosity, weak lithium-ion solvation, and high ion diffusivity. The optimized electrolytes enable a longer cycle life and better rate capability (up to 6 C) than previously reported fluorinated ethers or commercial carbonate electrolyte in graphite/LiNi0.8Mn0.1Co0.1O2 (Gr/NMC811) full cells. In addition, they also show an extended working temperature window with stable long-term cycling from 60 to −40 °C. This work shows a promising path to next generation batteries capable of extreme conditions without introducing PFAS concerns.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"28 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142760282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Durable Fuel Cell Electrode Design via Efficient Distribution of the Acidic Ionomer

IF 19.3 1区材料科学

ACS Energy Letters Pub Date : 2024-12-03 DOI: 10.1021/acsenergylett.4c0270410.1021/acsenergylett.4c02704

Nagappan Ramaswamy*, and , James Wortman,

{"title":"Durable Fuel Cell Electrode Design via Efficient Distribution of the Acidic Ionomer","authors":"Nagappan Ramaswamy*,  and , James Wortman, ","doi":"10.1021/acsenergylett.4c0270410.1021/acsenergylett.4c02704","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c02704https://doi.org/10.1021/acsenergylett.4c02704","url":null,"abstract":"Proton Exchange Membrane (PEM) fuel cell based electrochemical energy conversion systems represent a cleaner alternative to replace diesel-based internal combustion engines for heavy-duty vehicle (HDV) applications. Enhanced durability of the fuel cell cathode is critical to decrease the total cost of ownership (TCO) of the vehicles. The fuel cell cathode comprises a platinum-based catalyst and perfluorosulfonic (PFSA) ionomer, which is needed to aid in proton conductivity, but it also creates an acidic environment for platinum dissolution. Here we report a new surface treatment process of the catalyst using an organic fluorocarbon molecule to efficiently distribute the ionomer and decrease the level of Pt dissolution. This allows for a ∼2-fold decrease in ionomer usage without compromising proton conductivity (∼25 mS cm–1) due to the condensed, superprotonic ionomer pathways, thereby significantly improving platinum surface area retention. The structure of the electrode design and plausible reasons for the improved durability are discussed in detail here.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"9 12","pages":"6170–6177 6170–6177"},"PeriodicalIF":19.3,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142842076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Degradation, Intrinsic Microstrains, and Phase Structure Engineering in Lithium-Rich Oxide Cathode Materials

IF 19.3 1区材料科学

ACS Energy Letters Pub Date : 2024-12-03 DOI: 10.1021/acsenergylett.4c0298010.1021/acsenergylett.4c02980

Jiantuo Gan, Zhijun Wu, Chao Zheng, Fulai Qi, Chenchen Li, Liaona She, Yong Gao, Zhenglong Li, Wenping Sun, Yongfeng Liu, Mingxia Gao, Yinzhu Jiang, Shengnan He, Yaxiong Yang* and Hongge Pan*,

{"title":"Degradation, Intrinsic Microstrains, and Phase Structure Engineering in Lithium-Rich Oxide Cathode Materials","authors":"Jiantuo Gan, Zhijun Wu, Chao Zheng, Fulai Qi, Chenchen Li, Liaona She, Yong Gao, Zhenglong Li, Wenping Sun, Yongfeng Liu, Mingxia Gao, Yinzhu Jiang, Shengnan He, Yaxiong Yang* and Hongge Pan*, ","doi":"10.1021/acsenergylett.4c0298010.1021/acsenergylett.4c02980","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c02980https://doi.org/10.1021/acsenergylett.4c02980","url":null,"abstract":"Owing to anionic oxygen redox, cathode materials containing lithium-rich oxides (LROs) exhibit a large discharge capacity exceeding 300 mAh/g. This makes them viable choices for fabrication of cathode materials for future development of lithium-ion batteries with an energy density exceeding 500 Wh/kg. However, O redox is irreversible, resulting in voltage/capacity fade with precipitation of lattice oxygen during cycling. In this work, we review the mechanism of O redox, the role of intrinsic microstrains and potential defects in O redox, and strategies to achieve a reversible O redox through artificial engineering of these intrinsic microstrains and defects. We also evaluate facile and simple methods that are effective to modify these microstrains through engineering of phase distribution, phase structure, and morphology, as well as methods for modification of intrinsic defects, so that discharge capacity can also be improved. This work provides routes to achieve high-performance LROs with a long lifespan.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"9 12","pages":"6153–6169 6153–6169"},"PeriodicalIF":19.3,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142842239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Degradation, Intrinsic Microstrains, and Phase Structure Engineering in Lithium-Rich Oxide Cathode Materials

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-12-03 DOI: 10.1021/acsenergylett.4c02980

Jiantuo Gan, Zhijun Wu, Chao Zheng, Fulai Qi, Chenchen Li, Liaona She, Yong Gao, Zhenglong Li, Wenping Sun, Yongfeng Liu, Mingxia Gao, Yinzhu Jiang, Shengnan He, Yaxiong Yang, Hongge Pan

{"title":"Degradation, Intrinsic Microstrains, and Phase Structure Engineering in Lithium-Rich Oxide Cathode Materials","authors":"Jiantuo Gan, Zhijun Wu, Chao Zheng, Fulai Qi, Chenchen Li, Liaona She, Yong Gao, Zhenglong Li, Wenping Sun, Yongfeng Liu, Mingxia Gao, Yinzhu Jiang, Shengnan He, Yaxiong Yang, Hongge Pan","doi":"10.1021/acsenergylett.4c02980","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c02980","url":null,"abstract":"Owing to anionic oxygen redox, cathode materials containing lithium-rich oxides (LROs) exhibit a large discharge capacity exceeding 300 mAh/g. This makes them viable choices for fabrication of cathode materials for future development of lithium-ion batteries with an energy density exceeding 500 Wh/kg. However, O redox is irreversible, resulting in voltage/capacity fade with precipitation of lattice oxygen during cycling. In this work, we review the mechanism of O redox, the role of intrinsic microstrains and potential defects in O redox, and strategies to achieve a reversible O redox through artificial engineering of these intrinsic microstrains and defects. We also evaluate facile and simple methods that are effective to modify these microstrains through engineering of phase distribution, phase structure, and morphology, as well as methods for modification of intrinsic defects, so that discharge capacity can also be improved. This work provides routes to achieve high-performance LROs with a long lifespan.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"65 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142763343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Durable Fuel Cell Electrode Design via Efficient Distribution of the Acidic Ionomer

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-12-03 DOI: 10.1021/acsenergylett.4c02704

Nagappan Ramaswamy, James Wortman

引用次数: 0

Light-Driven Dehydrogenation of Propane Using Plasmonic Al@TiO2 Core–Shell Nanoparticles with Pt Single Atoms and Clusters

IF 19.3 1区材料科学

ACS Energy Letters Pub Date : 2024-12-02 DOI: 10.1021/acsenergylett.4c0271410.1021/acsenergylett.4c02714

Parmeet Dhindsa, Silvia Marino, Alexander Ahrens, Nolan Craft, Yigao Yuan, Lin Yuan, Aliyu Ahmad, Aaron Bayles, Hossein Robatjazi, Phillip Christopher, Peter Nordlander* and Naomi J. Halas*,

{"title":"Light-Driven Dehydrogenation of Propane Using Plasmonic Al@TiO2 Core–Shell Nanoparticles with Pt Single Atoms and Clusters","authors":"Parmeet Dhindsa, Silvia Marino, Alexander Ahrens, Nolan Craft, Yigao Yuan, Lin Yuan, Aliyu Ahmad, Aaron Bayles, Hossein Robatjazi, Phillip Christopher, Peter Nordlander* and Naomi J. Halas*, ","doi":"10.1021/acsenergylett.4c0271410.1021/acsenergylett.4c02714","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c02714https://doi.org/10.1021/acsenergylett.4c02714","url":null,"abstract":"Non-oxidative dehydrogenation of propane produces valuable propylene feedstocks and clean hydrogen fuel but, as an endothermic reaction, conventionally requires high temperatures. Here we report a photocatalyst that combines plasmonic Al@TiO2 core–shell nanoparticles with Pt single atomic active sites and clusters, capable of efficient dehydrogenation of propane into propylene with high selectivity using visible light illumination. Through strong metal–support interactions, the reducible TiO2 shell layer controls the nuclearity of the exposed Pt species, which in turn controls their photocatalytic reactivity. A comparison of reaction orders for the light-driven and the corresponding thermally driven process shows that hot carriers lower the apparent C−H activation energy barrier. Plasmon-generated hot carriers, along with the presence of low-coordination Pt sites, suppress further dehydrogenation of propylene and prevent coke formation that would otherwise occur on extended Pt islands. This work clearly demonstrates how plasmonics and single atom catalysts can be combined for high-specificity photocatalyst design.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"9 12","pages":"6047–6054 6047–6054"},"PeriodicalIF":19.3,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-Healing Significantly Improves Performances of NiO Sputtered n-i-p Perovskite Solar Cells

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-12-02 DOI: 10.1021/acsenergylett.4c02519

Susmita Basak, Sudeshna Ghosh, Debasmita Pariari, Teena Jangid, Tejmani Behera, Pablo P. Boix, Iván Mora-Seró, Arindam Chowdhury, D. D. Sarma, Shaibal K. Sarkar

{"title":"Self-Healing Significantly Improves Performances of NiO Sputtered n-i-p Perovskite Solar Cells","authors":"Susmita Basak, Sudeshna Ghosh, Debasmita Pariari, Teena Jangid, Tejmani Behera, Pablo P. Boix, Iván Mora-Seró, Arindam Chowdhury, D. D. Sarma, Shaibal K. Sarkar","doi":"10.1021/acsenergylett.4c02519","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c02519","url":null,"abstract":"Using radio frequency magnetron sputter deposition to apply metal oxide thin film as a hole transporting layer (HTL) onto a halide perovskite layer significantly compromises the device photovoltaic performance. Therefore, despite its economic advantages and scalability potential, this method is generally not favored. Herein, we identify the primary cause of this limitation as the loss of the organic moiety from the near-interface region during the sputter deposition of NiO onto the halide perovskite and the consequent generation of interfacial defects. Furthermore, we show that a self-healing process, without any external intervention, is able to significantly compensate for the adverse effects of the sputtering process, resulting in the device efficiency to 180–220% of its initial value and leading to the highest-ever power conversion efficiency (PCE) reported for an n-i-p device with a sputtered NiO HTL. Employing optical and impedance spectroscopies, we investigate the mechanism of this self-healing process, establishing the dynamics of the process to be thermally controlled and independent of the storage ambient, indicating the diffusion of the ionic species from the bulk to the interface as the driving force for the recovery.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"27 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142758359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-Healing Significantly Improves Performances of NiO Sputtered n-i-p Perovskite Solar Cells

IF 19.3 1区材料科学

ACS Energy Letters Pub Date : 2024-12-02 DOI: 10.1021/acsenergylett.4c0251910.1021/acsenergylett.4c02519

Susmita Basak, Sudeshna Ghosh, Debasmita Pariari, Teena Jangid, Tejmani Behera, Pablo P. Boix, Iván Mora-Seró, Arindam Chowdhury, D. D. Sarma* and Shaibal K. Sarkar*,

{"title":"Self-Healing Significantly Improves Performances of NiO Sputtered n-i-p Perovskite Solar Cells","authors":"Susmita Basak, Sudeshna Ghosh, Debasmita Pariari, Teena Jangid, Tejmani Behera, Pablo P. Boix, Iván Mora-Seró, Arindam Chowdhury, D. D. Sarma* and Shaibal K. Sarkar*, ","doi":"10.1021/acsenergylett.4c0251910.1021/acsenergylett.4c02519","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c02519https://doi.org/10.1021/acsenergylett.4c02519","url":null,"abstract":"Using radio frequency magnetron sputter deposition to apply metal oxide thin film as a hole transporting layer (HTL) onto a halide perovskite layer significantly compromises the device photovoltaic performance. Therefore, despite its economic advantages and scalability potential, this method is generally not favored. Herein, we identify the primary cause of this limitation as the loss of the organic moiety from the near-interface region during the sputter deposition of NiO onto the halide perovskite and the consequent generation of interfacial defects. Furthermore, we show that a self-healing process, without any external intervention, is able to significantly compensate for the adverse effects of the sputtering process, resulting in the device efficiency to 180–220% of its initial value and leading to the highest-ever power conversion efficiency (PCE) reported for an n-i-p device with a sputtered NiO HTL. Employing optical and impedance spectroscopies, we investigate the mechanism of this self-healing process, establishing the dynamics of the process to be thermally controlled and independent of the storage ambient, indicating the diffusion of the ionic species from the bulk to the interface as the driving force for the recovery.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"9 12","pages":"6117–6125 6117–6125"},"PeriodicalIF":19.3,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142842052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Incidental and Intentional Transformation: Transition Metal Pnictide and Chalcogenide Electrocatalysts for Alkaline Hydrogen Evolution

IF 19.3 1区材料科学

ACS Energy Letters Pub Date : 2024-12-02 DOI: 10.1021/acsenergylett.4c0218210.1021/acsenergylett.4c02182

Kenta Kawashima, Antony Elvin Fernando Milton, John S. Archer, Daniel T. Collins, Nicolas Lorenzo Serrat, Chikaodili E. Chukwuneke, Raul A. Marquez, Lettie A. Smith and C. Buddie Mullins*,

{"title":"Incidental and Intentional Transformation: Transition Metal Pnictide and Chalcogenide Electrocatalysts for Alkaline Hydrogen Evolution","authors":"Kenta Kawashima, Antony Elvin Fernando Milton, John S. Archer, Daniel T. Collins, Nicolas Lorenzo Serrat, Chikaodili E. Chukwuneke, Raul A. Marquez, Lettie A. Smith and C. Buddie Mullins*, ","doi":"10.1021/acsenergylett.4c0218210.1021/acsenergylett.4c02182","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c02182https://doi.org/10.1021/acsenergylett.4c02182","url":null,"abstract":"Transition metal pnictides and chalcogenides (X-ides) have been studied as promising electrocatalysts for the alkaline hydrogen evolution reaction (HER). These materials often undergo dynamic transformations, either on their surface or within their bulk, occurring “incidentally” during the HER or “intentionally” through electrochemical activation. Current research shows that X-ides can remain unchanged, undergo oxidation or reduction, or transform into different X-ides with reduced X-ogen (i.e., chalcogen or pnictogen) to metal ratios compared to their original forms. In this Focus Review, we explore examples of these transformations for incidental and intentional cases, identify gaps in current knowledge, discuss divergent views on the nature of catalytically active species, and provide recommendations for more accurate identification of the active HER species in future studies.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"9 12","pages":"6126–6143 6126–6143"},"PeriodicalIF":19.3,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142842646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Incidental and Intentional Transformation: Transition Metal Pnictide and Chalcogenide Electrocatalysts for Alkaline Hydrogen Evolution

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-12-02 DOI: 10.1021/acsenergylett.4c02182

Kenta Kawashima, Antony Elvin Fernando Milton, John S. Archer, Daniel T. Collins, Nicolas Lorenzo Serrat, Chikaodili E. Chukwuneke, Raul A. Marquez, Lettie A. Smith, C. Buddie Mullins

引用次数: 0