Energy & Environmental Science最新文献

Data-Driven Pursuit of Electrochemically Stable 2D Materials with Basal Plane Activity toward Oxygen Electrocatalysis 基于数据的二维基面氧电催化材料电化学稳定性研究

Energy & Environmental Science Pub Date : 2023-01-01 DOI: 10.1039/d3ee01723k

Xiangyu Guo, Shengli Zhang, Liangzhi Kou, C. Yam, T. Frauenheim, Zhongfang Chen, Shiping Huang

引用次数: 4

Insensitive cation effect on single-atom Ni catalyst allows selective electrochemical conversion of captured CO2 in universal media 单原子Ni催化剂的不敏感阳离子效应允许捕获的CO2在通用介质中选择性电化学转化

Energy & Environmental Science Pub Date : 2022-02-18 DOI: 10.21203/rs.3.rs-1310811/v1

Jae Hyung Kim, Hyun-Ju Jang, W. Choi, H. Yun, Eunbyoul Lee, Dongjin Kim, Ji Won Kim, Si Young Lee, Y. Hwang

{"title":"Insensitive cation effect on single-atom Ni catalyst allows selective electrochemical conversion of captured CO2 in universal media","authors":"Jae Hyung Kim, Hyun-Ju Jang, W. Choi, H. Yun, Eunbyoul Lee, Dongjin Kim, Ji Won Kim, Si Young Lee, Y. Hwang","doi":"10.21203/rs.3.rs-1310811/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-1310811/v1","url":null,"abstract":"\u0000 The direct electroconversion of captured CO2 is attracting attention as an alternative to the current energy-demanding CO2 separation processes. In conventional capturing media, the reaction inevitably takes place in the presence of bulky ammonium, leading to steric hindrance and low CO selectivity. Here, for the first time, we present a single atom Ni catalyst (Ni–N/C) exhibits superior activity for the electroconversion of captured CO2, without the need for additives. In a CO2-captured monoethanolamine-based electrolyte, Ni–N/C achieves a notably high CO selectivity of 64.9% at −50 mA cm−2 integrated with a membrane electrode assembly. We also propose that Ni–N/C demonstrates weak cation sensitivity to the CO2 reduction reaction, maintaining high CO production activity in various capturing solutions, while Ag shows a gradual decrease depending on the bulkiness of the amine. These trends provide insights into selective catalyst design for the electroconversion of captured CO2 in universal media.","PeriodicalId":11674,"journal":{"name":"Energy & Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81679194","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: 6

Quantitative spatiotemporal mapping of thermal runaway propagation rates in lithium-ion cells using cross-correlated Gabor filtering 使用交叉相关Gabor滤波的锂离子电池热失控传播速率的定量时空映射

Energy & Environmental Science Pub Date : 2021-11-02 DOI: 10.33774/chemrxiv-2021-jpp7l

Anand N. P. Radhakrishnan, M. Buckwell, M. Pham, D. Finegan, A. Rack, G. Hinds, D. Brett, P. Shearing

{"title":"Quantitative spatiotemporal mapping of thermal runaway propagation rates in lithium-ion cells using cross-correlated Gabor filtering","authors":"Anand N. P. Radhakrishnan, M. Buckwell, M. Pham, D. Finegan, A. Rack, G. Hinds, D. Brett, P. Shearing","doi":"10.33774/chemrxiv-2021-jpp7l","DOIUrl":"https://doi.org/10.33774/chemrxiv-2021-jpp7l","url":null,"abstract":"Abuse testing of lithium-ion batteries is widely performed in order to develop new safety standards and strategies. However, testing methodologies are not standardised across the research community, especially with failure mechanisms being inherently difficult to reproduce. High-speed X-ray radiography is proven to be a valuable tool to capture events occurring during cell failure, but the observations made remain largely qualitative. We have therefore developed a robust image processing toolbox that can quantify, for the first time, the rate of propagation of battery failure mechanisms revealed by high-speed X-ray radiography. Using Gabor filter, the toolbox selectively tracks the electrode structure at the onset of failure. This facilitated the estimation of the displacement of electrodes undergoing abuse via nail penetration, and also the tracking of objects, such as the nail, as it propagates through a cell. Further, by cross-correlating the Gabor signals, we have produced practical, illustrative spatiotemporal maps of the failure events. From these, we can quantify the propagation rates of electrode displacement prior to the onset of thermal runaway. The highest recorded acceleration (≈ 514 mm s-2) was when a nail penetrated a cell radially (perpendicular to the electrodes) as opposed to axially (parallel to the electrodes). The initiation of thermal runaway was also resolved in combination with electrode displacement, which occurred at a lower acceleration (≈ 108 mm s-2). Our assistive toolbox can also be used to study other types of failure mechanisms, extracting otherwise unattainable kinetic data. Ultimately, this tool can be used to not only validate existing theoretical mechanical models, but also standardise battery failure testing procedures.","PeriodicalId":11674,"journal":{"name":"Energy & Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88531590","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: 1

Optimized Carrier Extraction at Interfaces for 23.6% Efficient Tin–Lead Perovskite Solar Cells 23.6%高效锡铅钙钛矿太阳能电池界面载流子萃取优化

Energy & Environmental Science Pub Date : 2021-07-24 DOI: 10.21203/RS.3.RS-727823/V1

Shuaifeng Hu, Kento Otsuka, R. Murdey, Tomoya Nakamura, Minh Anh Truong, Takumi Yamada, Taketo Handa, K. Matsuda, Kyohei Nakano, A. Sato, K. Marumoto, K. Tajima, Y. Kanemitsu, A. Wakamiya

{"title":"Optimized Carrier Extraction at Interfaces for 23.6% Efficient Tin–Lead Perovskite Solar Cells","authors":"Shuaifeng Hu, Kento Otsuka, R. Murdey, Tomoya Nakamura, Minh Anh Truong, Takumi Yamada, Taketo Handa, K. Matsuda, Kyohei Nakano, A. Sato, K. Marumoto, K. Tajima, Y. Kanemitsu, A. Wakamiya","doi":"10.21203/RS.3.RS-727823/V1","DOIUrl":"https://doi.org/10.21203/RS.3.RS-727823/V1","url":null,"abstract":"\u0000 Carrier extraction is a key issue which limits the efficiency of perovskite solar cells. In this work, carrier extraction is improved by modifying the perovskite layers with a combination of ethylenediammonium diiodide post-treatment and glycine hydrochloride additive. Ethylenediammonium dications primarily affect the top surface of the perovskite films, while glycinium cations preferentially accumulate at the bottom region. The top and bottom interface modifications improve the crystallinity of the perovskite films and lower the density of electrical traps via surface passivation effects, resulting in long charge carrier lifetimes. The orientated aggregation of the ethylenediammonium and glycinium cations at the charge collection interfaces result in the formation of surface dipoles, which facilitate charge extraction. The performance of the treated solar cell devices also increases. The fill factor rose to 0.82, and the power conversion efficiency reaches 23.6% (23.1% certified). The open circuit voltage reaches 0.91 V, just 0.06 V below the Shockley–Queisser limit. The unencapsulated devices also show improved stability under AM 1.5G, retaining over 80% of the initial efficiency after 200 h continuous operation in inert atmosphere. Our strategy is also successfully applied to centimeter-scale devices, with efficiencies up to 21.0%.","PeriodicalId":11674,"journal":{"name":"Energy & Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75290294","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: 36

Unlocking the performance of ternary metal (hydro)oxide amorphous catalysts via data-driven active-site engineering 通过数据驱动的活性位点工程解锁三元金属(氢)氧化物非晶催化剂的性能

Energy & Environmental Science Pub Date : 1900-01-01 DOI: 10.1039/d3ee01981k

Doudou Zhang, Haobo Li, Haijao Lu, Zongyou Yin, Z. Fusco, Asim Riaz, Karsten Reuter, Kylie Catchpole, S. Karuturi

引用次数: 0

Correlating Miscibility, Mechanical Parameters, and Stability of Ternary Polymer Blends for High-Performance Solar Cells 高性能太阳能电池用三元聚合物共混物的相关混相、力学参数和稳定性

Energy & Environmental Science Pub Date : 1900-01-01 DOI: 10.1039/d3ee01683h

Kangkang Zhou, Kaihu Xian, Ruijie Ma, Junwei Liu, Mengyuan Gao, Saimeng Li, Tao Liu, Yu Chen, Yanhou Geng, Long Ye

引用次数: 0

Metal-iodine batteries: Achievements, challenges, and future 金属碘电池:成就、挑战与未来

Energy & Environmental Science Pub Date : 1900-01-01 DOI: 10.1039/d3ee01677c

Leiqian Zhang, Hele Guo, Wei Zong, Yunpeng Huang, Jiajia Huang, Guanjie He, Tianxi Liu, Johan Hofkens, Feili Lai

引用次数: 0

Inexpensive Electrolyte with Double-site Hydrogen Bonding and Regulated Zn2+ Solvation Structure for Aqueous Zn-Ion Batteries Capable of High-rate and Ultra-long Low-Temperature Operation 具有双氢键和可调节Zn2+溶剂化结构的廉价电解质，可用于高倍率和超长低温运行的锌离子水电池

Energy & Environmental Science Pub Date : 1900-01-01 DOI: 10.1039/d3ee01741a

Chaolin You, Ruoyu Wu, Xinhai Yuan, Jilei Ye, Lili Liu, L. Fu, Peng Han, Yuping Wu

引用次数: 1

Over 28% Efficiency Perovskite/Cu(InGa)Se2 Tandem Solar Cells: Highly Efficient Sub-cells and Their Bandgap Matching 超过28%效率的钙钛矿/Cu(InGa)Se2串联太阳能电池:高效亚电池及其带隙匹配

Energy & Environmental Science Pub Date : 1900-01-01 DOI: 10.1039/d3ee00869j

Xinxing Liu, Junjun Zhang, Liting Tang, Junbo Gong, Wang Li, Zexin Tu, Yanyan Li, Ruiming Li, Xuzhi Hu, C.C. Shen, He Wang, Zhiping Wang, Qianqian Lin, G. Fang, Sheng Wang, Chang Liu, Zengming Zhang, Jianmin Li, Xudong Xiao

引用次数: 0

Electrochemical Reduction of Carbon Dioxide to Multicarbon (C2+) Products: Challenges and Perspectives 电化学还原二氧化碳生成多碳(C2+)产物:挑战与展望

Energy & Environmental Science Pub Date : 1900-01-01 DOI: 10.1039/d3ee00964e

Huabin Zhang, Kuo‐Wei Huang, F. Raziq, Jinhua Ye, Hong Pang, Bin Chang, Sibo Wang

引用次数: 5

Energy &amp; Environmental Science最新文献

Energy & Environmental Science最新文献