ACS Energy Letters 最新文献

筛选
英文 中文
Rationalizing Light-Induced Phase Segregation Reversal by Halide Oxidation and Diffusion in Mixed Halide Perovskites 混合卤化物钙钛矿中卤化物氧化和扩散光诱导相偏析逆转的合理化
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2025-01-22 DOI: 10.1021/acsenergylett.4c03073
Nuerbiya Aihemaiti, Siying Peng
{"title":"Rationalizing Light-Induced Phase Segregation Reversal by Halide Oxidation and Diffusion in Mixed Halide Perovskites","authors":"Nuerbiya Aihemaiti, Siying Peng","doi":"10.1021/acsenergylett.4c03073","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c03073","url":null,"abstract":"Lead halide perovskites are one of the most promising materials as active layers of optoelectronic devices. Phase segregation under illumination in mixed halide perovskites is one of the major issues in stable device operation. Herein, we rationalize illumination power dependent phase segregation phenomena, including two thresholds between which phase segregation occurs, and the reversal of phase segregation. Our experimental observation combining confocal photoluminescence mapping with in situ Raman spectroscopy supports the halide oxidation model. We observed phase segregation beyond the illuminated area, while the illuminated area remained mixed. Reversal of phase segregation under illumination was also observed. We propose that the spatial distribution of phase segregation is driven by halide oxidation and diffusion of the products through mass flow, as verified by light- and spatial-dependent lattice halide vibrations. Our insights into phase segregation may provide new perspectives for manipulating phase segregation by local light intensity for dynamically tunable optoelectronics.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"28 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143019995","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
Electrochemical Grain Refinement Enables High-Performance Lithium–Aluminum-Anode-Based All-Solid-State Batteries 电化学晶粒细化使高性能锂铝阳极全固态电池成为可能
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2025-01-22 DOI: 10.1021/acsenergylett.4c03250
Lun Zhang, Xuedong Zhang, Baiyu Guo, Zhaoyu Rong, Zhihao Yan, Bo Wang, Menglin Li, Zhenyu Wang, Lingyun Zhu, Qiao Huang, Yongfu Tang, Jianyu Huang
{"title":"Electrochemical Grain Refinement Enables High-Performance Lithium–Aluminum-Anode-Based All-Solid-State Batteries","authors":"Lun Zhang, Xuedong Zhang, Baiyu Guo, Zhaoyu Rong, Zhihao Yan, Bo Wang, Menglin Li, Zhenyu Wang, Lingyun Zhu, Qiao Huang, Yongfu Tang, Jianyu Huang","doi":"10.1021/acsenergylett.4c03250","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c03250","url":null,"abstract":"Lithium–aluminum (Li<sub><i>x</i></sub>Al, <i>x</i> = the molar ratio of Li to Al), an important alloy anode with a specific capacity over 2 times higher than that of the carbon anode used in commercial liquid electrolyte lithium-ion batteries (LELIBs), has been proven to be a failure in LELIBs due to the notorious pulverization phenomenon. However, whether or not such pulverization persists in all solid state lithium batteries (ASSLBs) remains unclear. Herein, we show that pulverization of the Li<sub><i>x</i></sub>Al anode is mitigated in ASSLBs due to the applied external stack pressure, thus preventing the mechanical failure of the Li<sub><i>x</i></sub>Al anode in ASSLBs. Moreover, electron microscopy investigation reveals that, instead of pulverization, electrochemomechanical stress induces 2 orders of magnitude grain size reduction from a few tens of microns to a few hundred nanometers. The grain-refined Li<sub><i>x</i></sub>Al anode facilitates lithium ion transport, which improves the rate performance and specific capacity of the Li<sub><i>x</i></sub>Al anode. Consequently, the assembled single-crystal LiNi<sub>0.83</sub>Co<sub>0.12</sub>Mn<sub>0.05</sub>O<sub>2</sub>|Li<sub>10</sub>Si<sub>0.3</sub>PS<sub>6.7</sub>Cl<sub>1.8</sub>|Li<sub>0.4</sub>Al ASSLBs reach 2000 cycles with a capacity retention of 100% at 3C (13.9 mA/cm<sup>2</sup>, room temperature), at a high areal capacity of 2.1 mAh/cm<sup>2</sup>. The all-solid pouch cell with a Li<sub><i>x</i></sub>Al anode can reach an energy density of 219 Wh kg<sup>–1</sup> based on the total mass of the cell. These results demonstrate the prospect of implementing the Al-based anode in ASSLBs for practical energy storage applications.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"49 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143019996","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
Key Materials and Fabrication Strategies for High-Performance Dye-Sensitized Solar Cells: Comprehensive Comparison and Perspective 高性能染料敏化太阳能电池的关键材料与制造策略:综合比较与展望
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2025-01-22 DOI: 10.1021/acsenergylett.4c03579
Haoran Zhou, Md Aftabuzzaman, Masud, Sung Ho Kang, Hwan Kyu Kim
{"title":"Key Materials and Fabrication Strategies for High-Performance Dye-Sensitized Solar Cells: Comprehensive Comparison and Perspective","authors":"Haoran Zhou, Md Aftabuzzaman, Masud, Sung Ho Kang, Hwan Kyu Kim","doi":"10.1021/acsenergylett.4c03579","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c03579","url":null,"abstract":"For more than three decades, dye-sensitized solar cells (DSSCs) have attracted numerous researchers as viable alternatives in photovoltaic technology. It offers several advantages, such as using eco-friendly materials, inexpensive processing techniques, indoor photovoltaic potentials, and integrating photovoltaics into building applications. Nevertheless, DSSCs will require further development in manufacturing methods and materials to remain competitive with other thin-film solar technologies that offer high photovoltaic efficiency. It is essential to give an overview of the latest developments in this area and highlight the primary elements required for realizing high-performance technologies, such as photoanode modification, dye formulation, and electrolyte optimization. Recent advancements have shown promising improvements in DSSCs with copper-based electrolytes, and integrating new interface materials like preadsorbents or postadsorbents has also opened new possibilities for DSSCs. Here, we comprehensively compare and discuss the key materials and device fabrication processes for high-performance DSSCs and present future research perspectives.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"50 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143019998","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
Unveiling the Impacts of Charge/Discharge Rate on the Cycling Performance of Li-Metal Batteries 揭示充放电速率对锂金属电池循环性能的影响
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2025-01-21 DOI: 10.1021/acsenergylett.4c03215
Yunya Zhang, Wurigumula Bao, Ethan Jeffs, Bin Liu, Bing Han, Weijie Mai, Xinyu Li, Weikang Li, Yun Xu, Bhargav Bhamwala, Alex Liu, Louis Ah, Kun Ryu, Ying Shirley Meng, Hong Gan
{"title":"Unveiling the Impacts of Charge/Discharge Rate on the Cycling Performance of Li-Metal Batteries","authors":"Yunya Zhang, Wurigumula Bao, Ethan Jeffs, Bin Liu, Bing Han, Weijie Mai, Xinyu Li, Weikang Li, Yun Xu, Bhargav Bhamwala, Alex Liu, Louis Ah, Kun Ryu, Ying Shirley Meng, Hong Gan","doi":"10.1021/acsenergylett.4c03215","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c03215","url":null,"abstract":"Lithium metal batteries (LMBs) offer superior energy density and power capability but face challenges in cycle stability and safety. This study introduces a strategic approach to improving LMB cycle stability by optimizing charge/discharge rates. Our results show that slow charging (0.2C) and fast discharging (3C) significantly improve performance, with a multilayer LMB retaining over 80% capacity after 1000 cycles. Fast discharge rates promote lithium plating beneath the SEI layer, suppressing its growth and improving Coulombic efficiency, whereas slow discharge rates facilitate lithium plating above the SEI, leading to SEI accumulation. We propose a rational hypothesis linking SEI conductivity and cycling conditions and introduce an intermittent pulse discharge protocol to emulate electric vehicle applications, further improving the stability. These optimized cycling strategies enhance the LMB lifespan, utility, and safety, paving the way for broader market adoption in the years ahead.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"33 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992560","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
Unlocking Ultrafast Diagnosis of Retired Batteries via Interpretable Machine Learning and Optical Fiber Sensors 通过可解释机器学习和光纤传感器解锁退役电池的超快速诊断
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2025-01-21 DOI: 10.1021/acsenergylett.4c03054
Taolue Zhang, Ruifeng Tan, Pinxi Zhu, Tong-Yi Zhang, Jiaqiang Huang
{"title":"Unlocking Ultrafast Diagnosis of Retired Batteries via Interpretable Machine Learning and Optical Fiber Sensors","authors":"Taolue Zhang, Ruifeng Tan, Pinxi Zhu, Tong-Yi Zhang, Jiaqiang Huang","doi":"10.1021/acsenergylett.4c03054","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c03054","url":null,"abstract":"Retired batteries are of great economic and environmental importance, which are indispensable considerations in the life cycle of lithium-ion batteries. However, existing methods for evaluating retired batteries are time- and resource-consuming, hindering efficient screening for later recycling or reuse. Herein, combining optical fiber sensors and interpretable machine learning (ML), we establish a data-driven framework for retired battery datasets with 265 cells of different chemistries (LiFePO<sub>4</sub>/graphite, LiMn<sub>2</sub>O<sub>4</sub>/graphite) and achieve ultrafast state of health diagnosis within 3 min, offering mean absolute errors of 1.17% and 2.78%, respectively. The proposed data-driven framework identifies the salient regions in the time-resolved multivariable data and helps to uncover underlying thermodynamic/kinetic aging mechanisms. We also demonstrate the incorporated thermal information obtained via optical fibers complements voltage signals by improving prediction accuracy and antinoise ability. This work not only showcases the potential of battery sensing in retired battery diagnosis but also unlocks the unexplored synergy between sensing and interpretable ML for diverse battery applications.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"71 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990757","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
A Conversion Aluminum Fluoride Nanowire Interlayer for Stable Lithium Metal Batteries 用于稳定金属锂电池的转换铝氟化物纳米线夹层
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2025-01-20 DOI: 10.1021/acsenergylett.4c03216
Wenbin Fu, Kaixi Chen, Fujia Wang, Yice Wang, Evan Wilson, Vismay Chandra, Doyoub Kim, Gleb Yushin
{"title":"A Conversion Aluminum Fluoride Nanowire Interlayer for Stable Lithium Metal Batteries","authors":"Wenbin Fu, Kaixi Chen, Fujia Wang, Yice Wang, Evan Wilson, Vismay Chandra, Doyoub Kim, Gleb Yushin","doi":"10.1021/acsenergylett.4c03216","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c03216","url":null,"abstract":"The use of a lithium metal anode enables batteries with significantly higher energy density, but at the expense of the growth of lithium dendrites that trigger internal short circuits, induce safety risks, and reduce cycle stability. To address this challenge, here, we report the design of an aluminum fluoride nanowire membrane as a conversion interlayer to regulate lithium deposition for significantly more stable and safe lithium metal batteries. The interlayer generates a LiF-rich solid electrolyte interphase and alloy nanoparticles in contact with lithium to offer active sites guiding lithium nucleation, regulating lithium deposition, and increasing Coulombic efficiencies. With such an interlayer, lithium metal full cells show significantly improved stability compared to those with bare Cu, when paired with a LiFePO<sub>4</sub> or LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> cathode. Our results indicate that using an aluminum fluoride interlayer can be a promising strategy in realizing lithium metal batteries with high specific energy density.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"30 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990758","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
Comparing Advanced Bipolar Membranes for High-Current Electrodialysis and Membrane Electrolysis 先进双极膜在大电流电渗析和膜电解中的比较
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2025-01-18 DOI: 10.1021/acsenergylett.4c03538
Olivia T. Vulpin, James B. Mitchell, Lihaokun Chen, Jeonghoon Lim, Sayantan Sasmal, Nathan G. Price, Sam R. Jarvis, Shannon W. Boettcher
{"title":"Comparing Advanced Bipolar Membranes for High-Current Electrodialysis and Membrane Electrolysis","authors":"Olivia T. Vulpin, James B. Mitchell, Lihaokun Chen, Jeonghoon Lim, Sayantan Sasmal, Nathan G. Price, Sam R. Jarvis, Shannon W. Boettcher","doi":"10.1021/acsenergylett.4c03538","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c03538","url":null,"abstract":"Advanced bipolar membranes (BPMs) with low water-dissociation overpotential (η<sub>wd</sub>) may enable new electrochemical technologies for electrolysis, fuel cells, acid–base synthesis, brine remediation, lithium-battery recycling, and cement production. However, these advanced BPMs have only been demonstrated in BPM water electrolysis (BPMWE) configurations where the BPM is under static compression by the porous-transport layers. It is important to study these BPMs in applications like electrodialysis where large degrees of static compression are not possible. We present a BPM electrodialysis (BPMED) platform to measure water-dissociation overpotential (η<sub>wd</sub>) and compare BPMWE and BPMED systems. We show advanced BPMs with half the η<sub>wd</sub> compared to commercial BPMs for BPMED while maintaining ∼90% current efficiency from 0.05–0.5 A cm<sup>–2</sup>. The BPMED η<sub>wd</sub> values are, however, about 0.2 V higher at 0.5 A cm<sup>–2</sup> than those for BPMWE. Regardless, these results show that BPMs developed and optimized in BPMWE applications are well-suited for next-generation high-current-density BPMED technologies.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"30 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142989007","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
Uniform Sub-5 nm Crystalline Nickel-Based Heterojunctions for Overall Water Splitting Electrocatalysis 用于整体水分离电催化的 5 纳米以下均匀结晶镍基异质结
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2025-01-17 DOI: 10.1021/acsenergylett.4c03097
Yuanyuan Wang, Rui Yin, Lei Yuan, Xingmei Guo, Xiangjun Zheng, Qianqian Fan, Zhongyao Duan, Yuanjun Liu, Junhao Zhang, Shenglin Xiong
{"title":"Uniform Sub-5 nm Crystalline Nickel-Based Heterojunctions for Overall Water Splitting Electrocatalysis","authors":"Yuanyuan Wang, Rui Yin, Lei Yuan, Xingmei Guo, Xiangjun Zheng, Qianqian Fan, Zhongyao Duan, Yuanjun Liu, Junhao Zhang, Shenglin Xiong","doi":"10.1021/acsenergylett.4c03097","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c03097","url":null,"abstract":"Exploring a general method for constructing uniform heterostructures with sub-5 nm crystallites and dense interfaces is crucial yet challenging for advancing water electrocatalysis. Herein, a bottom-up cocrystallization strategy, involving in situ transformation of amorphous Ni–P through gas–solid reactions, is proposed to synthesize a series of nickel-based heterojunctions on carbon cloth (CC). Thereinto, interface-wealthy NiS<sub>2</sub>-Ni<sub>2</sub>P/CC with densely packed 3–4 nm crystallites demonstrates superb catalytic performance for both hydrogen and oxygen evolution. The electrolyzer merely requires cell voltages of 1.79 and 1.89 V to propel overall water splitting currents of 200 and 400 mA cm<sup>–2</sup>, respectively, outperforming the vast majority of reported nickel-based heterojunctions. Theoretical calculations reveal that charge redistribution and electronic structure modulation optimize the hydrogen and oxygen evolution pathways at the NiS<sub>2</sub> and Ni<sub>2</sub>P sides of the interfaces, respectively. Moreover, uniform hybridization with densely distributed heterointerfaces offers abundant active sites for electrocatalysis, pioneering an extendable approach for constructing advanced heterojunction catalysts for green hydrogen production.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"27 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142989008","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
Toward Optimization of Polymer Electrolytes by Electrochemical Characterization: Poly(pentyl malonate) versus Poly(ethylene oxide) 用电化学表征优化聚合物电解质:聚丙二酸戊酯与聚环氧乙烷
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2025-01-16 DOI: 10.1021/acsenergylett.4c03525
Jaeyong Lee, Zach J. Hoffman, Saheli Chakraborty, Vivaan Patel, Nitash P. Balsara
{"title":"Toward Optimization of Polymer Electrolytes by Electrochemical Characterization: Poly(pentyl malonate) versus Poly(ethylene oxide)","authors":"Jaeyong Lee, Zach J. Hoffman, Saheli Chakraborty, Vivaan Patel, Nitash P. Balsara","doi":"10.1021/acsenergylett.4c03525","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c03525","url":null,"abstract":"Ion transport in two polymer electrolytes, poly(ethylene oxide) (PEO) and poly(pentyl malonate) (PPM), mixed with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) is studied in the vicinity of the limiting current. The experimental measurements are in quantitative agreement with theoretical predictions based on the concentrated solution theory. The properties of two electrolytes are compared using a new plot wherein the length-normalized limiting current, <i>i</i><sub>lim</sub><i>L</i>, is plotted as a function of the length-normalized potential drop, Φ<sub>lim</sub>/<i>L</i>, in symmetric cells with electrolyte thickness, <i>L</i>. We propose that electrolyte design should aim to obtain the largest values of <i>i</i><sub>lim</sub><i>L</i> and the smallest values of Φ<sub>lim</sub>/<i>L</i>. Using this criterion, PPM/LiTFSI is a better polymer electrolyte than PEO/LiTFSI. We hope that PPM/LiTFSI will serve as a benchmark for developing next-generation polymer electrolytes.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"127 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142986222","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
Selective and Stable Ethanol Synthesis via Electrochemical CO2 Reduction in a Solid Electrolyte Reactor 固体电解质反应器中电化学CO2还原选择性稳定乙醇合成
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2025-01-15 DOI: 10.1021/acsenergylett.4c03091
Tae-Ung Wi, Zachary H Levell, Shaoyun Hao, Ahmad Elgazzar, Peng Zhu, Yuge Feng, Feng-Yang Chen, Wei Ping Lam, Mohsen Shakouri, Yuanyue Liu, Haotian Wang
{"title":"Selective and Stable Ethanol Synthesis via Electrochemical CO2 Reduction in a Solid Electrolyte Reactor","authors":"Tae-Ung Wi, Zachary H Levell, Shaoyun Hao, Ahmad Elgazzar, Peng Zhu, Yuge Feng, Feng-Yang Chen, Wei Ping Lam, Mohsen Shakouri, Yuanyue Liu, Haotian Wang","doi":"10.1021/acsenergylett.4c03091","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c03091","url":null,"abstract":"Electrochemical CO<sub>2</sub> reduction to ethanol faces challenges such as low selectivity, a product mixture with liquid electrolyte, and poor catalyst/reactor stability. Here, we developed a grain-rich zinc-doped Cu<sub>2</sub>O precatalyst that presented a high ethanol Faradaic efficiency of over 40% under a current density of 350 mA·cm<sup>–2</sup>. Our density functional theory (DFT) simulation suggested that Zn atoms inside the structure have a greater carbophilicity than the Cu atoms to help facilitate *CHCHO formation, a key reaction intermediate toward ethanol instead of other C<sub>2</sub> products. A high Faradaic efficiency ratio between ethanol and ethylene (FE<sub>EtOH</sub>/FE<sub>C2H4</sub>) reached 2.34 in the zinc-doped Cu<sub>2</sub>O precatalyst, representing an over 4-fold improvement compared to bare Cu<sub>2</sub>O precatalyst. By integrating this Cu-based catalyst into a porous solid electrolyte (PSE) reactor with a salt-managing design, we achieved stable ethanol production for over 180 h under a current density of 250 mA·cm<sup>–2</sup> while maintaining ethanol selectivity at ∼30%.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"106 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142981170","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信