The strong-weak adsorption pair motif of cuFe bimetallic composite as an efficient catalyst for CO2 RR toward the C2product ethylene and ethanol

IF 4.1 3区化学 Q1 CHEMISTRY, ANALYTICAL

Journal of Electroanalytical Chemistry Pub Date : 2025-09-03 DOI:10.1016/j.jelechem.2025.119450

Yiman Kang , Honglin Zhu , Miao Shui

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Abstract

Currently, with the proposal of the dual‑carbon goal, the conversion of carbon dioxide has become a hot topic. Electro-catalysis occupies a prominent position in various catalytic technologies. Carbon dioxide reduction to C₂ product or C₂+ product is of great importance to the deep utilization of carbon dioxide. However, it is prone to disadvantages such as slow speed, low selectivity, and high over potential toward C₂+ products. Here, a neighboring strong weak metal atom pair strategy is proposed to design a new bimetallic catalyst aiming at significantly reduce the over potential of C₂+ products. The strong (Fe) and weak (cu) motif owns a negligible energy barrier of 0.06 eV from CO₂ to surface adsorbed CO molecule. Afterwards, it significantly reduces the energy barrier of the CC coupling process to 0.48 eV and makes the limiting potential (LP) of the reduction to ethylene 0.28 eV and 0.49 eV to ethanol. The high efficiency of this neighboring strong weak metal atom pair strategy offers new guidance to the electro-catalysis of C1 compound to C₂+ products

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cuFe双金属复合材料的强-弱吸附对基序作为CO2向CO2产物乙烯和乙醇的有效催化剂

目前，随着双碳目标的提出，二氧化碳的转化已成为一个热门话题。电催化在各种催化技术中占有突出的地位。二氧化碳还原为C2产物或C2+产物对二氧化碳的深度利用具有重要意义。然而，它容易存在速度慢、选择性低、对C2+产物超电位高的缺点。本文提出了邻近强弱金属原子对策略，设计了一种新的双金属催化剂，旨在显著降低C2+产物的过电位。强（Fe）和弱（cu）基序从CO2到表面吸附的CO分子具有可忽略的0.06 eV的能垒。之后，将CC耦合过程的能垒显著降低至0.48 eV，还原乙烯的极限电位（LP）为0.28 eV，还原乙醇的极限电位（LP）为0.49 eV。这种相邻强弱金属原子对策略的高效率为C1化合物电催化生成C2+产物提供了新的指导

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来源期刊

Journal of Electroanalytical Chemistry 化学-电化学

CiteScore

7.80

自引率

6.70%

发文量

912

审稿时长

2.4 months

期刊介绍： The Journal of Electroanalytical Chemistry is the foremost international journal devoted to the interdisciplinary subject of electrochemistry in all its aspects, theoretical as well as applied. Electrochemistry is a wide ranging area that is in a state of continuous evolution. Rather than compiling a long list of topics covered by the Journal, the editors would like to draw particular attention to the key issues of novelty, topicality and quality. Papers should present new and interesting electrochemical science in a way that is accessible to the reader. The presentation and discussion should be at a level that is consistent with the international status of the Journal. Reports describing the application of well-established techniques to problems that are essentially technical will not be accepted. Similarly, papers that report observations but fail to provide adequate interpretation will be rejected by the Editors. Papers dealing with technical electrochemistry should be submitted to other specialist journals unless the authors can show that their work provides substantially new insights into electrochemical processes.