{"title":"Ag–Pt Alloy Nanoparticles Modified Zn-Based Nanosheets for Highly Selective CO2 Photoreduction to CH4","authors":"Qiuchan Li, Qi Wang, Yubin Zeng, Yanfei Xu, Xiang-Kui Gu, Mingyue Ding","doi":"10.1002/adfm.202416975","DOIUrl":null,"url":null,"abstract":"Multi-electron involved photoreduction of CO<sub>2</sub> to hydrocarbon fuels is a long-standing challenge, particularly in manipulating the selectivity of the target products. Here, a novel Ag–Pt bimetallic alloy on Zn-based supports by photo-deposition is designed for photocatalytic CO<sub>2</sub> reduction to CH<sub>4</sub> without any additives. This photocatalyst exhibits ≈ 98.9% selectivity for CH<sub>4</sub>. Experimental and theoretical calculations demonstrated that the excellent performance of the photocatalyst can be attributed to the localized surface plasmon resonance effect of metals, as well as the synergistic effects of the bimetallic sites. These factors are found to be beneficial not only for capturing solar radiation and facilitating electron migration but also for promoting the adsorption and activation of CO<sub>2</sub> and the protonation of *CO. As a result, the photocatalyst achieved high selectivity and activity of photoreduction of CO<sub>2</sub> to CH<sub>4</sub>. This work provides insights into the design of photocatalysts with highly selective target products for CO<sub>2</sub> reduction.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":18.5000,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Functional Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/adfm.202416975","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Multi-electron involved photoreduction of CO2 to hydrocarbon fuels is a long-standing challenge, particularly in manipulating the selectivity of the target products. Here, a novel Ag–Pt bimetallic alloy on Zn-based supports by photo-deposition is designed for photocatalytic CO2 reduction to CH4 without any additives. This photocatalyst exhibits ≈ 98.9% selectivity for CH4. Experimental and theoretical calculations demonstrated that the excellent performance of the photocatalyst can be attributed to the localized surface plasmon resonance effect of metals, as well as the synergistic effects of the bimetallic sites. These factors are found to be beneficial not only for capturing solar radiation and facilitating electron migration but also for promoting the adsorption and activation of CO2 and the protonation of *CO. As a result, the photocatalyst achieved high selectivity and activity of photoreduction of CO2 to CH4. This work provides insights into the design of photocatalysts with highly selective target products for CO2 reduction.
将 CO2 光催化还原为碳氢化合物燃料的多电子参与是一项长期挑战,尤其是在操纵目标产物的选择性方面。在此,我们通过光沉积技术在锌基载体上设计了一种新型银铂双金属合金,用于在不使用任何添加剂的情况下光催化将 CO2 还原成 CH4。这种光催化剂对 CH4 的选择性≈ 98.9%。实验和理论计算表明,该光催化剂的优异性能可归因于金属的局部表面等离子体共振效应以及双金属位点的协同效应。这些因素不仅有利于捕获太阳辐射和促进电子迁移,还有利于促进 CO2 的吸附和活化以及 *CO 的质子化。因此,该光催化剂实现了将 CO2 光还原为 CH4 的高选择性和高活性。这项工作为设计具有高选择性目标产物的光催化剂以还原二氧化碳提供了启示。
期刊介绍:
Firmly established as a top-tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week.
Advanced Functional Materials is known for its rapid and fair peer review, quality content, and high impact, making it the first choice of the international materials science community.