{"title":"镉基金属-有机框架在大电势范围内的高性能电化学CO2还原为CO","authors":"Xin Li , Song Hong , Leiduan Hao , Zhenyu Sun","doi":"10.1016/j.cjche.2021.10.013","DOIUrl":null,"url":null,"abstract":"<div><p>Electrochemical CO<sub>2</sub> reduction (ECR) powered by renewable energy sources provides a sustainable avenue to producing carbon–neutral fuels and chemicals. The design and development of high performance, cost-effective, and stable catalysts for ECR remain a focus of intense research. Here, we report a novel electrocatalyst, two-dimensional cadmium-based 1,4-benzenedicarboxylate metal–organic frameworks (Cd-BDC MOFs) which can effectively convert CO<sub>2</sub> to CO with a faradaic efficiency (FE) of more than 80.0% over the voltage range between −0.9 and −1.1 V (versus reversible hydrogen electrode, <em>vs.</em> RHE) in 0.1 mol·L<sup>−1</sup> CO<sub>2</sub>-saturated KHCO<sub>3</sub> solution with an H-type cell, reaching up to 88.9% at −1.0 V (<em>vs.</em> RHE). The performance outperforms commercial CdO and many other MOF-based materials demonstrated in prior literature. The catalytic property can be readily tuned by manipulating synthesis conditions as well as electrolyte type. Especially, high CO FEs exceeding 90.0% can be attained on the Cd-BDC electrode at potentials ranging from −0.16 to −1.06 V (<em>vs</em>. RHE) in 0.5 mol·L<sup>−1</sup> KHCO<sub>3</sub> solution by using a gas diffusion electrode cell system. The maximum CO FE approaches ∼97.6% at −0.26 V (<em>vs</em>. RHE) and the CO partial geometric current density is as high as about 108.1 mA · cm<sup>−2</sup> at −1.1 V (<em>vs</em>. RHE). This work offers an efficient, low cost, and alternative electrocatalyst for CO<sub>2</sub> transformation.</p></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":3.7000,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":"{\"title\":\"Cadmium-based metal−organic frameworks for high-performance electrochemical CO2 reduction to CO over wide potential range\",\"authors\":\"Xin Li , Song Hong , Leiduan Hao , Zhenyu Sun\",\"doi\":\"10.1016/j.cjche.2021.10.013\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Electrochemical CO<sub>2</sub> reduction (ECR) powered by renewable energy sources provides a sustainable avenue to producing carbon–neutral fuels and chemicals. The design and development of high performance, cost-effective, and stable catalysts for ECR remain a focus of intense research. Here, we report a novel electrocatalyst, two-dimensional cadmium-based 1,4-benzenedicarboxylate metal–organic frameworks (Cd-BDC MOFs) which can effectively convert CO<sub>2</sub> to CO with a faradaic efficiency (FE) of more than 80.0% over the voltage range between −0.9 and −1.1 V (versus reversible hydrogen electrode, <em>vs.</em> RHE) in 0.1 mol·L<sup>−1</sup> CO<sub>2</sub>-saturated KHCO<sub>3</sub> solution with an H-type cell, reaching up to 88.9% at −1.0 V (<em>vs.</em> RHE). The performance outperforms commercial CdO and many other MOF-based materials demonstrated in prior literature. The catalytic property can be readily tuned by manipulating synthesis conditions as well as electrolyte type. Especially, high CO FEs exceeding 90.0% can be attained on the Cd-BDC electrode at potentials ranging from −0.16 to −1.06 V (<em>vs</em>. RHE) in 0.5 mol·L<sup>−1</sup> KHCO<sub>3</sub> solution by using a gas diffusion electrode cell system. The maximum CO FE approaches ∼97.6% at −0.26 V (<em>vs</em>. RHE) and the CO partial geometric current density is as high as about 108.1 mA · cm<sup>−2</sup> at −1.1 V (<em>vs</em>. RHE). This work offers an efficient, low cost, and alternative electrocatalyst for CO<sub>2</sub> transformation.</p></div>\",\"PeriodicalId\":9966,\"journal\":{\"name\":\"Chinese Journal of Chemical Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2022-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chinese Journal of Chemical Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1004954121005619\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Journal of Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1004954121005619","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Cadmium-based metal−organic frameworks for high-performance electrochemical CO2 reduction to CO over wide potential range
Electrochemical CO2 reduction (ECR) powered by renewable energy sources provides a sustainable avenue to producing carbon–neutral fuels and chemicals. The design and development of high performance, cost-effective, and stable catalysts for ECR remain a focus of intense research. Here, we report a novel electrocatalyst, two-dimensional cadmium-based 1,4-benzenedicarboxylate metal–organic frameworks (Cd-BDC MOFs) which can effectively convert CO2 to CO with a faradaic efficiency (FE) of more than 80.0% over the voltage range between −0.9 and −1.1 V (versus reversible hydrogen electrode, vs. RHE) in 0.1 mol·L−1 CO2-saturated KHCO3 solution with an H-type cell, reaching up to 88.9% at −1.0 V (vs. RHE). The performance outperforms commercial CdO and many other MOF-based materials demonstrated in prior literature. The catalytic property can be readily tuned by manipulating synthesis conditions as well as electrolyte type. Especially, high CO FEs exceeding 90.0% can be attained on the Cd-BDC electrode at potentials ranging from −0.16 to −1.06 V (vs. RHE) in 0.5 mol·L−1 KHCO3 solution by using a gas diffusion electrode cell system. The maximum CO FE approaches ∼97.6% at −0.26 V (vs. RHE) and the CO partial geometric current density is as high as about 108.1 mA · cm−2 at −1.1 V (vs. RHE). This work offers an efficient, low cost, and alternative electrocatalyst for CO2 transformation.
期刊介绍:
The Chinese Journal of Chemical Engineering (Monthly, started in 1982) is the official journal of the Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co. Ltd. The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering. It publishes original research papers that cover the major advancements and achievements in chemical engineering in China as well as some articles from overseas contributors.
The topics of journal include chemical engineering, chemical technology, biochemical engineering, energy and environmental engineering and other relevant fields. Papers are published on the basis of their relevance to theoretical research, practical application or potential uses in the industry as Research Papers, Communications, Reviews and Perspectives. Prominent domestic and overseas chemical experts and scholars have been invited to form an International Advisory Board and the Editorial Committee. It enjoys recognition among Chinese academia and industry as a reliable source of information of what is going on in chemical engineering research, both domestic and abroad.