期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 251, 期 -, 页码 112-118出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2019.03.047
关键词
Carbon dioxide; Electroreduction; Carbon nanotube; Pyridine; Cobalt phthalocyanine
资金
- East China University of Science and Technology [SG1503A003]
- National Key R&D Program of China [2018YFB0605803]
- Fundamental Research Funds for the Central Universities [222201718002]
Electrochemical reduction of CO2 is promising to utilize the intermittent renewable electricity and transform CO2 into value-added products, simultaneously. Herein, we designed a cobalt phthalocyanine-based catalyst supported on pyridine-functionalized carbon nanotubes (CoPc-py-CNT). This novel hybrid catalyst exhibited a high activity (TOFCO: 34.5 s(-1) at -0.63 V vs. RHE) and selectivity (FECO > 98%) for electrochemical CO2 reduction. To the best of our knowledge, it is the best one among all reported molecular based electrocatalysts for CO2-to-CO conversion. Furthermore, structure characterizations (such as Raman and X-rays photoelectron spectroscopy), loading-dependent electrochemical analysis and mechanistic studies revealed that pyridine groups, through axial coordination with Co, not only functioned as physical promoters to improve the dispersion of cobalt phthalocyanine but also tuned the electronic structure of Co sites to increase the intrinsic turnover frequency.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据