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Revealing the hidden performance of metal phthalocyanines for CO_2 reduction electrocatalysis by hybridization with carbon nanotubes

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Jiang Zhan 1,2   Wang Yang 1,2 *   Zhang Xiao 2   Zheng Hongzhi 2   Wang Xiaojun 2   Liang Yongye 2 *  
文摘 Metal phthalocyanines (MePcs) have been considered as promising catalysts for CO_2 reduction electrocatalysis due to high turnover frequency and structural tunability. However, their performance is often limited by low current density and the performance of some systems is controversial. Here, we report a carbon nanotube (CNT) hybridization approach to study the electrocatalytic performance of MePcs (Me = Co, Fe and Mn). MePc molecules are anchored on CNTs to form the hybrid materials without noticeable molecular aggregations. The MePc/CNT hybrids show higher activities and better stabilities than their molecular counterparts. FePc/CNT is slightly less active than CoPc/CNT, but it could deliver higher Faradaic efficiencies for CO production at low overpotentials. In contrast, the catalytic performance of MePc molecules directly loaded on substrate is hindered by molecular aggregation, especially for FePc and MnPc. Our results suggest that carbon nanotube hybridization is an efficient approach to construct advanced MePc electrocatalysts and to understand their catalytic performance.
来源 Nano Research ,2019,12(9):2330-2334 【核心库】
DOI 10.1007/s12274-019-2455-z
关键词 CO_2 reduction ; electrocatalysis ; carbon nanotube ; metal phthalocyanine ; hybrid
地址

1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001  

2. Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055

语种 英文
文献类型 研究性论文
ISSN 1998-0124
学科 物理学
基金 financial supports from Shenzhen fundamental research funding
文献收藏号 CSCD:6619307

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引证文献 13 篇

1 Wang Hailiang The Nano Research Young Innovators (NR45) Awards in nanoenergy Nano Research,2019,12(9):1975-1977
CSCD被引 1 次

2 Yang Chenhuai Bimetallic phthalocyanine heterostructure used for highly selective electrocatalytic CO_2 reduction Science China. Materials,2022,65(1):155-162
CSCD被引 6 次

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