作者
Bing Yu, Hao Li, Jai White, Scott Donne, Jiabao Yi, Shibo Xi, Yang Fu, Graeme Henkelman, Hai Yu, Zuliang Chen, Tianyi Ma
发表日期
2020/2
期刊
Advanced Functional Materials
卷号
30
期号
6
页码范围
1905665
简介
Developing cost‐effective, high‐performance nitrogen reduction reaction (NRR) electrocatalysts is required for the production of green and low‐cost ammonia under ambient conditions. Here, a strategy is proposed to adjust the reaction preference of noble metals by tuning the size and local chemical environment of the active sites. This proof‐of‐concept model is realized by single ruthenium atoms distributed in a matrix of graphitic carbon nitride (Ru SAs/g‐C3N4). This model is compared, in terms of the NRR activity, to bulk Ru. The as‐synthesized Ru SAs/g‐C3N4 exhibits excellent catalytic activity and selectivity with an NH3 yield rate of 23.0 µg mgcat−1 h−1 and a Faradaic efficiency as high as 8.3% at a low overpotential (0.05 V vs the reversible hydrogen electrode), which is far better than that of the bulk Ru counterpart. Moreover, the Ru SAs/g‐C3N4 displays a high stability during five recycling tests and a 12 h …
学术搜索中的文章
B Yu, H Li, J White, S Donne, J Yi, S Xi, Y Fu… - Advanced Functional Materials, 2020