期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 138, 期 49, 页码 16056-16068出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b09622
关键词
-
资金
- U.K. Engineering and Physical Sciences research council [EP/J016454/1]
- Sao Paulo Research Foundation [2016/07848-3, 2014/50279-4, 2014/09087-4]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [16/07848-3, 14/09087-4] Funding Source: FAPESP
- Engineering and Physical Sciences Research Council [EP/J016454/1] Funding Source: researchfish
- EPSRC [EP/J016454/1] Funding Source: UKRI
Although major progress has recently been achieved through ex situ methods, there is still a lack of understanding of the 7 behavior of the active center in non-precious metal Fe-N/C catalysts under operating conditions. Utilizing nitrite, nitric oxide, and hydroxylamine as molecular probes, we show that the active site for the oxygen reduction reaction (ORR) is different under acidic and alkaline conditions. An in-depth investigation of the ORR in acid reveals a behavior which is similar to that of iron macrocyclic complexes and suggests a contribution of the metal center in the catalytic cycle. We also show that this catalyst is highly active toward nitrite and nitric oxide electroreduction under various pH values, with ammonia as a significant byproduct. This study offers fundamental insight into the chemical behavior of the active site and demonstrates a possible use of these materials for nitrite and nitric oxide sensing applications or environmental nitrite destruction.
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