化学
无机化学
反应性(心理学)
三元运算
催化作用
电化学
电解质
阴极
铂金
氢
贵金属
选择性
物理化学
电极
有机化学
医学
病理
程序设计语言
替代医学
计算机科学
作者
Mohammad A. Hasnat,Muhammad Amirul Islam,Sami Ben Aoun,Jamil A. Safwan,Mohammed M. Rahman,Abdullah M. Asiri
标识
DOI:10.1002/cplu.201500255
摘要
Asymmetric (Pt|Nafion|Pt–Pd–Cu) assemblies were fabricated to study the nitrate-reduction reaction (NRR) at the cathode surface. The influence of the material composition, supplied current, and applied potential on the reactivity, kinetics, and product selectivity were thoroughly investigated. The cathode assembly consisting of 54 atom % Pt showed enhanced reactivity both in binary (Pt–Pd; k1≈10.7×10−3 min−1) and ternary (Cu–Pt–Pd; k1≈28.6×10−3 min−1) states. This composition was found to be highly nitrite-selective (80 % in the binary state and 53 % in the ternary state). The mechanistic studies revealed that the reduction of nitrate ions to ammonia proceeded through a catalytic hydrogenation reaction followed by electrochemical hydrogen generation.
科研通智能强力驱动
Strongly Powered by AbleSci AI