氮气
化学
化学工程
还原(数学)
电化学
材料科学
形态学(生物学)
电催化剂
催化作用
纳米技术
纳米结构
金属
电极
有机化学
物理化学
数学
工程类
生物
遗传学
几何学
作者
Wenyan Gao,Yuchen Hao,Xin Su,Liwei Chen,Tong-An Bu,Nan Zhang,Zhengkun Yu,Zhejiaji Zhu,Anxiang Yin
摘要
Electrocatalytic nitrogen reduction reactions (ENRR) can produce ammonia from nitrogen and water under ambient conditions. Here, we report the morphology-dependent electro-catalytic nitrogen reduction on Ag triangular nanoplates. Boosted by potassium cations, Ag triangular nanoplates with sharp edges exhibit a high faradaic efficiency of 25% with an ammonia yield of 58.5 mg gAg-1 h-1 at a low overpotential of -0.25 V vs. RHE. In comparison, rounded Ag nanoparticles mainly enclosed by {111} and {100} surfaces show a much smaller faradaic efficiency of 16% and ammonia yield of 38 mg gAg-1 h-1 at a larger overpotential (-0.35 V vs. RHE).
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