挖掘出具有高指数晶面的立方铂铱合金纳米晶体作为将氮固定为氨的高效电催化剂。
Excavated cubic platinum-iridium alloy nanocrystals with high-index facets as highly efficient electrocatalysts in N fixation to NH.
作者信息
Mao Yu-Jie, Wei Lu, Zhao Xin-Sheng, Wei Yong-Sheng, Li Jian-Wei, Sheng Tian, Zhu Fu-Chun, Tian Na, Zhou Zhi-You, Sun Shi-Gang
机构信息
School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China.
College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, China.
出版信息
Chem Commun (Camb). 2019 Aug 14;55(63):9335-9338. doi: 10.1039/c9cc04034j. Epub 2019 Jul 17.
Excavated cubic PtIr alloy nanocrystals enclosed by high-index {710} facets exhibit excellent electrocatalytic properties for the nitrogen reduction reaction (NRR) with a high faradaic efficiency (40.8%) and NH production rate (28 μg h cm). The presence of Ir on the Pt stepped surface suppresses the hydrogen evolution reaction (HER) and accelerates the NRR.
由高指数{710}晶面包围的挖掘出的立方PtIr合金纳米晶体表现出优异的氮还原反应（NRR）电催化性能，具有高法拉第效率（40.8%）和NH生成速率（28 μg h cm）。Pt阶梯表面上Ir的存在抑制了析氢反应（HER）并加速了NRR。
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