二硫化钼
催化作用
电化学
纳米尺度
活动站点
电催化剂
制氢
材料科学
纳米技术
钼
化学工程
化学
电极
有机化学
物理化学
冶金
工程类
作者
Cameron L. Bentley,Lachlan F. Gaudin,Minkyung Kang
摘要
Local voltammetric analysis with a scanning electrochemical droplet cell technique, in combination with a new data processing protocol (termed data binning and trinisation), is used to directly identify previously unseen regions of elevated electrocatalytic activity on the basal plane (BP) of molybdenum disulfide (2H-MoS2). This includes BP-like structures with hydrogen evolution reaction activities approaching that of the edge plane and rare nanoscale electrocatalytic "hot-spots" present at an areal density of approximately 0.2-1 μm-2. Understanding the nature of (sub)microscopic catalytic active sites, such as those identified herein, is crucial to guide the rational design of next-generation earth-abundant materials for renewable fuels production.
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