Integrated hetero-nanoelectrodes for plasmon-enhanced electrocatalysis of hydrogen evolution

• 作者: Wenyu Jiang Xianxin Wu Jinquan Chang Yanhong Ma Luting Song Zhexue Chen Cheng Liang Xinfeng Liu Yong Zhang
• 来源期刊: 纳米研究（英文版）
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: Research Articles
• 页码范围: 1195-1201
• 页数: 7页
• 语种: 英文

摘要

Hetero-nanostructures of plasmonic metals and semiconductors have attracted increasing attention in the field of photocatalysis.However,most of the hetero-nanostructured catalysts are randomly arranged and therefore require comprehensive structural design for optimizing their properties.Herein,we report the robust construction of hierarchical hetero-nanostructures where gold (Au)nanorods and molybdenum disuffide (MoS2) quantum sheets (QSs) are integrated in highly ordered arrays.Such construction is achieved through porous anodic alumina (PAA) template-assisted electrodeposition.The as-fabricated hetero-nanostructures demonstrate exciting electrocatalysis towards hydrogen evolution reaction (HER).Both plasmon-induced hot-electron injection and plasmonic scattering/reabsorption mechanisms are determinative to the enhanced eisotrocatalytic performances.Notably,broadband photoresponses of HER activity in the visible range are observed,indicating their superiority compared with random systems.Such integrated hetero-nanoelectrodes could provide a powerful platform for conversion and utilization of solar energy,meanwhile would greatly prompt the production and exploration of ordered nanoelectrodes.