Aligned MoO_x/MoS₂ Core-Shell Nanotubular Structures with a High Density of Reactive Sites Based on Self-Ordered Anodic Molybdenum Oxide Nanotubes

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• 作者：Bowen Jin ; Xuemei Zhou ; Li Huang ; Markus Licklederer ; Prof. Dr. Min Yang and Prof. Dr. Patrik Schmuki
• 刊名：Angewandte Chemie International Edition
• 出版年：2016
• 出版时间：September 26, 2016
• 年：2016
• 卷：55
• 期：40
• 页码：12252-12256
• 全文大小：1473K
• ISSN：1521-3773

文摘

The present work demonstrates the self-organized formation of anodic molybdenum oxide nanotube arrays. The amorphous tubes can be crystallized to MoO₂ or MoO₃ and be converted fully or partially into molybdenum sulfide. Vertically aligned MoO_x/MoS₂ nanotubes can be formed when, under optimized conditions, defined MoS₂ sheets form in a layer by layer arrangement that provide a high density of reactive stacking misalignments (defects). These core–shell nanotube arrays consist of a conductive suboxide core and a functional high defect density MoS₂ coating. Such structures are highly promising for applications in electrocatalysis (hydrogen evolution) or ion insertion devices.