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

Bowen Jin; Xuemei Zhou; Li Huang; Markus Licklederer; Min Yang; Patrik Schmuki

doi:10.1002/anie.201605551

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

Angew Chem Int Ed Engl. 2016 Sep 26;55(40):12252-6. doi: 10.1002/anie.201605551. Epub 2016 Sep 7.

Authors

Bowen Jin¹, Xuemei Zhou², Li Huang¹, Markus Licklederer², Min Yang³, Patrik Schmuki⁴

Affiliations

¹ MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, PR China.
² Department of Materials Science, Institute for Surface Science and Corrosion (LKO), University of Erlangen-Nuremberg, Martensstrasse 7, 91058, Erlangen, Germany.
³ MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, PR China. [email protected].
⁴ Department of Materials Science, Institute for Surface Science and Corrosion (LKO), University of Erlangen-Nuremberg, Martensstrasse 7, 91058, Erlangen, Germany. [email protected].

PMID: 27599478
DOI: 10.1002/anie.201605551

Abstract

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 MoOx /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.

Keywords: H2 evolution; anodization; core-shell structures; molybdenum oxide; nanotubes.

Publication types

Research Support, Non-U.S. Gov't