Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 1, Pages 131-135Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta04858j
Keywords
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Funding
- National Research Foundation (NRF), Prime Minister's Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme
- Ministry of Education, Singapore [M4011020 RG8/12, M4011253 RG 7/14]
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The development of non-noble-metal based hydrogen-evolving catalysts is essential to the practical application of water-splitting devices. Improvement of both the activity and stability of such catalysts remains a key challenge. In this work, a simple solvothermal method is developed to directly grow MoS2 and WS2 on carbon cloth with vertically oriented nanosheet layers. With the unique layer orientation that maximally exposes active edge sites as well as a rapid release of small gas bubbles to maintain a large working area, such prepared 3-dimensional electrodes exhibit high activity towards the HER. In addition, they also exhibit prominent electrochemical durability, thanks to the strong bonding between the nanosheet layers and the substrate along with the self-removal of the as-formed H-2 bubbles from the nano-porous electrode surface.
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