nn5b07126_si_001.pdf (2.69 MB)
Download fileIntegrated Three-Dimensional Carbon Paper/Carbon Tubes/Cobalt-Sulfide Sheets as an Efficient Electrode for Overall Water Splitting
journal contribution
posted on 2016-01-19, 00:00 authored by Jun Wang, Hai-xia Zhong, Zhong-li Wang, Fan-lu Meng, Xin-bo ZhangThe development of an efficient catalytic
electrode toward both
hydrogen evolution reaction (HER) and oxygen evolution reaction (OER)
is of great significance for overall water splitting associated with
the conversion and storage of clean and renewable energy. In this
study, carbon paper/carbon tubes/cobalt-sulfide is introduced as an
integrated three-dimensional (3D) array electrode for cost-effective
and energy-efficient HER and OER in alkaline medium. Impressively,
this electrode displays superior performance compared to non-noble
metal catalysts reported previously, benefiting from the unique 3D
array architecture with increased exposure and accessibility of active
sites, improved vectorial electron transport capability, and enhanced
release of gaseous products. Such an integrated and versatile electrode
makes the overall water splitting proceed in a more direct and smooth
manner, reducing the production cost of practical technological devices.