期刊
NANO ENERGY
卷 39, 期 -, 页码 321-327出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2017.07.008
关键词
Ohmic contact; Cobalt selenide; Ti mesh; Neutral; Oxygen evolution reaction
类别
资金
- National Basic Research Program of China [2013CB934102]
- National Natural Science Foundation of China [21331004, 21673140, 21671134]
- Innovation Program of Shanghai Science and Technology Committee [16JC1401600]
- Shanghai Eastern Scholar Program
- Shanghai Rising-Star Program [16QA1402100]
- SJTU-MPI partner group
Oxygen evolution reaction (OER) is a kinetically slow process for overall water splitting, particularly in neutral electrolyte. Great efforts have been devoted to the control in either composition or mesoscale structure of the nanocatalysts for accelerating the OER performance. However, the interface between the nanocatalysts and current collector, the third aspect to be considered for the design of an OER dyadic electrode, has been less touched till now. As a proof-of-concept study here, we described the importance of constructing an Ohmic contact at the interface of the cobalt selenide nanostructures (as the active components) and the Ti mesh (as the current collector) to significantly promote the OER performance in neutral electrolyte. The cobalt selenide/Ti mesh hybrid electrode could provide a current density of 29.6 mA cm(-2) at an OER overpotential of 570 mV and high durability in neutral medium.
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