Nanoporous Sulfur-Doped Copper Oxide (Cu2OxS1-x) for Overall Water Splitting.
ACS Appl Mater Interfaces
; 10(1): 745-752, 2018 Jan 10.
Article
en En
| MEDLINE
| ID: mdl-29265797
ABSTRACT
Developing active and bifunctional noble metal-free electrocatalysts is crucial for both the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in the full water splitting process. A ternary nanoporous sulfur-doped copper oxide (Cu2OxS1-x) was successfully synthesized on Cu foam. The obtained Cu2OxS1-x/Cu shows robust electrocatalytic activity toward HER with a low overpotential of 40 mV at 10 mA cm-2 and a Tafel slope of 68 mV dec-1 and exhibits long-term stability in acid solution. Moreover, Cu2OxS1-x shows excellent electrocatalytic activity for OER, HER, and overall water splitting as a bifunctional catalyst in 1.0 M KOH electrolyte. The sulfur doping strategy implemented here can greatly improve the catalytic performance and stability in both acidic and alkaline water electrolyzers and presents an efficient catalyst for overall water splitting.
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Banco de datos:
MEDLINE
Idioma:
En
Revista:
ACS Appl Mater Interfaces
Asunto de la revista:
BIOTECNOLOGIA
/
ENGENHARIA BIOMEDICA
Año:
2018
Tipo del documento:
Article