Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 277, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2020.119175
Keywords
Water splitting; Hydrogen Evolution reaction; Electrooxidation; Small organic molecules; Sewage disposal
Funding
- National Key Research and Development Program of China [2018YFB1502700]
- National Natural Science Foundation of China [91534205, 21436003, 21576031, 21776023]
- Fundamental Research Funds for the Central Universities [2018CDXYHG0028, 2019CDXYHG0012]
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Replacing the bootless and sluggish oxygen evolution reaction with the oxidation of some more readily oxidized chemical products is a feasible strategy for energy-saving H-2 generation. However, its broad application is inhibited by the costly raw materials, noble-metal catalysts and the toxic effect of organic molecules on catalysts. Herein, we report a novel anti-poisoning MP-MOx (M = Ni, Fe and Mo) bifunctional catalyst that can combine the energy-saving H-2 production with sewage disposal simultaneously by directly electrolyzing the wastewater containing organic molecules. The MP-MOx catalyst expresses a commendable electrocatalytic activity for hydrogen evolution reaction and electrooxidation decomposition of small organic molecules (EDM), as well as a remarkable anti-toxicity for organic molecules and a long-term durability. As compared with traditional water electrolysis, the organic electrolytic system exhibits an excellent cell efficient with a cell voltage reducing of 120 mV and can dramatically allow electrical energy savings up to 8% at 10 mA cm(-2).
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