Issue 28, 2023

Amorphous vanadium-doped cobalt oxyborate as an efficient electrocatalyst for urea-assisted H2 production from urine sewage

Abstract

The urea oxidation reaction (UOR) with low required oxidation potential is not only an energy-saving strategy for efficient hydrogen production but also offers an effective way to treat wastewater by decomposing urea. An amorphous cobalt oxyborate with optimum vanadium doping has been identified as an efficient electrocatalyst for UOR for the first time with great stability. The electrocatalyst requires only 1.37 V potential to achieve a current density of 20 mA cm−2. Impressively, the developed electrocatalyst exhibited very active and long stability in alkaline raw bovine urine as extreme urine sewage media coupled with efficient hydrogen production at the cathode.

Graphical abstract: Amorphous vanadium-doped cobalt oxyborate as an efficient electrocatalyst for urea-assisted H2 production from urine sewage

Supplementary files

Article information

Article type
Communication
Submitted
15 May 2023
Accepted
19 Jun 2023
First published
23 Jun 2023

Dalton Trans., 2023,52, 9546-9552

Amorphous vanadium-doped cobalt oxyborate as an efficient electrocatalyst for urea-assisted H2 production from urine sewage

T. Ahmed, S. Bhattacharjee and P. Roy, Dalton Trans., 2023, 52, 9546 DOI: 10.1039/D3DT01454A

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