In situ synthesize Bi nanostructures on copper foam toward efficient electrocatalytic hydrogen evolution reaction

Zahraei, Ayda Asaadi; Yaghobi, Roya; Golmohammad, Mohammad

doi:10.1007/s11696-022-02519-z

Cited by 1 publication

(1 citation statement)

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“…Photoelectrochemical (PEC) water splitting is recognized as an attractive approach for converting inexhaustible solar energy into hydrogen energy [1][2][3][4]. In a typical PEC system, the oxygen evolution reaction (OER) occurs at the photoanode, and the hydrogen evolution reaction (HER) occurs at the counter electrode.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effect of Co3(HPO4)2(OH)2 Cocatalyst and Al2O3 Passivation Layer on BiVO4 Photoanode for Enhanced Photoelectrochemical Water Oxidation

Sun,

Li,

Chen

et al. 2024

Molecules

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Bismuth vanadate (BVO) is regarded as an exceptional photoanode material for photoelectrochemical (PEC) water splitting, but it is restricted by the severe photocorrosion and slow water oxidation kinetics. Herein, a synergistic strategy combined with a Co3(HPO4)2(OH)2 (CoPH) cocatalyst and an Al2O3 (ALO) passivation layer was proposed for enhanced PEC performance. The CoPH/ALO/BVO photoanode exhibits an impressive photocurrent density of 4.9 mA cm−2 at 1.23 VRHE and an applied bias photon-to-current efficiency (ABPE) of 1.47% at 0.76 VRHE. This outstanding PEC performance can be ascribed to the suppressed surface charge recombination, facilitated interfacial charge transfer, and accelerated water oxidation kinetics with the introduction of the CoPH cocatalyst and ALO passivation layer. This work provides a novel and synergistic approach to design an efficient and stable photoanode for PEC applications by combining an oxygen evolution cocatalyst and a passivation layer.

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Section: Introductionmentioning

confidence: 99%