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Advanced Science

Advanced Science

IF: 14.3
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In Situ Modulation of NiFeOOH Coordination Environment for Enhanced Electrocatalytic‐Conversion of Glucose and Energy‐Efficient Hydrogen Production

Published:11 December 2024 DOI: 10.1002/advs.202412872 PMID: 39661714
Ning Wei,?Sufeng Zhang,?Xue Yao,?Qinglu Li,?Nan Li,?Jinrui Li,?Dingjie Pan,?Qiming Liu,?Shaowei Chen,?Scott Renneckar

Abstract

Glucose electrocatalytic-conversion reaction (GCR) is a promising anode reaction to replace the slow oxygen evolution reaction (OER), thus promoting the development of hydrogen production by electrochemical water splitting. Herein, NiFe-based metal-organic framework (MOF) is used as a precursor to prepare W-doped nickel-iron phosphide (W-NiFeP) nanosheet arrays by ion exchange and phosphorylation, which exhibit a high electrocatalytic activity toward the hydrogen evolution reaction (HER), featuring an overpotential of only -179?mV to achieve the current density of 100?mA cm-2 in alkaline media. Notably, electrochemical activation of W-NiFeP facilitates the in situ formation of phosphate groups producing W,P-NiFeOOH, which, in conjunction with the W co-doped amorphous layers, leads to a high electrocatalytic performance toward GCR, due to enhanced proton transfer and adsorption of reaction intermediates, as confirmed in experimental and theoretical studies. Thus, the two-electrode electrolyzer of the W-NiFeP/NF||W,P-NiFeOOH/NF for HER||GCR needs only a low cell voltage of 1.56?V to deliver 100?mA cm-2 at a remarkable hydrogen production efficiency of 1.86?mmol h-1, with a high glucose conversion (98.0%) and formic acid yields (85.2%). Results from this work highlight the significance of the development of effective electrocatalysts for biomass electrocatalytic-conversion in the construction of high-efficiency electrolyzers for green hydrogen production.

Substances (8)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Potassium carbonate 584-08-7 K2CO3 1282 suppliers $5.00-$7200.00
Sodium hydroxide 1310-73-2 NaOH 1210 suppliers $14.00-$16472.00
D(+)-Glucose 50-99-7 C6H12O6 1113 suppliers $6.00-$26950.00
N,N-Dimethylacetamide 127-19-5 C4H9NO 927 suppliers $5.00-$8510.00
Potassium hydroxide 1310-58-3 KOH 747 suppliers $10.00-$7430.00
Sodium tungstate dihydrate 10213-10-2 H2NaO5W- 431 suppliers $9.00-$10710.00
Sodium hypophosphite 7681-53-0 H2NaO2P 351 suppliers $179.00-$179.00
DEUTERIUM OXIDE 7789-20-0 D2O 219 suppliers $18.00-$6120.00

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