Towards (Photo)electrochemical Production of Hydrogen Peroxide by Water Oxidation as a Financial Attractive Alternative to Oxygen Evolution

Fundamental understandings towards oxygen evolution reaction (OER) are of vital importance as it dominates the overall efficiency of water electrolysis – a compelling technique for sustainable production of hydrogen feedstock....

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Selective electrochemical production of hydrogen peroxide at zigzag edges of exfoliated molybdenum telluride nanoflakes

National Science Review ◽

10.1093/nsr/nwaa084 ◽

2020 ◽

Vol 7 (8) ◽

pp. 1360-1366 ◽

Cited By ~ 1

Author(s):

Xuan Zhao ◽

Yu Wang ◽

Yunli Da ◽

Xinxia Wang ◽

Tingting Wang ◽

...

Keyword(s):

Hydrogen Peroxide ◽

High Activity ◽

Molecular Oxygen ◽

Large Mass ◽

Binding Energies ◽

Hydrogen Electrode ◽

Production Of Hydrogen ◽

Activity Onset ◽

Electrochemical Production ◽

Electron Reduction

Abstract The two-electron reduction of molecular oxygen represents an effective strategy to enable the green, mild and on-demand synthesis of hydrogen peroxide. Its practical viability, however, hinges on the development of advanced electrocatalysts, preferably composed of non-precious elements, to selectively expedite this reaction, particularly in acidic medium. Our study here introduces 2H-MoTe2 for the first time as the efficient non-precious-metal-based electrocatalyst for the electrochemical production of hydrogen peroxide in acids. We show that exfoliated 2H-MoTe2 nanoflakes have high activity (onset overpotential ∼140 mV and large mass activity of 27 A g−1 at 0.4 V versus reversible hydrogen electrode), great selectivity (H2O2 percentage up to 93%) and decent stability in 0.5 M H2SO4. Theoretical simulations evidence that the high activity and selectivity of 2H-MoTe2 arise from the proper binding energies of HOO* and O* at its zigzag edges that jointly favor the two-electron reduction instead of the four-electron reduction of molecular oxygen.

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Catalytic materials for efficient electrochemical production of hydrogen peroxide

APL Materials ◽

10.1063/5.0002845 ◽

2020 ◽

Vol 8 (5) ◽

pp. 050701 ◽

Cited By ~ 4

Author(s):

Jaejung Song ◽

Seungho Cho

Keyword(s):

Hydrogen Peroxide ◽

Catalytic Materials ◽

Production Of Hydrogen ◽

Electrochemical Production

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Mesoporous Co-O-C Nanosheets for Electrochemical Production of Hydrogen Peroxide in Acidic Medium

Journal of Materials Chemistry A ◽

10.1039/d1ta10416k ◽

2022 ◽

Author(s):

Lingyan Jing ◽

Qiang Tian ◽

Panan Su ◽

Haitao Li ◽

Yao Zheng ◽

...

Keyword(s):

Hydrogen Peroxide ◽

Oxygen Reduction Reaction ◽

Environmental Remediation ◽

Acidic Medium ◽

Low Cost ◽

Reduction Reaction ◽

Fenton Process ◽

On Demand ◽

Production Of Hydrogen ◽

Electrochemical Production

Electrochemical two-electron oxygen reduction reaction (2e− ORR) to produce hydrogen peroxide (H2O2) enables promising electro-Fenton process for on-site and on-demand environmental remediation. However, there is still lack of low-cost electrocatalysts...

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