Activity–Selectivity Trends in the Electrochemical Production of Hydrogen Peroxide over Single-Site Metal–Nitrogen–Carbon Catalysts

2019 ◽  
Vol 141 (31) ◽  
pp. 12372-12381 ◽  
Author(s):  
Yanyan Sun ◽  
Luca Silvioli ◽  
Nastaran Ranjbar Sahraie ◽  
Wen Ju ◽  
Jingkun Li ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Single Site ◽  
Production Of Hydrogen ◽  
Electrochemical Production ◽  
Carbon Catalysts

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

2020 ◽  
Vol 7 (8) ◽  
pp. 1360-1366 ◽  
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.

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

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...

Electrocatalyst derived from fungal hyphae and its excellent activity for electrochemical production of hydrogen peroxide

2019 ◽  
Vol 308 ◽  
pp. 74-82 ◽  
Author(s):  
Hai-Xia Zhang ◽  
Shi-Chao Yang ◽  
Yun-Lu Wang ◽  
Jian-Chao Xi ◽  
Jing-Cheng Huang ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Production Of Hydrogen ◽  
Excellent Activity ◽  
Fungal Hyphae ◽  
Electrochemical Production
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