3d Transition‐Metal‐Mediated Columbite Nanocatalysts for Decentralized Electrosynthesis of Hydrogen Peroxide

Small ◽  
2021 ◽  
pp. 2007249
Author(s):  
Chang Liu ◽  
Hao Li ◽  
Junsheng Chen ◽  
Zixun Yu ◽  
Qiang Ru ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Transition Metal ◽  
Electrosynthesis Of Hydrogen Peroxide

Catalytic oxidation of α-pinene by transition metal using t-butyl hydroperoxide and hydrogen peroxide

2003 ◽  
Vol 200 (1-2) ◽  
pp. 177-184 ◽  
Author(s):  
Badia Ait Allal ◽  
Larbi El Firdoussi ◽  
Smail Allaoud ◽  
Abdallah Karim ◽  
Yves Castanet ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Transition Metal ◽  
Catalytic Oxidation ◽  
Butyl Hydroperoxide

scholarly journals Ultramicrosensors based on transition metal hexacyanoferrates for scanning electrochemical microscopy

2013 ◽  
Vol 4 ◽  
pp. 649-654 ◽  
Author(s):  
Maria A Komkova ◽  
Angelika Holzinger ◽  
Andreas Hartmann ◽  
Alexei R Khokhlov ◽  
Christine Kranz ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Detection Limit ◽  
Transition Metal ◽  
Prussian Blue ◽  
Electrochemical Deposition ◽  
Mixed Layer ◽  
Scanning Electrochemical Microscopy ◽  
The Stability ◽  
Mixed Layers ◽  
Electrochemical Microscopy

We report here a way for improving the stability of ultramicroelectrodes (UME) based on hexacyanoferrate-modified metals for the detection of hydrogen peroxide. The most stable sensors were obtained by electrochemical deposition of six layers of hexacyanoferrates (HCF), more specifically, an alternating pattern of three layers of Prussian Blue and three layers of Ni–HCF. The microelectrodes modified with mixed layers were continuously monitored in 1 mM hydrogen peroxide and proved to be stable for more than 5 h under these conditions. The mixed layer microelectrodes exhibited a stability which is five times as high as the stability of conventional Prussian Blue-modified UMEs. The sensitivity of the mixed layer sensor was 0.32 A·M−1·cm−2, and the detection limit was 10 µM. The mixed layer-based UMEs were used as sensors in scanning electrochemical microscopy (SECM) experiments for imaging of hydrogen peroxide evolution.

Stable and selective electrosynthesis of hydrogen peroxide and the electro-Fenton process on CoSe2 polymorph catalysts

2020 ◽  
Vol 13 (11) ◽  
pp. 4189-4203 ◽  
Author(s):  
Hongyuan Sheng ◽  
Aurora N. Janes ◽  
R. Dominic Ross ◽  
Dave Kaiman ◽  
Jinzhen Huang ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Noble Metal ◽  
Acidic Solution ◽  
Organic Pollutant ◽  
Metal Catalysts ◽  
Fenton Process ◽  
Noble Metal Catalysts ◽  
Electrosynthesis Of Hydrogen Peroxide ◽  
Earth Abundant

Earth-abundant CoSe2 outperforms noble metal catalysts for the selective 2e− ORR in acidic solution, enabling the stable bulk electrosynthesis of practically useful 547 ppm H2O2 and the effective electro-Fenton degradation of an organic pollutant.

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