A catalyst design for selective electrochemical reactions: direct production of hydrogen peroxide in advanced electrochemical oxidation

2020 ◽  
Vol 8 (19) ◽  
pp. 9859-9870 ◽  
Author(s):  
Young-Jin Ko ◽  
Keunsu Choi ◽  
Boram Yang ◽  
Woong Hee Lee ◽  
Jun-Yong Kim ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Electrochemical Oxidation ◽  
Catalyst Design ◽  
Electrochemical Reactions ◽  
Attractive Alternative ◽  
Hydrogen Peroxide Production ◽  
Direct Production ◽  
Production Of Hydrogen ◽  
Commercial Process

Hydrogen peroxide production by enhanced electrocatalysts is an attractive alternative to the present commercial process.

Direct production of hydrogen peroxide from CO, O2, and H2O over a novel alumina-supported Cu catalyst

2004 ◽  
Vol 28 (12) ◽  
pp. 1431 ◽  
Author(s):  
Wei-Liang Feng ◽  
Yong Cao ◽  
Nan Yi ◽  
Wei-Lin Dai ◽  
Kang-Nian Fan
Keyword(s):  
Hydrogen Peroxide ◽  
Direct Production ◽  
Production Of Hydrogen ◽  
Cu Catalyst

scholarly journals Hydrogen peroxide production and killing of Staphylococcus aureus by human polymorphonuclear leukocytes

Blood ◽  
1977 ◽  
Vol 49 (3) ◽  
pp. 437-444 ◽  
Author(s):  
MF Tsan ◽  
KH Douglass ◽  
PA McIntyre
Keyword(s):  
Hydrogen Peroxide ◽  
Staphylococcus Aureus ◽  
Horseradish Peroxidase ◽  
Polymorphonuclear Leukocytes ◽  
H2o2 Production ◽  
Intracellular Killing ◽  
Hydrogen Peroxide Production ◽  
Production Of Hydrogen ◽  
Human Polymorphonuclear Leukocytes ◽  
Stimulation Of

Abstract The effects of bacterial neuraminidase on production of hydrogen peroxide (H2O2) and killing of Staphylococcus aureus by human polymorphonuclear leukocytes (PMN) were studied. The concentration of H2O2 was measured by the disappearance of scopoletin fluorescence in the presence of horseradish peroxidase. The results indicated that desialylation of human PMN inhibited the stimulation of H2O2 production during phagocytosis. It also markedly impaired the killing of S. aureus. Impaired killing of S. aureus by desialylated PMN was due to impaired intracellular killing rather than defective phagocytosis.

Direct Production of Hydrogen Peroxide with Palladium Supported on Phosphate Viologen Phosphonate Catalysts

2000 ◽  
Vol 196 (2) ◽  
pp. 366-374 ◽  
Author(s):  
Venkatesan V. Krishnan ◽  
Alexandre G. Dokoutchaev ◽  
Mark E. Thompson
Keyword(s):  
Hydrogen Peroxide ◽  
Direct Production ◽  
Production Of Hydrogen

scholarly journals Hydrogen peroxide production and killing of Staphylococcus aureus by human polymorphonuclear leukocytes

Blood ◽  
1977 ◽  
Vol 49 (3) ◽  
pp. 437-444
Author(s):  
MF Tsan ◽  
KH Douglass ◽  
PA McIntyre
Keyword(s):  
Hydrogen Peroxide ◽  
Staphylococcus Aureus ◽  
Horseradish Peroxidase ◽  
Polymorphonuclear Leukocytes ◽  
H2o2 Production ◽  
Intracellular Killing ◽  
Hydrogen Peroxide Production ◽  
Production Of Hydrogen ◽  
Human Polymorphonuclear Leukocytes ◽  
Stimulation Of

The effects of bacterial neuraminidase on production of hydrogen peroxide (H2O2) and killing of Staphylococcus aureus by human polymorphonuclear leukocytes (PMN) were studied. The concentration of H2O2 was measured by the disappearance of scopoletin fluorescence in the presence of horseradish peroxidase. The results indicated that desialylation of human PMN inhibited the stimulation of H2O2 production during phagocytosis. It also markedly impaired the killing of S. aureus. Impaired killing of S. aureus by desialylated PMN was due to impaired intracellular killing rather than defective phagocytosis.

Direct production of hydrogen peroxide from oxygen and hydrogen applying membrane-permeation mechanism

2010 ◽  
Vol 65 (1) ◽  
pp. 436-440 ◽  
Author(s):  
Tomoya Inoue ◽  
Yusuke Tanaka ◽  
David A. Pacheco Tanaka ◽  
Toshishige M. Suzuki ◽  
Koichi Sato ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Membrane Permeation ◽  
Direct Production ◽  
Production Of Hydrogen

scholarly journals Photoelectrocatalytic Hydrogen Peroxide Production Using Nanoparticulate WO3 as Photocatalyst and Glycerol or Ethanol as Sacrificial Agents

Processes ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 37 ◽  
Author(s):  
Ioannis Papagiannis ◽  
Nikolaos Balis ◽  
Vassilios Dracopoulos ◽  
Panagiotis Lianos
Keyword(s):  
Hydrogen Peroxide ◽  
Carbon Black ◽  
Visible Spectrum ◽  
Carbon Cloth ◽  
Organic Fuel ◽  
Hydrogen Peroxide Production ◽  
Faradaic Efficiency ◽  
Production Of Hydrogen ◽  
A Cell ◽  
Sacrificial Agent

Photoelectrochemical production of hydrogen peroxide was studied by using a cell functioning with a WO3 photoanode and an air breathing cathode made of carbon cloth with a hydrophobic layer of carbon black. The photoanode functioned in the absence of any sacrificial agent by water splitting, but the produced photocurrent was doubled in the presence of glycerol or ethanol. Hydrogen peroxide production was monitored in all cases, mainly in the presence of glycerol. The presence or absence of the organic fuel affected only the obtained photocurrent. The Faradaic efficiency for hydrogen peroxide production was the same in all cases, mounting up to 74%. The duplication of the photocurrent in the presence of biomass derivatives such as glycerol or ethanol and the fact that WO3 absorbed light in a substantial range of the visible spectrum promotes the presently studied system as a sustainable source of hydrogen peroxide production.

scholarly journals Mineralization of Melanoidin by H₂O₂ Producing Enzymes from Marine Cyanobacteria Oscillatoria boryana BDU 92181

2021 ◽  
Vol 2 (3) ◽  
pp. 28-32
Author(s):  
D. Francisca Kalavathi
Keyword(s):  
Hydrogen Peroxide ◽  
Manganese Peroxidase ◽  
Marine Cyanobacteria ◽  
Marine Cyanobacterium ◽  
Hydrogen Peroxide Production ◽  
Production Of Hydrogen ◽  
Intracellular Enzymes ◽  
Distillery Wastewater ◽  
Mineralizing Activity ◽  
Peroxidase Enzymes

Intracellular enzymes of Oscillatoria boryana BDU 92181 exhibited mineralizing activity on melanoidin, a recalcitrant pigment present in the distillery wastewater. Melanoidin decolourization was postulated to be due to the production of hydrogen peroxide and molecular oxygen released by the cyanobacterium during photosynthesis. The present study was aimed to find out the efficacy of the marine cyanobacterium O. boryana BDU 92181 in producing H2O2 and enzymes involved in hydrogen peroxide production with a view to utilize its potential for decolorization of melanoidin pigment in the distillery effluent. The enzymes involved in the melanoidin degradation have not so far been attempted with cyanobacteria. The results obtained in the present work suggested the activity of the glucose oxidase and Manganese peroxidase enzymes in a marine cyanobacterium Oscillatoria boryana BDU 92181 and whose activity was found to be enhanced in the presence of melanoidin.

scholarly journals Enhanced Catalytic Hydrogen Peroxide Production from Hydroxylamine Oxidation on Modified Activated Carbon Fibers: The Role of Surface Chemistry

Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1515
Author(s):  
Wei Song ◽  
Ran Zhao ◽  
Lin Yu ◽  
Xiaowei Xie ◽  
Ming Sun ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Activated Carbon ◽  
Photoelectron Spectroscopy ◽  
Reaction Pathway ◽  
Volume Ratio ◽  
Activated Carbon Fiber ◽  
H2o2 Production ◽  
Direct Production ◽  
Modified Activated Carbon ◽  
Production Of Hydrogen

Herein, direct production of hydrogen peroxide (H2O2) through hydroxylamine (NH2OH) oxidation by molecular oxygen was greatly enhanced over modified activated carbon fiber (ACF) catalysts. We revealed that the higher content of pyrrolic/pyridone nitrogen (N5) and carboxyl-anhydride oxygen could effectively promote the higher selectivity and yield of H2O2. By changing the volume ratio of the concentrated H2SO4 and HNO3, the content of N5 and surface oxygen containing groups on ACF were selectively tuned. The ACF catalyst with the highest N5 content and abundant carboxyl-anhydride oxygen containing groups was demonstrated to have the highest activity toward catalytic H2O2 production, enabling the selectivity of H2O2 over 99.3% and the concentration of H2O2 reaching 123 mmol/L. The crucial effects of nitrogen species were expounded by the correlation of the selectivity of H2O2 with the content of N5 from X-ray photoelectron spectroscopy (XPS). The possible reaction pathway over ACF catalysts promoted by N5 was also shown.

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