Enhancing the electrocatalytic activity of CoO for the oxidation of 5-hydroxymethylfurfural by introducing oxygen vacancies

2020 ◽  
Vol 22 (3) ◽  
pp. 843-849 ◽  
Author(s):  
Xin Huang ◽  
Jinliang Song ◽  
Manli Hua ◽  
Zhenbing Xie ◽  
Shuaishuai Liu ◽  
...  
Keyword(s):  
Electrocatalytic Activity ◽  
Electrocatalytic Oxidation ◽  
Oxygen Vacancies ◽  
Se Doping ◽  
Furandicarboxylic Acid

The activity of CoO for the electrocatalytic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid could be significantly enhanced by introducing oxygen vacancies via Se doping.

Surface electrochemistry and electrocatalytic activity of ion pairs formed from oppositely-charged phthalocyanine and porphyrin species

2007 ◽  
Vol 11 (03) ◽  
pp. 151-159 ◽  
Author(s):  
Junsheng Chen ◽  
A. B. P. Lever
Keyword(s):  
Electrochemical Properties ◽  
Electrode Surface ◽  
Electrocatalytic Activity ◽  
Electrocatalytic Oxidation ◽  
Graphite Electrode ◽  
Ion Pairs ◽  
Oxalate Anion ◽  
Surface Electrochemistry ◽  
The Individual ◽  
Oppositely Charged

Self-assembled ion pairs are deposited onto a graphite electrode surface by dipping the electrode sequentially into phthalocyanine cations and anions, or a phthalocyanine cation and porphyrin anion. The electrochemical properties of these surface-bound ion pairs are compared with the properties of the individual surface-bound components. The order of deposition is shown to be crucial, implying that these species lie flat on the surface. A detailed study of the electrocatalytic oxidation of oxalate anion is used to explore their reactivity as a function of deposition order.

Electrocatalytic oxidation of water by a self-assembled oxovanadium(iv) complex modified gold electrode

2015 ◽  
Vol 5 (12) ◽  
pp. 5100-5104 ◽  
Author(s):  
Koushik Barman ◽  
Sk Jasimuddin
Keyword(s):  
Water Oxidation ◽  
Electrocatalytic Activity ◽  
Gold Electrode ◽  
Electrocatalytic Oxidation ◽  
Neutral Ph ◽  
Self Assembled

An oxovanadium(iv) complex modified gold electrode showed efficient electrocatalytic activity towards water oxidation at neutral pH.

Electrocatalytic Oxidation of Biomass-derived 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic acid Coupled with H2 Evolution

2021 ◽  
Vol 25 ◽  
Author(s):  
Ye Meng ◽  
Hu Li
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Oxidation ◽  
Value Added ◽  
Energy Crisis ◽  
Redox Mediators ◽  
Hydrogen Fuel ◽  
H2 Evolution ◽  
Fossil Energy ◽  
Furandicarboxylic Acid

: Simultaneous electrocatalytic conversion of biomass into high-value products and electrolysis of water for hydrogen are promising strategies to relieve the fossil energy crisis. Herein, we overview the recent advances and perspectives in the electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) and water reduction to synchronously produce value-added 2,5-furandicarboxylic acid (FDCA) and hydrogen fuel. Two strategies of bifunctional electrocatalysts and redox mediators are discussed. Oxidation of HME to FDCA was found to be more thermodynamically and kinetically favorable than the oxygen evolution reaction (OER). Moreover, the opportunities and challenges brought by them are presented.

Electrocatalytic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid on supported Au and Pd bimetallic nanoparticles

2014 ◽  
Vol 16 (8) ◽  
pp. 3778-3786 ◽  
Author(s):  
David J. Chadderdon ◽  
Le Xin ◽  
Ji Qi ◽  
Yang Qiu ◽  
Phani Krishna ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Electrocatalytic Oxidation ◽  
Bimetallic Nanoparticles ◽  
Electrochemical Methods ◽  
Furandicarboxylic Acid ◽  
Effect Of Pd

Electrocatalytic oxidation of HMF to FDCA was achieved on Pd/C, Au/C and Pd–Au/C catalysts and the synergistic effect of Pd–Au alloying is clearly demonstrated with electrochemical methods.

Heterogeneous Co(OH)2 nanoplates/Co3O4 nanocubes enriched with oxygen vacancies enable efficient oxygen evolution reaction electrocatalysis

Nanoscale ◽  
2018 ◽  
Vol 10 (39) ◽  
pp. 18468-18472 ◽  
Author(s):  
Hui Xu ◽  
Jingjing Wei ◽  
Min Zhang ◽  
Chaofan Liu ◽  
Yukihide Shiraishi ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Electrocatalytic Activity ◽  
Oxygen Vacancies

The heterogeneous Co(OH)2 nanoplate/Co3O4 nanocube hybrids with rich oxygen vacancies display excellent electrocatalytic activity and durability towards the OER, holding great potential for practical water oxidation.

scholarly journals Hydrothermal fabrication of natural sun light active Dy2WO6 doped ZnO and its enhanced photo-electrocatalytic activity and self-cleaning properties

RSC Advances ◽  
2017 ◽  
Vol 7 (13) ◽  
pp. 7509-7518 ◽  
Author(s):  
Kuppulingam Thirumalai ◽  
Manohar Shanthi ◽  
Meenakshisundaram Swaminathan
Keyword(s):  
Photocatalytic Degradation ◽  
Azo Dyes ◽  
Electrocatalytic Activity ◽  
Electrocatalytic Oxidation ◽  
Hydrothermal Process ◽  
Oxidation Of Methanol ◽  
Template Free ◽  
Doped Zno ◽  
Self Cleaning ◽  
Sun Light

Dy2WO6 doped ZnO, fabricated by template free hydrothermal process, reveals enhanced efficiency in solar photocatalytic degradation of azo dyes, electrocatalytic oxidation of methanol and hydrophobicity.

Nanoengineered Electrodes for Biomass-Derived 5-Hydroxymethylfurfural Electrocatalytic Oxidation to 2,5-Furandicarboxylic Acid

2021 ◽  
Vol 9 (5) ◽  
pp. 1970-1993
Author(s):  
Dimitrios A. Giannakoudakis ◽  
Juan Carlos Colmenares ◽  
Dimitrios Tsiplakides ◽  
Konstantinos S. Triantafyllidis
Keyword(s):  
Electrocatalytic Oxidation ◽  
Furandicarboxylic Acid

scholarly journals Cobalt Boride/g-C3N4 Nanosheets-Assisted Electrocatalytic Oxidation of 5-Hydroxymethylfurfural into 2,5-Furandicarboxylic Acid

Catalysts ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1241
Author(s):  
Mohammed A. Suliman ◽  
Chanbasha Basheer ◽  
Wasif Farooq
Keyword(s):  
Liquid Chromatography ◽  
Electrocatalytic Oxidation ◽  
Nickel Foam ◽  
Faradaic Efficiency ◽  
Hydroxymethyl Furfural ◽  
Constant Potential ◽  
Cobalt Boride ◽  
Electrochemical Production ◽  
Furandicarboxylic Acid ◽  
A Current

The electrochemical production of 2,5-furandicarboxylic acid (FDCA) from 5-(hydroxymethyl)furfural (HMF) is receiving growing attention. The FDCA-based polyethylene 2,5-furan dicarboxylate (PEF) polymer is a green candidate for substituting polyethylene terephthalate. This work demonstrated a highly efficient CoB/g-C3N4 nanosheet on the surface of the nickel foam as an electrode for the HMF electrooxidation reaction. Electrolysis at a constant potential combined with liquid chromatography showed the formation of FDCA with a yield of 97% with an excellent faradaic efficiency of near 95%. CoB/g-C3N4 achieved a current density of 20 mA cm−2 for HMF oxidation in 1.0 M KOH with 10 mM HMF at 1.37 V vs. RHE before the competing oxygen evolution reaction. The electrocatalyst was effectively reused up to three times without compromising efficiency. This work demonstrates a cheap and active electrocatalyst material for the electrochemical formation of FDCA from HMF and gives perception into the reaction mechanism.

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