Catalytic enhancement on Ti–Zr complex oxide particles for electrochemical hydrogenation of oxalic acid to produce an alcoholic compound by controlling electronic states and oxide structures

2019 ◽  
Vol 9 (23) ◽  
pp. 6561-6565 ◽  
Author(s):  
M. Yamauchi ◽  
S. Hata ◽  
H. Eguchi ◽  
S. Kitano ◽  
T. Fukushima ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Glycolic Acid ◽  
Electronic States ◽  
Complex Oxide ◽  
Electrochemical Hydrogenation ◽  
Direct Power ◽  
Oxide Particles ◽  
Power Storage ◽  
Catalytic Performances

Ti0.9Zr0.1O2 complex oxide particles exhibit superior catalytic performances for the direct power storage into glycolic acid via electroreduction of oxalic acid due to favorable crystallinity.

Direct Power Charge and Discharge Using the Glycolic Acid/Oxalic Acid Redox Couple toward Carbon-Neutral Energy Circulation

2017 ◽  
Vol 75 (43) ◽  
pp. 17-21 ◽  
Author(s):  
Miho Yamauchi ◽  
Ryota Watanabe ◽  
Shinichi Hata ◽  
Syo Kitano ◽  
Masaaki Sadakiyo ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Glycolic Acid ◽  
Redox Couple ◽  
Direct Power ◽  
Carbon Neutral

scholarly journals Oxidation of Glyoxylic Acid to Oxalic Acid by Glycolic Acid Oxidase

1961 ◽  
Vol 236 (5) ◽  
pp. 1280-1284
Author(s):  
K.E. Richardson ◽  
N.E. Tolbert
Keyword(s):  
Oxalic Acid ◽  
Glycolic Acid ◽  
Glyoxylic Acid ◽  
Acid Oxidase

Characterization of oxide particles in ODS austenitic stainless steel after heavy ion irradiation up to high doses

2011 ◽  
Vol 1298 ◽  
Author(s):  
Hiroshi Oka ◽  
Yosuke Yamazaki ◽  
Hiroshi Kinoshita ◽  
Naoyuki Hashimoto ◽  
Somei Ohnuki ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Ion Irradiation ◽  
Hot Extrusion ◽  
Oxide Dispersion Strengthened ◽  
Complex Oxide ◽  
Heavy Ion ◽  
Oxide Particles ◽  
The Difference ◽  
High Doses

ABSTRACTOxide dispersion strengthened austenitic stainless steel (ODS316), which is based on advanced SUS316 steel, has been developed by mechanically alloying and hot extrusion. Hafnium and titanium were added to make a fine distribution of oxide particles. The stability of oxide particles dispersed in ODS316 under irradiation was evaluated after 250 keV Fe+ irradiation up to high doses at 500 °C. TEM observation and EDS analysis indicated that fine complex oxide particles with Y, Hf and Ti were mainly dispersed in the matrix. There are no significant changes in the distribution and the size of oxide particles after irradiation. It was also revealed that the constitution ratio of Ti in complex oxide appeared to be decreased after irradiation. This diffuse-out of Ti during irradiation could be explained by the difference in oxide formation energy among alloying elements.

Preparation and Characterization of Ultrafine Rare Earth Molybdenum Complex Oxide Particles

1998 ◽  
Vol 140 (2) ◽  
pp. 354-360 ◽  
Author(s):  
Wenxing Kuang ◽  
Yining Fan ◽  
Kaiwen Yao ◽  
Yi Chen
Keyword(s):  
Rare Earth ◽  
Complex Oxide ◽  
Molybdenum Complex ◽  
Oxide Particles

scholarly journals Treatment of Ethylene Glycol Poisoning with Oral Ethyl Alcohol

2019 ◽  
Vol 2019 ◽  
pp. 1-3
Author(s):  
B. Achappa ◽  
D. Madi ◽  
T. Kanchan ◽  
N. K. Kishanlal
Keyword(s):  
Oxalic Acid ◽  
Ethylene Glycol ◽  
Ethyl Alcohol ◽  
Glycolic Acid ◽  
Clinical Suspicion ◽  
Toxic Metabolites ◽  
Ethylene Glycol Poisoning ◽  
High Degree

Ethylene glycol poisoning is not uncommon in India. The ill effects are primarily caused by its toxic metabolites: glycolic acid and oxalic acid. A 70-year-old female presented to our hospital with ataxia after ingestion of ethylene glycol. The reported case describes the management of ethylene glycol poisoning using oral ethyl alcohol as an alternative to the recommended intravenous ethyl alcohol and fomepizole that are not available for use in India. The need for high degree of clinical suspicion, targeted investigations, and early instigation of treatment is of prime importance in cases of ethylene glycol poisoning as it can lead to long-term complications or even death.

scholarly journals Hydrogenation of oxalic acid using light-assisted water electrolysis for the production of an alcoholic compound

2016 ◽  
Vol 18 (13) ◽  
pp. 3700-3706 ◽  
Author(s):  
Sho Kitano ◽  
Miho Yamauchi ◽  
Shinichi Hata ◽  
Ryota Watanabe ◽  
Masaaki Sadakiyo
Keyword(s):  
Oxalic Acid ◽  
Electrochemical Reduction ◽  
Glycolic Acid ◽  
Water Electrolysis ◽  
Light Energy ◽  
Electro Oxidation ◽  
First Time

We demonstrate the production of glycolic acid, an industrially important alcoholic compound, via the electrochemical reduction of oxalic acid, which is procurable from biomass, and electro-oxidation of water with the help of renewable light energy for the first time.

scholarly journals Degradation of 1,4-Dioxane and Cyclic Ethers by an Isolated Fungus

2005 ◽  
Vol 71 (3) ◽  
pp. 1254-1258 ◽  
Author(s):  
Kunichika Nakamiya ◽  
Syunji Hashimoto ◽  
Hiroyasu Ito ◽  
John S. Edmonds ◽  
Masatoshi Morita
Keyword(s):  
Oxalic Acid ◽  
Ethylene Glycol ◽  
Glycolic Acid ◽  
Tricarboxylic Acid Cycle ◽  
Glyoxylic Acid ◽  
Sole Source ◽  
Cordyceps Sinensis ◽  
Mass Spectrometry Analysis ◽  
Cyclic Ethers ◽  
Rrna Gene

ABSTRACT By using 1,4-dioxane as the sole source of carbon, a 1,4-dioxane-degrading microorganism was isolated from soil. The fungus, termed strain A, was able to utilize 1,4-dioxane and many kinds of cyclic ethers as the sole source of carbon and was identified as Cordyceps sinensis from its 18S rRNA gene sequence. Ethylene glycol was identified as a degradation product of 1,4-dioxane by the use of deuterated 1,4-dioxane-d 8 and gas chromatography-mass spectrometry analysis. A degradation pathway involving ethylene glycol, glycolic acid, and oxalic acid was proposed, followed by incorporation of the glycolic acid and/or oxalic acid via glyoxylic acid into the tricarboxylic acid cycle.

scholarly journals Development of new homogeneous photo-Fentoncatalytic systems using oxalic acid and ferric ions in very low concentrations

2021 ◽  
Vol 63 (3) ◽  
pp. 8-14
Author(s):  
Quoc Viet Bui ◽  
◽  
Thuy Vy Phan ◽  
Tien Khoa Le ◽  
◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Industrial Wastewater ◽  
Ph Value ◽  
Type B ◽  
Ferric Ions ◽  
Catalytic Systems ◽  
Practical Applications ◽  
Low Concentrations ◽  
Uva Light ◽  
Catalytic Performances

In this work, we proposed to combine oxalic acid and ferric ions in very low concentrations to create new, economic, and effective homogeneous photo-Fenton catalytic systems for the degradation of methylene blue. The effects of ferric concentration, H2C2O4 concentration, pH, and tert-butanol on the catalytic activity were also investigated. According to the experimental results, Fe3+ ions exhibited impressive catalytic performances in the presence of H2C2O4 at concentrations below type B (5.0 mg.l–1) from the Vietnam National Technical Regulation on Industrial Wastewater. Specifically, a ferric concentration of 3.0 mg.l–1, H2C2O4 concentration of 10–3 mol.l–1, and pH value of 3 were found to be the best conditions for MB degradation under UVA light. Furthermore, owing to a very low concentration of ferric ions, iron sludge formation can be avoided after wastewater treatment, which makes the photo-Fenton process suitable for practical applications.

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