scholarly journals The Dehydrogenation of Formic Acid over Zinc Oxide

1967 ◽  
Vol 40 (11) ◽  
pp. 2722-2722 ◽  
Author(s):  
Yuko Noto ◽  
Kenzo Fukuda ◽  
Takaharu Onishi ◽  
Kenzi Tamaru
Keyword(s):  
Zinc Oxide ◽  
Formic Acid

Conversion of methanol, formaldehyde and formic acid on the polar faces of zinc oxide

1986 ◽  
Vol 176 (1-2) ◽  
pp. 91-114 ◽  
Author(s):  
J.M. Vohs ◽  
M.A. Barteau
Keyword(s):  
Zinc Oxide ◽  
Formic Acid

Efficient reduction of formic acid to formaldehyde by zinc

2019 ◽  
Vol 97 (1) ◽  
pp. 42-45 ◽  
Author(s):  
Nicholas P. Alderman ◽  
Virginie Peneau ◽  
Camilo J. Viasus ◽  
Ilia Korobkov ◽  
Balamurugan Vidjayacoumar ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Formic Acid ◽  
Gas Flow ◽  
Methyl Formate ◽  
Metallic Zinc ◽  
Secondary Products ◽  
Flow Temperature ◽  
Low Concentrations ◽  
Efficient Reduction ◽  
Carrier Gas Flow

The possibility of thermally reducing formic acid to formaldehyde selectively has been probed using metallic zinc. Good selectivity (over 80%) was obtained with low concentrations of formic acid, with methanol and methyl formate as secondary products. The selectivity can be tuned by changing the carrier gas flow, temperature, and zinc amount. Zinc was oxidized to zinc oxide during this process.

Zinc Oxide Morphology‐Dependent Pd/ZnO Catalysis in Base‐Free CO 2 Hydrogenation into Formic Acid

ChemCatChem ◽  
2020 ◽  
Vol 12 (21) ◽  
pp. 5540-5547
Author(s):  
Jing Zhang ◽  
Liping Fan ◽  
Feiyue Zhao ◽  
Yanghe Fu ◽  
Ji‐Qing Lu ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Formic Acid ◽  
Oxide Morphology

Gas phase synthesis of zinc oxide nanocrystals and their surface modification using small and large acidic ligands

2007 ◽  
Vol 1035 ◽  
Author(s):  
Sankhanilay Roy Chowdhury ◽  
Moazzam Ali ◽  
Daniela Sudfeld ◽  
Markus Winterer
Keyword(s):  
Zinc Oxide ◽  
Formic Acid ◽  
Isoelectric Point ◽  
Chemical Vapor ◽  
Nitrogen Adsorption ◽  
X Ray Diffraction ◽  
Laser Scattering ◽  
Phase Synthesis ◽  
Transmission Electron ◽  
Acidic Ligands

AbstractZinc oxide nanocrystals are synthesized using the chemical vapor synthesis (CVS) technique. Diethylzinc is used as zinc precursor. Synthesized zinc oxide nanocrystals are characterized by X-ray diffraction (XRD), nitrogen adsorption and desorption, transmission electron microscopy (TEM) and dynamic laser scattering. As-synthesized zinc oxide has a primary particle size of about 10 nm and an isoelectric point at pH 9.5. The surface of zinc oxide nanocrystals can be modified using short chain organic acids like formic acid and glycine as well as using low molecular weight polyacrylic acid (PAA). The isoelectric point shifts towards acidic pH when glycine is used as surface modifier whereas it shifts towards basic pH with formic acid. The use of PAA eliminates the isoelectric point with very high value of zeta potential over the range of pH studied in these experiments.

The Interaction of Formic Acid with Zinc Oxide: A Combined Experimental and Theoretical Study on Single Crystal and Powder Samples

2015 ◽  
Vol 58 (2-3) ◽  
pp. 174-183 ◽  
Author(s):  
Maria Buchholz ◽  
Qiang Li ◽  
Heshmat Noei ◽  
Alexei Nefedov ◽  
Yuemin Wang ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Formic Acid ◽  
Single Crystal ◽  
Theoretical Study ◽  
Powder Samples

scholarly journals A Review of the Effect of Formic Acid and Its Salts on the Gastrointestinal Microbiota and Performance of Pigs

Animals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 887 ◽  
Author(s):  
Diana Luise ◽  
Federico Correa ◽  
Paolo Bosi ◽  
Paolo Trevisi
Keyword(s):  
Zinc Oxide ◽  
Organic Acids ◽  
Formic Acid ◽  
Antimicrobial Properties ◽  
Finishing Pigs ◽  
Gut Health ◽  
Gastrointestinal Microbiota ◽  
Gastrointestinal Ph ◽  
Mineral Utilization ◽  
And Performance

Out of the alternatives to antibiotics and zinc oxide, organic acids, or simply acidifiers, play significant roles, especially in ensuring gut health and the growth performance of pigs. Regarding acidifiers, formic acid and its salts have shown very promising results in weaning, growing and finishing pigs. Although it is known that the main mechanisms by which acidifiers can improve livestock performance and health are related to the regulation of gastrointestinal pH, an improvement in intestinal digestibility and mineral utilization, and their antimicrobial properties against specific pathogens has been observed, while poor consensus remains in relation to the effect of acidifers on bacteria and the complex microbiome. Therefore, the aim of the present review was to critically evaluate the effects of formic acid and its salts on the performance and the gastrointestinal microbiota balance of pigs.

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