Nickel-cobalt derived nanowires/nanosheets as electrocatalyst for efficient H2 generation via urea oxidation reaction

2022 ◽  
Vol 891 ◽  
pp. 161790
Author(s):  
Yuanjian Liu ◽  
Jibiao Guan ◽  
Wubin Chen ◽  
Yudong Wu ◽  
Shanshan Li ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
H2 Generation ◽  
Nickel Cobalt

Sulfurization-induced edge amorphization in copper–nickel–cobalt layered double hydroxide nanosheets promoting hydrazine electro-oxidation

2019 ◽  
Vol 7 (42) ◽  
pp. 24437-24444 ◽  
Author(s):  
Weiwei Liu ◽  
Junfeng Xie ◽  
Yanqing Guo ◽  
Shanshan Lou ◽  
Li Gao ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Water Splitting ◽  
Layered Double Hydroxide ◽  
Oxidation Reaction ◽  
Energy Conversion Efficiency ◽  
High Energy ◽  
Nickel Cobalt ◽  
High Energy Conversion Efficiency ◽  
Electro Oxidation ◽  
Double Hydroxide

The electrocatalytic hydrazine oxidation reaction (HzOR) has drawn extensive attention due to its high energy conversion efficiency and wide applications in hydrazine-assisted water splitting and direct hydrazine fuel cells (DHFC).

A three-dimensional nickel–cobalt oxide nanomaterial as an enzyme-mimetic electrocatalyst for the glucose and lactic acid oxidation reaction

2019 ◽  
Vol 43 (37) ◽  
pp. 14756-14762 ◽  
Author(s):  
Rajasekaran Elakkiya ◽  
Govindhan Maduraiveeran
Keyword(s):  
Lactic Acid ◽  
Cobalt Oxide ◽  
Oxidation Reaction ◽  
Three Dimensional ◽  
Acid Oxidation ◽  
Nickel Cobalt ◽  
Enzyme Mimicking ◽  
Nickel Cobalt Oxide ◽  
Oxidation Of Glucose ◽  
Highly Porous

Here we demonstrate a highly porous three-dimensional nickel–cobalt oxide (NiCo2O4) nanomaterial as a potential glucose oxidase (GOx) enzyme-mimicking catalyst for the electrochemical oxidation of glucose and lactic acid in alkaline medium.

Scanning Electron Microscope Study of Bacteria on Mineral Surfaces

1976 ◽  
Vol 34 ◽  
pp. 130-131
Author(s):  
V.K. Berry
Keyword(s):  
Oxidation Reaction ◽  
Electron Microscope Study ◽  
Elemental Sulfur ◽  
Thiobacillus Ferrooxidans ◽  
Physical Contact ◽  
Metal Sulfides ◽  
Low Grade ◽  
Mineral Surfaces ◽  
Mineral Surface ◽  
Scanning Electron Microscope Study

There are two strains of bacteria viz. Thiobacillus thiooxidansand Thiobacillus ferrooxidanswidely mentioned to play an important role in the leaching process of low-grade ores. Another strain used in this study is a thermophile and is designated Caldariella .These microorganisms are acidophilic chemosynthetic aerobic autotrophs and are capable of oxidizing many metal sulfides and elemental sulfur to sulfates and Fe2+ to Fe3+. The necessity of physical contact or attachment by bacteria to mineral surfaces during oxidation reaction has not been fairly established so far. Temple and Koehler reported that during oxidation of marcasite T. thiooxidanswere found concentrated on mineral surface. Schaeffer, et al. demonstrated that physical contact or attachment is essential for oxidation of sulfur.

MAGNETIC PROPERTIES OF NICKEL-COPPER AND NICKEL-COBALT ALLOYS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1937-C8-1938 ◽  
Author(s):  
D. C. Jiles ◽  
T. T. Chang ◽  
D. R. Hougen ◽  
R. Ranjan
Keyword(s):  
Magnetic Properties ◽  
Cobalt Alloys ◽  
Nickel Cobalt ◽  
Nickel Copper

NANOELECTROCATALYSTS BASED PALLADIUM FOR FUEL CELLS WITH DIRECT OXIDATION OF FORMIC ACID

2019 ◽  
Vol 6 (3) ◽  
pp. 104-107
Author(s):  
Marina Vladimirovna Lebedeva ◽  
Alexey Petrovich Antropov ◽  
Alexander Victorovich Ragutkin ◽  
Nicolay Andreevich Yashtulov
Keyword(s):  
Formic Acid ◽  
Palladium Nanoparticles ◽  
Oxidation Reaction ◽  
Electrode Materials ◽  
Formic Acid Oxidation ◽  
Energy Sources ◽  
Acid Oxidation ◽  
Direct Oxidation ◽  
Atomic Force ◽  
Formic Acid Oxidation Reaction

In paper electrode materials with palladium nanoparticles on polymer matrix substrates for energy sources have been formed. Nanocomposites were investigated by atomic force and scanning electron microscopy. The catalytic activity of formed electrodes in the formic acid oxidation reaction was evaluated by voltammetry method.

Impact Of Synthesis Route on the Water Oxidation Kinetics of Hematite Photoanodes

2020 ◽  
Author(s):  
Camilo A. Mesa ◽  
Ludmilla Steier ◽  
Benjamin Moss ◽  
Laia Francàs ◽  
James E. Thorne ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Reaction Kinetics ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Oxidation Reaction ◽  
Charge Accumulation ◽  
Optical Signals ◽  
Current Voltage ◽  
Voltage Performance ◽  
Kinetics Of

<p><i>Operando</i> spectroelectrochemical analysis is used to determine the water oxidation reaction kinetics for hematite photoanodes prepared using four different synthetic procedures. Whilst these photoanodes exhibit very different current / voltage performance, their underlying water oxidation kinetics are found to be almost invariant. Lower photoanode performance was found to correlate with the observation of optical signals indicative of charge accumulation in mid-gap oxygen vacancy states, indicating these states do not contribute directly to water oxidation.</p>

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