scholarly journals ELECTROCHEMICAL BEHAVIOR OF POLYCRYSTALLINE COPPER DURING THE ADSORPTION OF CO ABSTRACT

2017 ◽  
Vol 20 (1) ◽  
pp. 19-26
Author(s):  
J. Salimon ◽  
M. Kalaji
Keyword(s):  
Electrochemical Properties ◽  
Hydrogen Evolution ◽  
Adsorption Process ◽  
Supporting Electrolyte ◽  
Copper Surface ◽  
Polycrystalline Copper ◽  
Cathodic Potential ◽  
Subsequent Formation ◽  
Adsorption Of Co ◽  
Supporting Electrolyte Solution

The electrochemical properties of electrode copper in carbon monoxide-saturated phosphate buffered solution were investigated. The electrochemistry of copper surface was sufficiently changed after the supporting electrolyte solution was saturated with CO. The hydrogen evolution region was depressed and shifted cathodically due to the adsorption process of CO on the copper surface in a linear or terminally bonded manner, Cu-CO . The oxidation and the reduction peaks of copper were significantly changed with two couple of redox peaks. This is due to the subsequent formation and the corresponding reduction of copper(I) and the copper carbon monoxides species. Further changed in electrochemical properties occurred when the electrode surface was polarized at high cathodic potential (-1.4 V) for a period of time (15 min). The hydrogen evolution region was further depressed due to the adsorption of CO process in multiple bonding sites as adsorbed bridge bonded CO, Cu-CO B L that occurred predominantly.

Metal–organic framework-derived CoSe2/(NiCo)Se2 box-in-box hollow nanocubes with enhanced electrochemical properties for sodium-ion storage and hydrogen evolution

2017 ◽  
Vol 5 (35) ◽  
pp. 18823-18830 ◽  
Author(s):  
Seung-Keun Park ◽  
Jin Koo Kim ◽  
Yun Chan Kang
Keyword(s):  
Electrochemical Properties ◽  
Hydrogen Evolution ◽  
Metal Organic Framework ◽  
Sodium Ion ◽  
Zeolitic Imidazolate Framework ◽  
Box Structures ◽  
Ion Storage ◽  
Metal Organic ◽  
Sodium Ion Storage ◽  
Organic Framework

Multishell structured metal selenide nanocubes, namely, Co/(NiCo)Se2 box-in-box structures with different shell compositions, were successfully synthesized by applying zeolitic imidazolate framework-67 (ZIF-67) as a template.

Elektrochemische Eigenschaften von Dihydropyridin-und Pyridinderivaten / Electrochemical Properties of Pyridine and Dihydropyridine Derivatives

1981 ◽  
Vol 36 (3) ◽  
pp. 386-390 ◽  
Author(s):  
G. Abou-Elenien ◽  
J. Rieser ◽  
N. Ismail ◽  
K. Wallenfels
Keyword(s):  
Electrochemical Properties ◽  
Electrochemical Oxidation ◽  
Supporting Electrolyte ◽  
Aqueous Solvent ◽  
Dihydropyridine Derivatives

AbstractThe electrochemical oxidation and reduction properties of different dihydropyridines and pyridines have been investigated in non aqueous solvent as benzonitrile and aceto-nitrile with tetra-n-butylammonium perchlorate as supporting electrolyte at platinium electrodes using DC-voltametry, cycl. voltametry and coulometry. Possible redox-mechanisms are discussed.

Magnetism modulation of Co3S4 towards the efficient hydrogen evolution reaction

2020 ◽  
Vol 5 (2) ◽  
pp. 565-572
Author(s):  
R. Z. Wang ◽  
Yanning Zhang
Keyword(s):  
Electrochemical Properties ◽  
Hydrogen Evolution ◽  
High Spin ◽  
Hydrogen Evolution Reaction ◽  
Highly Efficient

Induced high-spin Co2+ atoms on Co3S4(001) activate the electrochemical properties of adjacent S atoms for the highly-efficient HER.

Rational design of atomically dispersed nickel active sites in β-Mo2C for the hydrogen evolution reaction at all pH values

2018 ◽  
Vol 54 (71) ◽  
pp. 9901-9904 ◽  
Author(s):  
Ting Ouyang ◽  
An-Na Chen ◽  
Zhen-Zhao He ◽  
Zhao-Qing Liu ◽  
Yexiang Tong
Keyword(s):  
Synergistic Effect ◽  
Electrochemical Properties ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Rational Design ◽  
Efficient Catalyst ◽  
Ph Values ◽  
Ni Species

Atomically dispersed Ni in β-Mo2C (Ni/β-Mo2C) is designed as an efficient catalyst for the HER at all pH values. The remarkable electrochemical properties of Ni/β-Mo2C are mainly attributed to the synergistic effect between atomically dispersed Ni species and β-Mo2C.

scholarly journals Toward heterostructured transition metal hybrids with highly promoted electrochemical hydrogen evolution

RSC Advances ◽  
2019 ◽  
Vol 9 (35) ◽  
pp. 19924-19929 ◽  
Author(s):  
Guanhui Gao ◽  
Xiaobin Xie ◽  
Shendong Kang ◽  
Yanhua Lei ◽  
Achim Trampert ◽  
...  
Keyword(s):  
Transition Metal ◽  
Electrochemical Properties ◽  
Hydrogen Evolution ◽  
Low Cost ◽  
Transition Metal Dichalcogenide ◽  
Hydrothermal Approach ◽  
Metal Hybrids ◽  
Sustainable Transition

Low-cost and sustainable transition metal dichalcogenide heterostructures are developed via a hydrothermal approach, which could greatly promote their electrochemical properties for HER performance as electrocatalysts.

The Evolution of the Polycrystalline Copper Surface, First to Cu(111) and Then to Cu(100), at a Fixed CO2RR Potential: A Study by Operando EC-STM

Langmuir ◽  
2014 ◽  
Vol 30 (50) ◽  
pp. 15053-15056 ◽  
Author(s):  
Youn-Geun Kim ◽  
Jack Hess Baricuatro ◽  
Alnald Javier ◽  
John Mathew Gregoire ◽  
Manuel P. Soriaga
Keyword(s):  
Copper Surface ◽  
Polycrystalline Copper

Porous CoP concave polyhedron electrocatalysts synthesized from metal–organic frameworks with enhanced electrochemical properties for hydrogen evolution

2015 ◽  
Vol 3 (43) ◽  
pp. 21471-21477 ◽  
Author(s):  
Miao Xu ◽  
Lei Han ◽  
Yujie Han ◽  
You Yu ◽  
Junfeng Zhai ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Hydrogen Evolution ◽  
Metal Organic Frameworks ◽  
Metal Organic

Porous CoP concave polyhedrons were prepared by a topological conversion from Co-MOFs with enhanced electrochemical HER activities.

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