scholarly journals Core–shell and alloy integrating PdAu bimetallic nanoplates on reduced graphene oxide for efficient and stable hydrogen evolution catalysts

RSC Advances ◽  
2017 ◽  
Vol 7 (69) ◽  
pp. 43373-43379 ◽  
Author(s):  
Yi Jiang ◽  
Yucong Yan ◽  
Yu Han ◽  
Hui Zhang ◽  
Deren Yang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Chemical Reduction ◽  
Shell Structures ◽  
Galvanic Replacement ◽  
Core Shell ◽  
Reduced Graphene

PdAu nanoplates with different core–shell structures on rGO were generated by manipulating the competition between galvanic replacement and chemical reduction with the alloy and core–shell integrating nanoplates exhibiting superior HER properties.

A microwave-assisted synthesis of CoO@Co core–shell structures coupled with N-doped reduced graphene oxide used as a superior multi-functional electrocatalyst for hydrogen evolution, oxygen reduction and oxygen evolution reactions

2017 ◽  
Vol 5 (12) ◽  
pp. 5865-5872 ◽  
Author(s):  
X. X. Liu ◽  
J. B. Zang ◽  
L. Chen ◽  
L. B. Chen ◽  
X. Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Shell Structure ◽  
Shell Structures ◽  
Microwave Assisted Synthesis ◽  
Core Shell ◽  
Microwave Assisted ◽  
Reduced Graphene ◽  
Core Shell Structure

CoO@Co with a core–shell structure coupled with N-rGO used as a superior multifunctional electrocatalyst was obtained using a convenient and controllable technique.

Co3ZnC core–shell nanoparticle assembled microspheres/reduced graphene oxide as an advanced electrocatalyst for hydrogen evolution reaction in an acidic solution

2015 ◽  
Vol 3 (20) ◽  
pp. 11066-11073 ◽  
Author(s):  
Lianbo Ma ◽  
Xiaoping Shen ◽  
Jun Zhu ◽  
Guoxing Zhu ◽  
Zhenyuan Ji
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Acidic Solution ◽  
Core Shell ◽  
Reduced Graphene

A novel Co3ZnC/RGO composite with excellent electrocatalytic activity toward HER was prepared through an effective two-step strategy.

Synergistic effect of ceria on the structure and hydrogen evolution activity of nickel nanoparticles grown on reduced graphene oxide

2017 ◽  
Vol 5 (17) ◽  
pp. 8108-8116 ◽  
Author(s):  
Mohammad Zhiani ◽  
Saeedeh Kamali
Keyword(s):  
Graphene Oxide ◽  
Synergistic Effect ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Nickel Nanoparticles ◽  
Chemical Reduction ◽  
Reduction Procedure ◽  
Oxide Composite ◽  
Reduced Graphene

A facile chemical reduction procedure for the synthesis of nickel nanoparticles on a ceria–reduced graphene oxide composite (ceria–rGO) was reported and the rule of the ceria in HER was discussed.

scholarly journals A Facile and Green Synthesis of a MoO2-Reduced Graphene Oxide Aerogel for Energy Storage Devices

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 594 ◽  
Author(s):  
Mara Serrapede ◽  
Marco Fontana ◽  
Arnaud Gigot ◽  
Marco Armandi ◽  
Glenda Biasotto ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Photoelectron Spectroscopy ◽  
Electrochemical Impedance ◽  
Chemical Reduction ◽  
Low Cost ◽  
Xps Analysis ◽  
3D Scaffold ◽  
Energy Storage Devices ◽  
Reduced Graphene

A simple, low cost, and “green” method of hydrothermal synthesis, based on the addition of l-ascorbic acid (l-AA) as a reducing agent, is presented in order to obtain reduced graphene oxide (rGO) and hybrid rGO-MoO2 aerogels for the fabrication of supercapacitors. The resulting high degree of chemical reduction of graphene oxide (GO), confirmed by X-Ray Photoelectron Spectroscopy (XPS) analysis, is shown to produce a better electrical double layer (EDL) capacitance, as shown by cyclic voltammetric (CV) measurements. Moreover, a good reduction yield of the carbonaceous 3D-scaffold seems to be achievable even when the precursor of molybdenum oxide is added to the pristine slurry in order to get the hybrid rGO-MoO2 compound. The pseudocapacitance contribution from the resulting embedded MoO2 microstructures, was then studied by means of CV and electrochemical impedance spectroscopy (EIS). The oxidation state of the molybdenum in the MoO2 particles embedded in the rGO aerogel was deeply studied by means of XPS analysis and valuable information on the electrochemical behavior, according to the involved redox reactions, was obtained. Finally, the increased stability of the aerogels prepared with l-AA, after charge-discharge cycling, was demonstrated and confirmed by means of Field Emission Scanning Electron Microscopy (FESEM) characterization.

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