Star-shaped Pd@Pt core–shell catalysts supported on reduced graphene oxide with superior electrocatalytic performance

2014 ◽  
Vol 2 (19) ◽  
pp. 6976-6986 ◽  
Author(s):  
Youngmin Kim ◽  
Yuseong Noh ◽  
Eun Ja Lim ◽  
Seonhwa Lee ◽  
Sung Mook Choi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Reduced Graphene Oxide ◽  
Methanol Oxidation ◽  
Alkaline Media ◽  
Core Shell ◽  
One Pot ◽  
Electrocatalytic Performance ◽  
Reduced Graphene ◽  
Reduction Approach

A surfactantless, one-pot reduction approach for Pd@Pt core–shell nano-stars on reduced graphene oxide with enhanced catalytic activity and stability for methanol oxidation in alkaline media.

Multiwalled carbon nanotube@reduced graphene oxide nanoribbon heterostructure: synthesis, intrinsic peroxidase-like catalytic activity, and its application in colorimetric biosensing

2015 ◽  
Vol 3 (8) ◽  
pp. 1624-1632 ◽  
Author(s):  
Jing Qian ◽  
Xingwang Yang ◽  
Zhenting Yang ◽  
Gangbing Zhu ◽  
Hanping Mao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Carbon Nanotube ◽  
Reduced Graphene Oxide ◽  
Multiwalled Carbon Nanotube ◽  
Core Shell ◽  
Multiwalled Carbon ◽  
Peroxidase Mimetic ◽  
Reduced Graphene ◽  
Colorimetric Biosensing

The MWCNT@rGONR core–shell heterostructure was proved to be a novel peroxidase mimetic and has been used for colorimetric biosensing of cholesterol.

Co3O4 Nanoparticles-Modified α-MnO2 Nanorods Supported on Reduced Graphene Oxide as Cathode Catalyst for Oxygen Reduction Reaction in Alkaline Media

NANO ◽  
2016 ◽  
Vol 11 (11) ◽  
pp. 1650126 ◽  
Author(s):  
GuanHua Jin ◽  
Suqin Liu ◽  
Yaomin Li ◽  
Yang Guo ◽  
Zhiying Ding
Keyword(s):  
Electron Microscopy ◽  
Graphene Oxide ◽  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
X Ray ◽  
Reduced Graphene

Development of efficient electrocatalysts for the oxygen reduction reaction (ORR) remains a key issue for the commercialization of metal-air batteries. In this study, the novel structured Co3O4 nanoparticles-modified [Formula: see text]-MnO2 nanorods supported on reduced graphene oxide (Co3O4-MnO2/rGO) were synthesized with varying amounts of [Formula: see text]-MnO2 via a facile two-step hydrothermal method. The relationship between the physical properties and the electrochemical results was investigated using X-ray diffraction spectrum, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, cyclic voltammograms, electrochemical impedance spectroscopy and rotating disk electrode. The as-prepared Co3O4–MnO2 nanohybrid exhibits enhanced catalytic activity for ORR under alkaline condition compared with MnO2/rGO and Co3O4/rGO. Furthermore, it mainly favors a direct 4e-reaction pathway for ORR, which is attributed to the well-designed structure, the synergistic effect between Co3O4 and [Formula: see text]-MnO2, and the covalent coupling between the Co3O4-MnO2 and reduced graphene oxide. The role of Co3O4 in Co3O4–MnO2 hybrid for catalyzing ORR also has been illustrated by varying the mass ratio of Co3O4 and MnO2, which reveals that the Co3O4–MnO2 with the ratio of 1:1 has better catalytic activity.

Surfactant-free synthesis of reduced graphene oxide supported porous PtAu alloyed nanoflowers with improved catalytic activity

2015 ◽  
Vol 3 (10) ◽  
pp. 5321-5327 ◽  
Author(s):  
Pei Song ◽  
Li-Li He ◽  
Ai-Jun Wang ◽  
Li-Ping Mei ◽  
Shu-Xian Zhong ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Reduced Graphene Oxide ◽  
Reduction Method ◽  
One Pot ◽  
Nitrophenol Reduction ◽  
Reduced Graphene ◽  
Wet Chemical ◽  
Co Reduction

A simple, facile one-pot wet-chemical co-reduction method was developed for synthesis of porous PtAu-nanoflowers/rGO with the assistance of p-aminopyridine. The as-prepared nanocomposites displayed excellent catalytic activity for 4-nitrophenol reduction.

Ultrasmall Ru2P nanoparticles on graphene: a highly efficient hydrogen evolution reaction electrocatalyst in both acidic and alkaline media

2018 ◽  
Vol 54 (27) ◽  
pp. 3343-3346 ◽  
Author(s):  
Tingting Liu ◽  
Shuo Wang ◽  
Qiuju Zhang ◽  
Liang Chen ◽  
Weihua Hu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Alkaline Media ◽  
Graphene Oxide Nanosheets ◽  
Reduced Graphene ◽  
Alkaline Conditions ◽  
Acidic And Alkaline Media

A Pt-free catalyst of ultrasmall Ru2P nanoparticles on reduced graphene oxide nanosheets (Ru2P/RGO-20) shows remarkable HER catalytic activity under acidic and alkaline conditions, respectively, both superior to those of commercial Pt/C.

Highly reduced graphene oxide supported Pt nanocomposites as highly efficient catalysts for methanol oxidation

2015 ◽  
Vol 51 (12) ◽  
pp. 2418-2420 ◽  
Author(s):  
Hongbin Feng ◽  
Yong Liu ◽  
Jinghong Li
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Reduced Graphene Oxide ◽  
Methanol Oxidation ◽  
Solvated Electrons ◽  
Highly Efficient ◽  
Reduced Graphene

The highly reduced graphene oxide by solvated electrons supported Pt nanocomposites shows highly efficient catalytic activity for methanol oxidation.

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