Preparation and enhanced electrocatalytic activity of graphene supported palladium nanoparticles with multi-edges and corners

RSC Advances ◽  
2016 ◽  
Vol 6 (101) ◽  
pp. 98708-98716 ◽  
Author(s):  
Zhelin Liu ◽  
Yinghui Feng ◽  
Xiaofeng Wu ◽  
Keke Huang ◽  
Shouhua Feng ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrocatalytic Activity ◽  
Palladium Nanoparticles ◽  
Pd Nanoparticles ◽  
Reduced Graphene ◽  
Point Discharge ◽  
Supported Palladium ◽  
Activity Point

Pd nanoparticles with multi-edges and corners are prepared and assembled on reduced graphene oxide to examine the electrocatalytic activity. Point discharge is regarded to be capable of facilitating the electron transfer.

scholarly journals Green Synthesis of Reduced Graphene Oxide-Supported Palladium Nanoparticles by Coleus amboinicus and Its Enhanced Catalytic Efficiency and Antibacterial Activity

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 134
Author(s):  
Koduru Mallikarjuna ◽  
Lebaka Veeranjaneya Reddy ◽  
Sarah Al-Rasheed ◽  
Arifullah Mohammed ◽  
Sreedevi Gedi ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Palladium Nanoparticles ◽  
Catalytic Efficiency ◽  
Tem Analysis ◽  
Reduced Graphene ◽  
Supported Palladium ◽  
Medical Disciplines ◽  
Coleus Amboinicus

Novel reduced graphene oxide-supported palladium nanoparticles (RGO-PN) were synthesized under ultrasonication, a method that utilizes Coleus amboinicus as a bio-reduction agent. Green synthesized RGO-PN nanoparticles with a crystallite size in the range of 40–50 nm were confirmed in X-ray diffraction (XRD) spectra. RGO-PN show an absorption peak at 220 nm while reduced graphene oxide (RGO) shows its maximal absorbance at 210 nm. The scanning electron microscope image revealed that 40-nm-sized spherical-shaped palladium nanoparticles stick well to reduced graphene oxide sheets, which is consistent and correlated well with the XRD pattern. Moreover, a high-resolution morphological image of RGO-PN100 was obtained by TEM analysis, which shows the anchoring of palladium nanoparticles (PN) on RGO nanosheets. Green synthesized RGO-PN100 nanoparticles from Coleus amboinicus show better reduction kinetics for 4-nitrophenol at 40 min, suggesting that RGO-PN prepared from Coleus amboinicus serve as an excellent catalytic reducing agent. Furthermore, they show remarkable antibacterial activity against Escherichia coli (ATCC 25922). Thus, green synthesized RGO-supported palladium nanoparticles demonstrated that enhanced catalytic activity and antibacterial activity both play an important role in the environmental and medical disciplines.

Microwave-assisted aqueous carbon–carbon cross-coupling reactions of aryl chlorides catalysed by reduced graphene oxide supported palladium nanoparticles

2020 ◽  
Vol 22 (10) ◽  
pp. 3239-3247 ◽  
Author(s):  
Qingxiao Zhang ◽  
Zhan Mao ◽  
Kaixuan Wang ◽  
Nam Thanh Son Phan ◽  
Fang Zhang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Palladium Nanoparticles ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Aryl Chlorides ◽  
Microwave Assisted ◽  
Cross Coupling Reactions ◽  
Reduced Graphene ◽  
Supported Palladium

Microwave-assisted reduced graphene oxide supported palladium nanoparticles can efficiently promote aqueous Ullmann and Suzuki coupling reactions of aryl chlorides.

Small size Mo2C nanocrystal coupled with reduced graphene oxide enhance the electrochemical activity of palladium nanoparticles towards methanol oxidation reaction

2016 ◽  
Vol 6 (19) ◽  
pp. 7316-7322 ◽  
Author(s):  
Chunyong He ◽  
Juzhou Tao ◽  
Guoqiang He ◽  
Pei Kang Shen ◽  
Yongfu Qiu
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Heterogeneous Catalyst ◽  
Palladium Nanoparticles ◽  
Oxidation Reaction ◽  
Pd Nanoparticles ◽  
Methanol Oxidation Reaction ◽  
Co Catalyst ◽  
Reduced Graphene ◽  
Highly Dispersed

A small-sized Mo2C nanoparticle on reduced graphene oxide (RGO) nanosheet hybrid (Mo2C–RGO) was applied as a co-catalyst to Pd nanoparticles to form a highly dispersed heterogeneous catalyst (Pd/Mo2C–RGO).

Poly(diallyldimethylammonium chloride)-functionalized reduced graphene oxide supported palladium nanoparticles for enhanced methanol oxidation

RSC Advances ◽  
2015 ◽  
Vol 5 (42) ◽  
pp. 32983-32989 ◽  
Author(s):  
Yan Hong Xue ◽  
Wei Jiang Zhou ◽  
Lan Zhang ◽  
Miao Li ◽  
Siew Hwa Chan
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Methanol Oxidation ◽  
Alkaline Medium ◽  
Palladium Nanoparticles ◽  
Diallyldimethylammonium Chloride ◽  
Reduced Graphene ◽  
Supported Palladium ◽  
Nano Size

PDDA-functionalized rGO supported nano-size Pd particles show superior MOR activity in alkaline medium.

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