scholarly journals Catalytic Activation of PVP-Stabilized Gold/Silver Cluster on p- Nitrophenol Reduction: A DFT

2018 ◽  
Author(s):  
Madhulata Shukla ◽  
Indrajit Sinha
Keyword(s):  
Silver Cluster ◽  
Catalytic Activation ◽  
Nitrophenol Reduction ◽  
Gold Silver

scholarly journals Borohydride stabilized gold–silver bimetallic nanocatalysts for highly efficient 4-nitrophenol reduction

2019 ◽  
Vol 1 (12) ◽  
pp. 4665-4668 ◽  
Author(s):  
Nathaniel E. Larm ◽  
Jason A. Thon ◽  
Yahor Vazmitsel ◽  
Jerry L. Atwood ◽  
Gary A. Baker
Keyword(s):  
Sodium Borohydride ◽  
Capping Agent ◽  
Molar Ratios ◽  
Highly Efficient ◽  
Nitrophenol Reduction ◽  
Gold Silver ◽  
Bimetallic Nanocatalysts

Bimetallic AuxAg1−x nanoparticles, prepared using sodium borohydride as the sole reducing and capping agent for various NaBH4:metal molar ratios, were investigated as catalysts for 4-nitrophenol reduction.

Crystal structure of a pentanuclear gold-silver cluster complex

1992 ◽  
Vol 22 (4) ◽  
pp. 421-425 ◽  
Author(s):  
Mazhar-Ul-Haque ◽  
William Horne ◽  
Omar M. Abu-Salah
Keyword(s):  
Crystal Structure ◽  
Silver Cluster ◽  
Cluster Complex ◽  
Gold Silver

scholarly journals One-Pot Facile Synthesis of Noble Metal Nanoparticles Supported on rGO with Enhanced Catalytic Performance for 4-Nitrophenol Reduction

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7261
Author(s):  
Xiaolong Zhang ◽  
Shilei Jin ◽  
Yuhan Zhang ◽  
Liyuan Wang ◽  
Yang Liu ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
Measurement Techniques ◽  
Catalytic Performance ◽  
Noble Metal Nanoparticles ◽  
Pt Catalyst ◽  
One Pot ◽  
K Value ◽  
Nitrophenol Reduction ◽  
Gold Silver

In this study, reduced graphene oxide (rGO)-supported noble metal (gold, silver, and platinum) nanoparticle catalysts were prepared via the one-pot facile co-reduction technique. Various measurement techniques were used to investigate the structures and properties of the catalysts. The relative intensity ratios of ID/IG in rGO/Au, rGO/Ag, rGO/Pt, and GO were 1.106, 1.078, 1.047, and 0.863, respectively. The results showed the formation of rGO and that noble metal nanoparticles were decorated on rGO. Furthermore, the catalytic activities of the designed nanocomposites were investigated via 4-nitrophenol. The catalysts were used in 4-nitrophenol reduction. The catalytic performance of the catalysts was evaluated using the apparent rate constant k values. The k value of rGO/Au was 0.618 min−1, which was higher than those of rGO/Ag (0.55 min−1) and rGO/Pt (0.038 min−1). The result proved that the rGO/Au catalyst exhibited a higher catalytic performance than the rGO/Ag catalyst and the rGO/Pt catalyst. The results provide a facile method for the synthesis of rGO-supported nanomaterials in catalysis.

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