Biosynthesis of Ag–Pt bimetallic nanoparticles using propolis extract: Antibacterial effects and catalytic activity on NaBH4 hydrolysis

2021 ◽  
pp. 112622
Author(s):  
Rima Nour Elhouda Tiri ◽  
Fulya Gulbagca ◽  
Aysenur Aygun ◽  
Ali Cherif ◽  
Fatih Sen
Keyword(s):  
Catalytic Activity ◽  
Bimetallic Nanoparticles ◽  
Antibacterial Effects ◽  
Propolis Extract

Electrochemical formation of PtRu bimetallic nanoparticles for highly efficient and pH-universal hydrogen evolution reaction

2020 ◽  
Vol 8 (4) ◽  
pp. 2090-2098 ◽  
Author(s):  
Lu Li ◽  
Gengwei Zhang ◽  
Bin Wang ◽  
Tao Yang ◽  
Shengchun Yang
Keyword(s):  
Catalytic Activity ◽  
Synergistic Effect ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Bimetallic Nanoparticles ◽  
Highly Efficient ◽  
A Performance

The synergistic effect between Pt and Ru in PtRu/CC1500 catalyst results in a promising catalytic activity toward HER, which displays a performance dozens of times higher than that of commercial Pt/C.

Environmentally benign selective hydrogenation of α,β-unsaturated aldehydes and reduction of aromatic nitro compounds using Cu based bimetallic nanoparticles supported on multiwalled carbon nanotubes and mesoporous carbon

RSC Advances ◽  
2016 ◽  
Vol 6 (85) ◽  
pp. 82359-82369 ◽  
Author(s):  
H. N. Hareesh ◽  
K. U. Minchitha ◽  
K. Venkatesh ◽  
N. Nagaraju ◽  
N. Kathyayini
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Activity ◽  
Mesoporous Carbon ◽  
Bimetallic Nanoparticles ◽  
Nitro Compounds ◽  
Environmentally Benign ◽  
Multiwalled Carbon ◽  
Unsaturated Aldehydes ◽  
Aromatic Nitro Compounds ◽  
Aromatic Nitro

The catalytic activity of these materials was investigated in the hydrogenation of α,β-unsaturated aldehydes and reduction of aromatic nitro compounds using different hydrogen sources.

scholarly journals Catalytic performance of Ag, Au and Ag-Au nanoparticles synthesized by lichen extract

2018 ◽  
Vol 7 (5) ◽  
pp. 433-440 ◽  
Author(s):  
Zafer Çıplak ◽  
Ceren Gökalp ◽  
Bengü Getiren ◽  
Atila Yıldız ◽  
Nuray Yıldız
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Fourier Transform ◽  
Catalytic Activity ◽  
Au Nanoparticles ◽  
Bimetallic Nanoparticles ◽  
Catalytic Performance ◽  
Catalytic Activities ◽  
Transmission Electron ◽  
Vis Spectroscopy

Abstract In the present study, the green chemistry approach for the biosynthesis of Ag, Au and Ag-Au bimetallic nanoparticles (NPs) was applied using lichen extract [Cetraria islandica (L.) Ach.]. The lichen extract acts both as a reducing and stabilizing agent. The monometallic and bimetallic NPs were characterized by transmission electron microscopy (TEM), ultraviolet-visible (UV-Vis) spectroscopy and Fourier transform infrared (FTIR) spectroscopy. The results showed that NPs were successfully synthesized and the prepared structures were generally spherical. The synthesized nanostructures exhibited excellent catalytic activities towards reduction of nitrophenols (4-nitrophenol; 4-NP) to aminophenols (4-aminophenol; 4-AP) with sodium borohydride (NaBH4). It was determined that bimetallic NPs exhibit more effective catalytic activity than monometallic Ag and Au nanostructures. This is the first report on 4-NP reduction with Ag, Au and Au-Ag NP catalysts prepared by lichen extract.

Enhanced Catalytic Activity of Poly(N-vinyl-2-pyrrolidone) Stabilized Pt/Ni Bimetallic Nanoparticles for Hydrogen Generation from Basic NaBH4 Solution

2014 ◽  
Vol 3 (3) ◽  
pp. 277-281 ◽  
Author(s):  
Peng Wang ◽  
Sheng Xiang ◽  
Jun Cheng ◽  
Decheng Kong ◽  
Haijun Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Generation ◽  
Bimetallic Nanoparticles

Catalytic activity of Ag/Pd bimetallic nanoparticles immobilized on quartz surfaces

2007 ◽  
Vol 438 (4-6) ◽  
pp. 290-293 ◽  
Author(s):  
Barbara Pergolese ◽  
Maurizio Muniz-Miranda ◽  
Adriano Bigotto
Keyword(s):  
Catalytic Activity ◽  
Bimetallic Nanoparticles
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