scholarly journals Rapid production of Pd nanoparticle by a marine electrochemically active bacterium Shewanella sp. CNZ-1 and its catalytic performance on 4-nitrophenol reduction

RSC Advances ◽  
2017 ◽  
Vol 7 (65) ◽  
pp. 41182-41189 ◽  
Author(s):  
Haikun Zhang ◽  
Xiaoke Hu
Keyword(s):  
Catalytic Performance ◽  
Pd Nanoparticle ◽  
Nitrophenol Reduction ◽  
Electrochemically Active ◽  
Rapid Production ◽  
Active Bacterium ◽  
Physical And Chemical

Microbial recovery of Pd through Pd(ii) reduction is emerging as a clean alternative to traditional physical and chemical reclaiming treatments.

One-step melamine-assisted synthesis of graphene-supported AuPt@Au nanocrystals for enhanced catalytic reduction of p-nitrophenol

RSC Advances ◽  
2015 ◽  
Vol 5 (116) ◽  
pp. 96028-96033 ◽  
Author(s):  
Qi Liu ◽  
Yan-Ru Xu ◽  
Ai-Jun Wang ◽  
Jiu-Ju Feng
Keyword(s):  
Catalytic Reduction ◽  
Catalytic Performance ◽  
Core Shell ◽  
Nitrophenol Reduction ◽  
One Step

Core–shell AuPt@Au NCs/rGO was facilely prepared by a one-step melamine-assisted method, which exhibited enhanced catalytic performance for p-nitrophenol reduction.

Ultrafine Pd Nanoparticles Synthesis and Catalytic Performance in Methane Partial Oxidation

2011 ◽  
Vol 284-286 ◽  
pp. 1905-1908
Author(s):  
Bao Song Fu ◽  
Hu Liu ◽  
Guo Min Xiao
Keyword(s):  
Partial Oxidation ◽  
Palladium Nanoparticles ◽  
Oxidation Reaction ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Methane Partial Oxidation ◽  
Narrow Size Distribution ◽  
Pd Nanoparticle ◽  
Partial Oxidation Reaction ◽  
Nanoparticles Synthesis

Narrow size distribution Palladium nanoparticles was synthesized by adding Pd precursor into a modified PMHS polymer solution, and then jelled by aluminium. The multi-functional polymer was characterized by NMR; Pd nanoparticle samples were characterized by TEM and catalytic activity was tested in methane partial oxidation reaction.

One-pot solvothermal synthesis of bimetallic yolk–shell Ni@PtNi nanocrystals supported on reduced graphene oxide and their excellent catalytic properties for p-nitrophenol reduction

2016 ◽  
Vol 40 (3) ◽  
pp. 2315-2320 ◽  
Author(s):  
Li-Ping Mei ◽  
Rui Wang ◽  
Pei Song ◽  
Jiu-Ju Feng ◽  
Zhi-Gang Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Solvothermal Synthesis ◽  
Catalytic Properties ◽  
Solvothermal Method ◽  
Catalytic Performance ◽  
One Pot ◽  
Nitrophenol Reduction ◽  
Reduced Graphene

Bimetallic yolk–shell Ni@PtNi NC-rGO were facilely prepared by a one-pot solvothermal method, which exhibited enhanced catalytic performance for p-nitrophenol reduction.

A new electrochemically active bacterium phylogenetically related to Tolumonas osonensis and power performance in MFCs

2013 ◽  
Vol 139 ◽  
pp. 141-148 ◽  
Author(s):  
Jianmei Luo ◽  
Jia Yang ◽  
Huanhuan He ◽  
Tao Jin ◽  
Li Zhou ◽  
...  
Keyword(s):  
Power Performance ◽  
Electrochemically Active ◽  
Active Bacterium

Facet-dependent Catalysis of CuNi Nanocatalysts toward 4–Nitrophenol Reduction Reaction

MRS Advances ◽  
2020 ◽  
Vol 5 (27-28) ◽  
pp. 1491-1496
Author(s):  
Can Li ◽  
Yiliang Luan ◽  
Bo Zhao ◽  
Amar Kumbhar ◽  
Xiaobo Chen ◽  
...  
Keyword(s):  
Sodium Borohydride ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
High Rate ◽  
Colloidal Synthesis ◽  
Pseudo First Order Reaction ◽  
Nitrophenol Reduction ◽  
Crystallographic Facets ◽  
Capping Ligands ◽  
Synthesis Approach

ABSTRACTWe report a facile method to fabricate CuNi nano-octahedra and nanocubes using a colloidal synthesis approach. The CuNi nanocrystals terminated with exclusive crystallographic facets were controlled and achieved by a group of synergetic capping ligands in a hot solution system. Specifically, the growth of {111}-bounded CuNi nano-octahedra is derived by a thermodynamic control, whereas the generation of {100}-terminated CuNi nanocubes is steered by a kinetic capping of chloride. Using a reduction of 4-nitrophenol with sodium borohydride as a model reaction, CuNi nano-octahedra and nanocubes demonstrated a strong facet-dependence due to their different surface energies although both exhibited remarkable catalytic activity with the high rate constant over mass (k/m). A kinetic study indicated that this is a pseudo first-order reaction with an excess of sodium borohydride. CuNi nanocubes as the catalysts showed better catalytic performance (k/m = 385 s-1•g-1) than the CuNi nano-octahedra (k/m = 120 s-1•g-1), indicating that 4-nitrophenol and hydrogen were adsorbed on the {100} facets with their molecules parallel to the surface much easier than those on {111} facets.

scholarly journals Synthesis of Pd-M@HCS(M = Co, Ni, Cu) Bimetallic Catalysts and Their Catalytic Performance for Direct Synthesis of H2O2

Catalysts ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 303
Author(s):  
Yaodan Wang ◽  
Hongyan Pan ◽  
Qian Lin ◽  
Yongyong Shi ◽  
Jiesong Zhang
Keyword(s):  
Bimetallic Catalysts ◽  
Direct Synthesis ◽  
Catalytic Performance ◽  
Carbon Sphere ◽  
Shell Layer ◽  
Pd Nanoparticle ◽  
Catalytic Activities ◽  
The Core ◽  
Economic Process ◽  
Hollow Carbon

Hydrogen peroxide (H2O2), as a clean and green oxidant, is widely used in many fields. The direct synthesis of H2O2 (DSHP) from H2 and O2 has attracted most research interest because it relates to a facile, environmentally friendly, and economic process. Yolk–shell Pd-M@HCS (hollow carbon sphere) (M = Co, Ni, Cu) nanocatalysts, in which the bimetal nanoparticle is the core and porous carbon works as the shell layer, are reported in this work. It was found that catalytic activities were enhanced because of the introduced M metals. Additionally, the different mass ratios of Pd to Co (mPd/mCo) were further investigated to improve the catalytic performance for the DSHP. When mPd/mCo was 4.4, the prepared Pd-Co@HCS-(4.4) catalyst, with an average Pd nanoparticle size of 7.30 nm, provided the highest H2O2 selectivity of 87% and H2O2 productivity of 1996 mmolgPd−1·h−1, which were increased by 24% and 253%, respectively, compared to Pd@HCS.

scholarly journals A Mini Review of the Preparation and Photocatalytic Properties of Two-Dimensional Materials

2020 ◽  
Vol 8 ◽  
Author(s):  
Shuhua Hao ◽  
Xinpei Zhao ◽  
Qiyang Cheng ◽  
Yupeng Xing ◽  
Wenxuan Ma ◽  
...  
Keyword(s):  
Active Sites ◽  
2D Materials ◽  
Chemical Properties ◽  
Metal Sulfide ◽  
Catalytic Performance ◽  
Theoretical Research ◽  
Single Atom ◽  
Preparation Methods ◽  
Two Dimensional Materials ◽  
Physical And Chemical

The successful preparation and application of graphene shows that it is feasible for the materials with a thickness of a single atom or few atomic layers to exist stably in nature. These materials can exhibit unusual physical and chemical properties due to their special dimension effects. At present, researchers have made great achievements in the preparation, characterization, modification, and theoretical research of 2D materials. Because the structure of 2D materials is often similar, it has a certain degree of qualitative versatility. Besides, 2D materials often carry good catalytic performance on account of their more active sites and adjustable harmonic electronic structure. In this review, taking 2D materials as examples [graphene, boron nitride (h-BN), transition metal sulfide and so on], we review the crystal structure and preparation methods of these materials in recent years, focus on their photocatalyst properties (carbon dioxide reduction and hydrogen production), and discuss their applications and development prospects in the future.

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