In situ loading of gold nanoparticles on Fe3O4@SiO2 magnetic nanocomposites and their high catalytic activity

Nanoscale ◽  
2013 ◽  
Vol 5 (11) ◽  
pp. 4894 ◽  
Author(s):  
Jinmin Zheng ◽  
Yalei Dong ◽  
Weifeng Wang ◽  
Yanhua Ma ◽  
Jing Hu ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Magnetic Nanocomposites ◽  
High Catalytic Activity

A metal–organic framework with in situ generated low-coordinate binuclear Cu(i) units as a highly effective catalyst for photodriven hydrogen production

2020 ◽  
Vol 56 (49) ◽  
pp. 6700-6703
Author(s):  
Ning-Yu Huang ◽  
Hai He ◽  
Hao Li ◽  
Pei-Qin Liao ◽  
Xiao-Ming Chen
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Synergistic Effect ◽  
Metal Organic Framework ◽  
High Catalytic Activity ◽  
Binuclear Copper ◽  
Metal Organic ◽  
Cu Ions ◽  
Organic Framework

Here, we report a metal–organic framework featuring a binuclear copper unit, showing extraordinarily high catalytic activity (102.8 mmol g−1 h−1) for photodriven H2 generation, which is attributed to the synergistic effect between the two Cu ions.

High Catalytic Activity and Stability of Hexaaluminate Catalysts for N2O Decomposition

2013 ◽  
Vol 320 ◽  
pp. 665-669
Author(s):  
Chao Zhang ◽  
Yong Ji Song ◽  
Feng Hua Shi ◽  
Cui Qing Li ◽  
Hong Wang
Keyword(s):  
Catalytic Activity ◽  
Decomposition Reaction ◽  
Precipitation Method ◽  
High Catalytic Activity ◽  
Structure And Properties ◽  
Active Components ◽  
Co Precipitation ◽  
Hexaaluminate Catalysts

In this paper, hexaaluminate oxides LaMAl12O19-σwere prepared by using M=Cu ,Ce and Zn as active components to substitute Al in the hexaaluminate lattice by co-precipitation method. The structure and properties of LaMAl11O19-σcatalyst was characterized with XRD and BET. The results showed LaCuAl11O19-σexhibited significant high catalytic activity for the decomposition reaction of N2O. Under the simulated in situ condition, LaCuAl11O19-σalso indicated significant catalytic activity and stability, with N2O conversion of 90% at 635°C.

A facile construction of Au nanoparticles on a copolymer ligand brushes modified graphene oxide nanoplatform with excellent catalytic properties

RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 64937-64945 ◽  
Author(s):  
Yajiao Song ◽  
Jianhua Lü ◽  
Bingxin Liu ◽  
Changli Lü
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Au Nanoparticles ◽  
Catalytic Properties ◽  
High Catalytic Activity ◽  
Au Nps ◽  
Modified Graphene Oxide ◽  
Modified Graphene ◽  
Copolymer Brush

Au NPs were generated via in situ reduction on copolymer brush P(OEGMA-co-MQ) functionalized GO. MQ units in the brushes as capping agents could stabilize the Au NPs. The Au NPs–GO hybrid exhibited high catalytic activity for the reduction of 4-NP.

In situ assembly of ultrafine Mn3O4 nanoparticles into MIL-101 for selective aerobic oxidation

2017 ◽  
Vol 7 (18) ◽  
pp. 4136-4144 ◽  
Author(s):  
Yu Fu ◽  
Yanglong Guo ◽  
Yun Guo ◽  
Yunsong Wang ◽  
Li Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Oxides ◽  
Aerobic Oxidation ◽  
High Catalytic Activity ◽  
Selective Aerobic Oxidation ◽  
Mn3o4 Nanoparticles

Nanosize metal oxides generally possess high catalytic activity, but they tend to agglomerate into larger particles during a reaction.

Preparation of TiO2-supported twinned gold nanoparticles by CO treatment and their CO oxidation activity

2015 ◽  
Vol 51 (87) ◽  
pp. 15823-15826 ◽  
Author(s):  
Junya Ohyama ◽  
Taiki Koketsu ◽  
Yuta Yamamoto ◽  
Shigeo Arai ◽  
Atsushi Satsuma
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Co Oxidation ◽  
Au Nanoparticles ◽  
High Catalytic Activity ◽  
Oxidation Activity

Au/TiO2 prepared by CO treatment showed high catalytic activity for CO oxidation due to twinned structure of Au nanoparticles.

scholarly journals Preparation of an Active Ni2B/SBA-15 Catalyst to Improve NaBH4 Hydrolysis for Hydrogen Generation

2015 ◽  
Vol 18 (4) ◽  
pp. 231-235
Author(s):  
Fei Wu ◽  
Ting Li ◽  
Jindan Chen ◽  
Xiu Ru Yang ◽  
Cheng Ming Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Mesoporous Silica ◽  
Hydrogen Generation ◽  
Sintering Temperature ◽  
Weight Ratio ◽  
High Catalytic Activity

Ni2B nanoparticle distributed on ordered SBA-15 mesoporous silica was prepared in situ and its catalytic activity for NaBH4 hydrolysis was investigated in the presented paper. The problem of Ni2B aggregation is resolved and the catalytic activity of Ni2B is also improved due to the effect of SBA-15. The catalytic activity increases with Ni2B/SBA-15 weight ratio increased from 1:4 to 2:1 and the catalyst with Ni2B/SBA-15 weight ratio of 2:1 has high catalytic activity close to that of Ni2B. The sintered experiment shows that the catalytic activity comes from amorphous Ni2B, not crystalline Ni2B. High sintering temperature leads to the conversion from amorphous Ni2B to crystalline Ni2B and damages the nanostructure of amorphous Ni2B framework.

Hollow silica nanostructures with small size Au nanoparticles for catalytic applications

RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 89057-89060 ◽  
Author(s):  
Lin Yao ◽  
Jong-Min Lee
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Au Nanoparticles ◽  
Tetraethyl Orthosilicate ◽  
High Catalytic Activity ◽  
Hollow Silica ◽  
Silica Nanostructures ◽  
Catalytic Applications

Hollow silica nanostructures synthesized using the silica precursors (3-aminopropyl) trimethoxysilane and tetraethyl orthosilicate provide support to small sized gold nanoparticles with a high catalytic activity for the reduction of 4-nitrophenol.

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