Improvement in the catalytic properties of ZSM-5 zeolite nanoparticles via mechanochemical and chemical modifications

2016 ◽  
Vol 6 (8) ◽  
pp. 2598-2604 ◽  
Author(s):  
Satoshi Inagaki ◽  
Shoma Shinoda ◽  
Shunsuke Hayashi ◽  
Toru Wakihara ◽  
Hiroshi Yamazaki ◽  
...  
Keyword(s):  
Acid Treatment ◽  
Catalytic Properties ◽  
Chemical Modifications ◽  
Bead Milling ◽  
Highly Efficient ◽  
Nanoparticle Catalyst

A combination of bead-milling, subsequent recrystallization and acid treatment of micron-sized ZSM-5 zeolite can provide a highly efficient ZSM-5 nanoparticle catalyst.

Highly efficient hydrolysis of ammonia borane by anion (−OH, F−, Cl−)-tuned interactions between reactant molecules and CoP nanoparticles

2017 ◽  
Vol 53 (4) ◽  
pp. 705-708 ◽  
Author(s):  
Zi-Cheng Fu ◽  
Yong Xu ◽  
Sharon Lai-Fung Chan ◽  
Wei-Wei Wang ◽  
Fang Li ◽  
...  
Keyword(s):  
High Performance ◽  
Ammonia Borane ◽  
Ambient Conditions ◽  
Highly Efficient ◽  
Performance System ◽  
Hydrolysis Of ◽  
Nanoparticle Catalyst

An anion-assisted hydrolytic H2-releasing ultra-high performance system involving ammonia borane and a CoP nanoparticle catalyst has been established under ambient conditions.

scholarly journals Thermoregulated phase-separable rhodium nanoparticle catalyst for selective hydrogenation of α,β-unsaturated aldehydes and ketones

RSC Advances ◽  
2017 ◽  
Vol 7 (79) ◽  
pp. 50343-50346 ◽  
Author(s):  
Xiuru Xue ◽  
Mingming Niu ◽  
Yicheng Xu ◽  
Yanhua Wang
Keyword(s):  
Selective Hydrogenation ◽  
Unsaturated Aldehydes ◽  
Highly Efficient ◽  
Aldehydes And Ketones ◽  
Rhodium Nanoparticle ◽  
Nanoparticle Catalyst

Highly efficient and recyclable thermoregulated phase-separable Rhnano catalysts applied for the selective hydrogenation of α,β-unsaturated aldehydes and ketones are presented.

Highly Efficient Etherification of Silanes by Using a Gold Nanoparticle Catalyst: Remarkable Effect of O2

2013 ◽  
Vol 19 (43) ◽  
pp. 14398-14402 ◽  
Author(s):  
Takato Mitsudome ◽  
Yuya Yamamoto ◽  
Akifumi Noujima ◽  
Tomoo Mizugaki ◽  
Koichiro Jitsukawa ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Remarkable Effect ◽  
Highly Efficient ◽  
Nanoparticle Catalyst

l-Methionine–Pd complex supported on hercynite as a highly efficient and reusable nanocatalyst for C–C cross-coupling reactions

2020 ◽  
Vol 44 (7) ◽  
pp. 2919-2929 ◽  
Author(s):  
Masoud Mohammadi ◽  
Arash Ghorbani-Choghamarani
Keyword(s):  
Catalytic Properties ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Highly Efficient ◽  
Cross Coupling Reactions

An l-methionine–Pd complex was covalently immobilized on the surface of hercynite (FeAl2O4) MNPs, and its catalytic properties were studied in C–C coupling reactions.

Highly Efficient Adsorption of Anionic Dye on Acid-Treated Halloysite Nanotubes

2020 ◽  
Vol 20 (8) ◽  
pp. 5024-5027 ◽  
Author(s):  
Hyungwook Lee ◽  
Keonku Lee ◽  
Jongik Park ◽  
Jewon Lee ◽  
Jaegeun Noh
Keyword(s):  
Acid Treatment ◽  
Treatment Time ◽  
Total Surface Area ◽  
Halloysite Nanotubes ◽  
Structural Defects ◽  
Eosin Y ◽  
Anionic Dyes ◽  
Anionic Dye ◽  
Specific Pore Volume ◽  
Highly Efficient

The adsorption capability of eosin Y as a model anionic dye on natural halloysite nanotubes (HNTs) and sulfuric acid-treated HNTs as a function of acid treatment time (1 h, 3 h, and 5 h) was examined. Scanning electron microscopy revealed that natural HNTs had a very uniform surface, whereas acid-treated HNTs had a rough surface with structural defects, which increased with acid treatment time. The total specific pore volume and total surface area of the acid-treated HNTs increased due to formation of nanopores in the HNTs via dissolution of the inner AlO6 octahedral layer. With acid treatment, the surface ξ—potentials were positively shifted from −42.9 mV (for the natural HNTs) to −1.9, −3.0, and +1.2 mV after 1, 3, and 5 h, respectively. The adsorption amount (qe) of eosin Y on natural HNTs and the three acid-treated HNTs was 2.3, 125.5, 118.9, and 118.9 mg g−1, respectively, implying that the adsorption capacity of acid-treated HNTs is ~50 times higher than that of natural HNTs. In this study, we clearly demonstrated that acid-treated HNTs can be used as highly efficient nanomaterials for removal of dyes from wastewater containing anionic dyes.

“Ship in a bottle” Porph@MOMs as highly efficient catalysts for selective controllable oxidation and insights into different mechanisms in heterogeneous and homogeneous environments

2018 ◽  
Vol 42 (15) ◽  
pp. 12872-12881 ◽  
Author(s):  
M. Saghian ◽  
S. Dehghanpour ◽  
M. Sharbatdaran
Keyword(s):  
Catalytic Properties ◽  
Oxidation Catalysts ◽  
Biomimetic Oxidation ◽  
Highly Efficient ◽  
Control Capability ◽  
Selectivity Control

3D “ship in a bottle” Porph@MOMs with selectivity control capability and interesting catalytic properties were used as biomimetic oxidation catalysts for different reactions.

Well-dispersed ultrasmall VC nanoparticles embedded in N-doped carbon nanotubes as highly efficient electrocatalysts for hydrogen evolution reaction

Nanoscale ◽  
2018 ◽  
Vol 10 (29) ◽  
pp. 14272-14279 ◽  
Author(s):  
Liyun Cao ◽  
Ning Zhang ◽  
Liangliang Feng ◽  
Jianfeng Huang ◽  
Yongqiang Feng ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Rational Design ◽  
Catalytic Properties ◽  
Design And Synthesis ◽  
Highly Efficient ◽  
Earth Abundant

The rational design and synthesis of ultrasmall metal-based electrocatalysts using earth-abundant elements are considered as a promising route to improve catalytic properties.

scholarly journals Preparation of palladium nanoparticle catalyst in ionic liquid and its catalytic properties for Heck-Mizoroki reaction

2014 ◽  
Vol 35 (12) ◽  
pp. 1921-1926 ◽  
Author(s):  
Furong Wang ◽  
Sisi Tang ◽  
Yinghao Yu ◽  
Lefu Wang ◽  
Biaolin Yin ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Catalytic Properties ◽  
Palladium Nanoparticle ◽  
Nanoparticle Catalyst
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