Pt nanoparticles immobilized in mesostructured silica: a non-leaching catalyst for 1-octene hydrosilylation

2017 ◽  
Vol 53 (20) ◽  
pp. 2962-2965 ◽  
Author(s):  
Thomas Galeandro-Diamant ◽  
Reine Sayah ◽  
Marie-Line Zanota ◽  
Sébastien Marrot ◽  
Laurent Veyre ◽  
...  
Keyword(s):  
Platinum Nanoparticles ◽  
Pt Nanoparticles ◽  
Mesostructured Silica ◽  
Highly Active

A catalyst containing platinum nanoparticles embedded into the walls of a mesostructured silica framework is highly active in alkene hydrosilylation and does not lead to Pt leaching.

Highly-active Platinum Nanoparticles-encapsulated Alumina-doped Resorcinol-Formaldehyde Carbon Composites for Asymmetric Hydrogenation

2021 ◽  
Author(s):  
Wei Yao ◽  
Na Zhang ◽  
Ren-Jie Xiong ◽  
Ranjith Kumar Kankala ◽  
Yongjun Liu ◽  
...  
Keyword(s):  
Platinum Nanoparticles ◽  
Asymmetric Hydrogenation ◽  
Pt Nanoparticles ◽  
Carbon Composites ◽  
Resorcinol Formaldehyde ◽  
Highly Active ◽  
One Step ◽  
New Type

Herein, a new type of highly-active platinum (Pt) nanoparticles encapsulated alumina-doped resorcinol-formaldehyde carbon composites (Al@RFC) is fabricated based on resorcinol-formaldehyde (RF) resin and aluminum acetylacetonate using a one-step carbonization approach...

scholarly journals Electron donation of non-oxide supports boosts O2 activation on nano-platinum catalysts

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tao Gan ◽  
Jingxiu Yang ◽  
David Morris ◽  
Xuefeng Chu ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Pt Nanoparticles ◽  
Catalytic Performance ◽  
Nitrogen Vacancy ◽  
Innovative Strategy ◽  
Oxide Supports ◽  
Heterogeneous Catalytic ◽  
Highly Active ◽  
Electron Sink ◽  
Nitrogen Vacancies

AbstractActivation of O2 is a critical step in heterogeneous catalytic oxidation. Here, the concept of increased electron donors induced by nitrogen vacancy is adopted to propose an efficient strategy to develop highly active and stable catalysts for molecular O2 activation. Carbon nitride with nitrogen vacancies is prepared to serve as a support as well as electron sink to construct a synergistic catalyst with Pt nanoparticles. Extensive characterizations combined with the first-principles calculations reveal that nitrogen vacancies with excess electrons could effectively stabilize metallic Pt nanoparticles by strong p-d coupling. The Pt atoms and the dangling carbon atoms surround the vacancy can synergistically donate electrons to the antibonding orbital of the adsorbed O2. This synergistic catalyst shows great enhancement of catalytic performance and durability in toluene oxidation. The introduction of electron-rich non-oxide substrate is an innovative strategy to develop active Pt-based oxidation catalysts, which could be conceivably extended to a variety of metal-based catalysts for catalytic oxidation.

Platinum nanoparticles partially-embedded into carbon sphere surfaces: a low metal-loading anode catalyst with superior performance for direct methanol fuel cells

2017 ◽  
Vol 5 (37) ◽  
pp. 19857-19865 ◽  
Author(s):  
Kui Li ◽  
Zhao Jin ◽  
Junjie Ge ◽  
Changpeng Liu ◽  
Wei Xing
Keyword(s):  
Fuel Cells ◽  
Platinum Nanoparticles ◽  
Direct Methanol Fuel Cells ◽  
Pt Nanoparticles ◽  
Superior Performance ◽  
Carbon Sphere ◽  
Carbon Spheres ◽  
Anode Catalyst ◽  
Direct Methanol ◽  
Methanol Fuel Cells

A robust architecture, consisting of Pt nanoparticles partially-embedded in carbon spheres with low loading, brings about outstanding electrocatalytic performance in DMFCs.

scholarly journals Highly active Ni-promoted mesostructured silica nanoparticles for CO2 methanation

2014 ◽  
Vol 147 ◽  
pp. 359-368 ◽  
Author(s):  
M.A.A. Aziz ◽  
A.A. Jalil ◽  
S. Triwahyono ◽  
R.R. Mukti ◽  
Y.H. Taufiq-Yap ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Co2 Methanation ◽  
Mesostructured Silica ◽  
Highly Active

scholarly journals Enhanced electrocatalytic performance of platinum nanoparticles on thiolated polyaniline-multiwalled carbon nanotubes for methanol oxidation

RSC Advances ◽  
2018 ◽  
Vol 8 (59) ◽  
pp. 33742-33747 ◽  
Author(s):  
Zhaohong Su ◽  
Chaorong Li ◽  
Yongbing Cheng ◽  
Qingwen Gui ◽  
Yuanfu Xiong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Methanol Oxidation ◽  
Platinum Nanoparticles ◽  
Electrocatalytic Oxidation ◽  
Pt Nanoparticles ◽  
Acidic Media ◽  
Multiwalled Carbon ◽  
Oxidation Of Methanol ◽  
Electrocatalytic Performance

Pt nanoparticles (PtNPs) well-dispersed on thiolated polyaniline (TPANI)-multiwalled carbon nanotubes (MWCNTs) were prepared for enhanced electrocatalytic oxidation of methanol in acidic media.

Graphene nanosheets loaded with Pt nanoparticles with enhanced electrochemical performance for sodium–oxygen batteries

2015 ◽  
Vol 3 (6) ◽  
pp. 2568-2571 ◽  
Author(s):  
Sanpei Zhang ◽  
Zhaoyin Wen ◽  
Kun Rui ◽  
Chen Shen ◽  
Yan Lu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Hydrothermal Method ◽  
Platinum Nanoparticles ◽  
Graphene Nanosheets ◽  
Pt Nanoparticles ◽  
Highly Dispersed ◽  
Enhanced Electrochemical Performance

Graphene nanosheets loaded with highly dispersed platinum nanoparticles (Pt@GNSs) are prepared by a simple and effective hydrothermal method.

Oriented Pt Nanoparticles Supported on Few-Layers Graphene as Highly Active Catalyst for Aqueous-Phase Reforming of Ethylene Glycol

2016 ◽  
Vol 8 (49) ◽  
pp. 33690-33696 ◽  
Author(s):  
Iván Esteve-Adell ◽  
Nadia Bakker ◽  
Ana Primo ◽  
Emiel Hensen ◽  
Hermenegildo García
Keyword(s):  
Ethylene Glycol ◽  
Aqueous Phase ◽  
Active Catalyst ◽  
Pt Nanoparticles ◽  
Aqueous Phase Reforming ◽  
Highly Active

Enhancement of catalytic activity for selective hydrogen production from formate with homogeneously poly(vinylpyrrolidone)/cationic poly(l-lysine) dispersed platinum nanoparticles

2020 ◽  
Vol 44 (34) ◽  
pp. 14334-14338
Author(s):  
Y. Minami ◽  
Y. Muroga ◽  
Y. Amao
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Platinum Nanoparticles ◽  
Pt Nanoparticles ◽  
Formate Decomposition

By using Pt nanoparticles dispersed by polyvinylpyrrolidone and cationic biopolymer, poly(l-lysine) (Pt–PVP/PLL), the highly selective H2 production based on formate decomposition was accomplished compared with that of Pt–PVP.

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