scholarly journals Au–Pd Nanoparticles Dispersed on Composite Titania/Graphene Oxide-Supports as a Highly Active Oxidation Catalyst

ACS Catalysis ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 3575-3587 ◽  
Author(s):  
Jiacheng Wang ◽  
Simon A. Kondrat ◽  
Yingyu Wang ◽  
Gemma L. Brett ◽  
Cicely Giles ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Pd Nanoparticles ◽  
Oxidation Catalyst ◽  
Active Oxidation ◽  
Oxide Supports ◽  
Highly Active

Synthesis of a highly active oxidation catalyst with improved distribution of titanium coordination states

2016 ◽  
Vol 52 (56) ◽  
pp. 8679-8682 ◽  
Author(s):  
Lizhi Wu ◽  
Xiujuan Deng ◽  
Shufang Zhao ◽  
Hanmei Yin ◽  
Zuoxi Zhuo ◽  
...  
Keyword(s):  
High Performance ◽  
Oxidation Catalyst ◽  
Active Oxidation ◽  
Highly Active ◽  
Optimized Distribution

A facile strategy was carried out to construct a high-performance titanosilicate oxidation catalyst with optimized distribution of titanium coordination states.

scholarly journals Influence of graphene oxide supports on solution-phase catalysis of thiolate-protected palladium nanoparticles in water

2017 ◽  
Vol 41 (1) ◽  
pp. 177-183 ◽  
Author(s):  
Vivian Chen ◽  
Hanqing Pan ◽  
Roxanne Jacobs ◽  
Shahab Derakhshan ◽  
Young-Seok Shon
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Palladium Nanoparticles ◽  
Colloidal Stability ◽  
Pd Nanoparticles ◽  
Solution Phase ◽  
Oxide Supports ◽  
Surface Ligands

The colloidal stability and catalytic activity of Pd nanoparticles are affected by the presence of graphene oxide and surface ligands.

Ionic block copolymer doped reduced graphene oxide supports with ultra-fine Pd nanoparticles: strategic realization of ultra-accelerated nanocatalysis

2015 ◽  
Vol 3 (41) ◽  
pp. 20471-20476 ◽  
Author(s):  
Kie Yong Cho ◽  
Yong Sik Yeom ◽  
Heun Young Seo ◽  
Pradip Kumar ◽  
Albert S. Lee ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Block Copolymer ◽  
Reduced Graphene Oxide ◽  
Pd Nanoparticles ◽  
Oxide Supports ◽  
Reduced Graphene

We synthesized an ultra-fine Pd nanocatalyst supported by ionic block copolymer doped reduced graphene oxide (Pd-PIBrGO) for ultra-accelerated nanocatalysis.

scholarly journals Highly Dispersed Pd Species Supported on CeO2 Catalyst for Lean Methane Combustion: The Effect of the Occurrence State of Surface Pd Species on the Catalytic Activity

Catalysts ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 772
Author(s):  
Yanxiong Liu ◽  
Changhua Hu ◽  
Longchun Bian
Keyword(s):  
Catalytic Activity ◽  
Oxygen Vacancies ◽  
Methane Combustion ◽  
Pd Nanoparticles ◽  
High Concentration ◽  
Ch4 Combustion ◽  
Highly Active ◽  
Δ Phase ◽  
Occurrence State ◽  
Comprehensive Characterization

The correlation between the occurrence state of surface Pd species of Pd/CeO2 for lean CH4 combustion is investigated. Herein, by using a reduction-deposition method, we have synthesized a highly active 0.5% PdO/CeO2-RE catalyst, in which the Pd nanoparticles are evenly dispersed on the CeO2 nanorods CeO2-R. Based on comprehensive characterization, we have revealed that the uniformly dispersed Pd nanoparticles with a particle size distribution of 2.3 ± 0.6 nm are responsible for the generation of PdO and PdxCe1−xO2−δ phase with –Pd2+–O2−–Ce4+– linkage, which can easily provide oxygen vacancies and facilitate the transfer of reactive oxygen species between the CeO2-R and Pd species. As a consequence, the remarkable catalytic activity of 0.5% Pd/CeO2-RE is related to the high concentration of PdO species on the surface of the catalyst and the synergistic interaction between the Pd species and the CeO2 nanorod.

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.

Novel determination of hydrogen peroxide by electrochemically reduced graphene oxide grafted with aminothiophenol–Pd nanoparticles

2013 ◽  
Vol 178 ◽  
pp. 450-457 ◽  
Author(s):  
Jung-Min You ◽  
Daekun Kim ◽  
Seul Ki Kim ◽  
Min-Su Kim ◽  
Hyoung Soon Han ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Pd Nanoparticles ◽  
Reduced Graphene ◽  
Electrochemically Reduced Graphene Oxide
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