Size effects of Pd nanoparticles supported over CeZrPAl for methane oxidation

2020 ◽  
Vol 10 (23) ◽  
pp. 7875-7882
Author(s):  
Junchen Du ◽  
Depeng Zhao ◽  
Chengxiong Wang ◽  
Yunkun Zhao ◽  
Hong Li ◽  
...  
Keyword(s):  
Methane Oxidation ◽  
Size Effects ◽  
Active Sites ◽  
Pd Nanoparticles ◽  
Intrinsic Activity ◽  
Catalytic Methane Oxidation

Pd nanoparticles accompanied with distorted morphology result in considerable active sites and enhance the intrinsic activity for catalytic methane oxidation.

Electrodepositing Pd on NiFe layered double hydroxide for improved water electrolysis

2019 ◽  
Vol 3 (5) ◽  
pp. 842-850 ◽  
Author(s):  
Jinxue Guo ◽  
Jikang Sun ◽  
Yanfang Sun ◽  
Qingyun Liu ◽  
Xiao Zhang
Keyword(s):  
Charge Transfer ◽  
Water Splitting ◽  
Layered Double Hydroxide ◽  
Active Sites ◽  
Nickel Foam ◽  
Water Electrolysis ◽  
Pd Nanoparticles ◽  
Intrinsic Activity ◽  
Overall Water Splitting ◽  
Double Hydroxide

Ultrafine Pd nanoparticles with less than 0.12 at% are electrodeposited on nickel foam supported NiFe LDH to obtain improved intrinsic activity, more active sites, and enhanced charge transfer for improved bifunctionality towards overall water splitting.

In situ mercaptosilane-assisted confinement of Pd nanoparticles in Beta for high-efficient methane oxidation

2021 ◽  
Author(s):  
Liling Zhang ◽  
Junfei Chen ◽  
Haolin Yang ◽  
Xiaohan Wang ◽  
Zebao Rui
Keyword(s):  
Methane Oxidation ◽  
Pd Nanoparticles ◽  
High Efficient

scholarly journals Intrinsic activity modulation and structural design of NiFe alloy catalysts for an efficient oxygen evolution reaction

2021 ◽  
Author(s):  
Qiaoling Kang ◽  
Dawei Lai ◽  
Wenyin Tang ◽  
Qingyi Lu ◽  
Feng Gao
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Structural Design ◽  
Active Sites ◽  
Intrinsic Activity ◽  
Effective Strategies ◽  
Alloy Catalysts

Effective strategies to increase the intrinsic activity by electronic modulation and to increase the number of active sites by structural design are discussed for improving the oxygen evolution activities of NiFe alloys.

Finite size effects on supported Pd nanoparticles: Interaction of hydrogen with CO and C2H4

2005 ◽  
Vol 588 (1-3) ◽  
pp. L209-L219 ◽  
Author(s):  
Matthias Morkel ◽  
Günther Rupprechter ◽  
Hans-Joachim Freund
Keyword(s):  
Size Effects ◽  
Finite Size ◽  
Pd Nanoparticles ◽  
Finite Size Effects ◽  
Supported Pd

Identification of Active Sites in Oxidation Reaction from Real-Time Probing of Adsorbate Motion over Pd Nanoparticles

2018 ◽  
Vol 9 (18) ◽  
pp. 5202-5206 ◽  
Author(s):  
Ahmed Ghalgaoui ◽  
Ridha Horchani ◽  
Jijin Wang ◽  
Aimeric Ouvrard ◽  
Serge Carrez ◽  
...  
Keyword(s):  
Real Time ◽  
Oxidation Reaction ◽  
Active Sites ◽  
Pd Nanoparticles

Spectroscopic Definition of the Copper Active Sites in Mordenite: Selective Methane Oxidation

2015 ◽  
Vol 137 (19) ◽  
pp. 6383-6392 ◽  
Author(s):  
Pieter Vanelderen ◽  
Benjamin E. R. Snyder ◽  
Ming-Li Tsai ◽  
Ryan G. Hadt ◽  
Julie Vancauwenbergh ◽  
...  
Keyword(s):  
Methane Oxidation ◽  
Active Sites ◽  
Definition Of

Role of polyaniline morphology in Pd particles dispersion. Hydrogenation of alkynes in the presence of Pd-polyaniline catalysts

2013 ◽  
Vol 67 (8) ◽  
Author(s):  
Robert Kosydar ◽  
Monika Goral ◽  
Alicja Drelinkiewicz ◽  
Jaroslav Stejskal
Keyword(s):  
Palladium Catalysts ◽  
Active Sites ◽  
Pd Nanoparticles ◽  
Liquid Phase Hydrogenation ◽  
Close Proximity ◽  
Physicochemical Features ◽  
Molecular Masses ◽  
Palladium Particles ◽  
Pani Sample

AbstractTwo polyaniline (PANI) samples of various molecular masses were used for the preparation of palladium catalysts (with 2 mass % of Pd). The physicochemical features of starting polyanilines were found to substantially affect the size and extent of palladium nanoparticles aggregation. Strongly aggregated large palladium particles appeared in the PANI sample of more compact morphology (PANI-H), higher crystallinity and lower specific surface area. Pd nanoparticles of a definitively smaller size were formed in the more amorphous PANI sample of looser morphology (PANI-L) and the extent of particles aggregation was markedly lower. The catalytic properties of Pd/PANI samples were studied in a liquid phase hydrogenation of unsaturated triple bond (C≡C) in alkynes reactants, phenylacetylene, and cyclohexylacetylene. The 2 mass % Pd/PANI-L catalyst prepared using polymer of less compact texture exhibited much higher activity in both reactions. In the presence of the 2 mass % Pd/PANI-L catalyst, alkene products were formed with a high selectivity (approximately 90 %) attained at the almost complete conversion of alkynes. This highly selective hydrogenation of the C≡C to the C=C bond was related to the presence of an electroactive polymer, PANI, in close proximity with Pd active sites. Polyaniline could have a role in a steric effect as well as in a modification of adsorptive properties of Pd centres.

Elucidation and Evolution of the Active Component within Cu/Fe/ZSM-5 for Catalytic Methane Oxidation: From Synthesis to Catalysis

ACS Catalysis ◽  
2013 ◽  
Vol 3 (4) ◽  
pp. 689-699 ◽  
Author(s):  
Ceri Hammond ◽  
Nikolaos Dimitratos ◽  
Robert L. Jenkins ◽  
Jose Antonio Lopez-Sanchez ◽  
Simon A. Kondrat ◽  
...  
Keyword(s):  
Methane Oxidation ◽  
Active Component ◽  
Catalytic Methane Oxidation
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