scholarly journals Elucidating the Role of the Metal Catalyst and Oxide Support in the Ru/CeO2-Catalyzed CO2 Methanation Mechanism

2021 ◽  
Author(s):  
Sergio López-Rodríguez ◽  
Arantxa Davó-Quiñonero ◽  
Esther Bailón-García ◽  
Dolores Lozano-Castelló ◽  
Facundo C. Herrera ◽  
...  
Keyword(s):  
Metal Catalyst ◽  
Co2 Methanation ◽  
Oxide Support

scholarly journals Role of oxide support in Ni based catalysts for CO2 methanation

RSC Advances ◽  
2021 ◽  
Vol 11 (29) ◽  
pp. 17648-17657
Author(s):  
Ye Hwan Lee ◽  
Jeong Yoon Ahn ◽  
Dinh Duc Nguyen ◽  
Soon Woong Chang ◽  
Sung Su Kim ◽  
...  
Keyword(s):  
Co2 Methanation ◽  
Methanation Reaction ◽  
Support Interaction ◽  
Oxide Support ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Catalytic Performances

The effect of metal–support interaction and role of support on catalytic performances during Ni based CO2 methanation reaction were investigated.

Study of the role of chemical support and structured carrier on the CO2 methanation reaction

2019 ◽  
Vol 377 ◽  
pp. 120461 ◽  
Author(s):  
Antonio Ricca ◽  
Livia Truda ◽  
Vincenzo Palma
Keyword(s):  
Co2 Methanation ◽  
Methanation Reaction

scholarly journals The Role of Surface Hydroxylation, Lattice Vacancies and Bond Covalency in the Electrochemical Oxidation of Water (OER) on Ni-Depleted Iridium Oxide Catalysts

2020 ◽  
Vol 234 (5) ◽  
pp. 787-812 ◽  
Author(s):  
Hong Nhan Nong ◽  
Hoang Phi Tran ◽  
Camillo Spöri ◽  
Malte Klingenhof ◽  
Lorenz Frevel ◽  
...  
Keyword(s):  
Metal Oxide ◽  
High Surface ◽  
High Surface Area ◽  
Oxide Shell ◽  
Mixed Metal Oxide ◽  
Support Materials ◽  
Oxide Support ◽  
Rich Alloy ◽  
Surface Hydroxylation

AbstractThe usage of iridium as an oxygen-evolution-reaction (OER) electrocatalyst requires very high atom efficiencies paired with high activity and stability. Our efforts during the past 6 years in the Priority Program 1613 funded by the Deutsche Forschungsgemeinschaft (DFG) were focused to mitigate the molecular origin of kinetic overpotentials of Ir-based OER catalysts and to design new materials to achieve that Ir-based catalysts are more atom and energy efficient, as well as stable. Approaches involved are: (1) use of bimetallic mixed metal oxide materials where Ir is combined with cheaper transition metals as starting materials, (2) use of dealloying concepts of nanometer sized core-shell particle with a thin noble metal oxide shell combined with a hollow or cheap transition metal-rich alloy core, and (3) use of corrosion-resistant high-surface-area oxide support materials. In this mini review, we have highlighted selected advances in our understanding of Ir–Ni bimetallic oxide electrocatalysts for the OER in acidic environments.

scholarly journals Carbon Nanotubes: In Situ Monitoring the Role of Working Metal Catalyst Nanoparticles for Ultrahigh Purity Single-Walled Carbon Nanotubes (Adv. Funct. Mater. 40/2013)

2013 ◽  
Vol 23 (40) ◽  
pp. 4989-4989
Author(s):  
Tian-Chi Chen ◽  
Meng-Qiang Zhao ◽  
Qiang Zhang ◽  
Gui-Li Tian ◽  
Jia-Qi Huang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
In Situ Monitoring ◽  
Metal Catalyst ◽  
Catalyst Nanoparticles ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Promoted nickel-based catalysts on modified mesoporous silica support: The role of yttria and magnesia on CO2 methanation

2020 ◽  
Vol 306 ◽  
pp. 110455 ◽  
Author(s):  
Zahra Taherian ◽  
Alireza Khataee ◽  
Yasin Orooji
Keyword(s):  
Mesoporous Silica ◽  
Silica Support ◽  
Co2 Methanation

Vapor-Phase Catalyst Delivery Method for Growing SiC Nanowires

2013 ◽  
Vol 740-742 ◽  
pp. 209-212 ◽  
Author(s):  
Rooban Venkatesh K.G. Thirumalai ◽  
Bharat Krishnan ◽  
Albert Davydov ◽  
Joseph Neil Merrett ◽  
Yaroslav Koshka
Keyword(s):  
Vapor Phase ◽  
Gas Flow ◽  
Substrate Surface ◽  
Metal Catalyst ◽  
Catalyst Nanoparticles ◽  
Sic Nanowires ◽  
Cvd Growth ◽  
Hot Zone

A method was developed for growing SiC nanowires without depositing a metal catalyst on the targeted surfaces prior to the CVD growth. The proposed method utilizes in-situ vapor-phase catalyst delivery via sublimation of the catalyst from a metal source placed in the hot zone of the CVD reactor, followed by condensation of the catalyst-rich vapor on the bare substrate surface to form the catalyst nanoparticles. The vapor-phase catalyst delivery and the resulting nanowire density was found to be influenced by both the gas flow rate and the catalyst diffusion through the boundary layer above the catalyst source. The origin of undesirable bushes of nanowires and the role of the C/Si ratio were established.

scholarly journals CO2 Hydrogenation over Oxide-Supported PtCo Catalysts: The Role of the Oxide Support in Determining the Product Selectivity

2016 ◽  
Vol 128 (28) ◽  
pp. 8100-8105 ◽  
Author(s):  
Shyam Kattel ◽  
Weiting Yu ◽  
Xiaofang Yang ◽  
Binhang Yan ◽  
Yanqiang Huang ◽  
...  
Keyword(s):  
Co2 Hydrogenation ◽  
Product Selectivity ◽  
Oxide Support

scholarly journals Nanocrystalline Metal Oxides for Methane Sensors: Role of Noble Metals

2009 ◽  
Vol 2009 ◽  
pp. 1-20 ◽  
Author(s):  
S. Basu ◽  
P. K. Basu
Keyword(s):  
Metal Oxide ◽  
Metal Oxides ◽  
Noble Metal ◽  
Gas Sensors ◽  
Noble Metals ◽  
Industrial Applications ◽  
Metal Catalyst ◽  
Nanocrystalline Metal ◽  
Sensing Properties

Methane is an important gas for domestic and industrial applications and its source is mainly coalmines. Since methane is extremely inflammable in the coalmine atmosphere, it is essential to develop a reliable and relatively inexpensive chemical gas sensor to detect this inflammable gas below its explosion amount in air. The metal oxides have been proved to be potential materials for the development of commercial gas sensors. The functional properties of the metal oxide-based gas sensors can be improved not only by tailoring the crystal size of metal oxides but also by incorporating the noble metal catalyst on nanocrystalline metal oxide matrix. It was observed that the surface modification of nanocrystalline metal oxide thin films by noble metal sensitizers and the use of a noble metal catalytic contact as electrode reduce the operating temperatures appreciably and improve the sensing properties. This review article concentrates on the nanocrystalline metal oxide methane sensors and the role of noble metals on the sensing properties.

Active Role of Oxide Support during CO Oxidation atAu/MgO

2003 ◽  
Vol 90 (20) ◽  
Author(s):  
L. M. Molina ◽  
B. Hammer
Keyword(s):  
Co Oxidation ◽  
Active Role ◽  
Oxide Support

Metal catalyst in CVD growth of carbon nanotubes: role of chemical composition

2010 ◽  
Author(s):  
Oleg V. Yazyev ◽  
Alfredo Pasquarello ◽  
Marília Caldas ◽  
Nelson Studart
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Composition ◽  
Metal Catalyst ◽  
Cvd Growth
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