Specific Metal–Support Interactions between Nanoparticle Layers for Catalysts with Enhanced Methanol Oxidation Activity

ACS Catalysis ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 5391-5398 ◽  
Author(s):  
Sinmyung Yoon ◽  
Kyunghwan Oh ◽  
Fudong Liu ◽  
Ji Hui Seo ◽  
Gabor A. Somorjai ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Activity ◽  
Metal Support ◽  
Metal Support Interactions ◽  
Specific Metal

Morphology and size of Pt on Al2O3: The role of specific metal-support interactions between Pt and Al2O3

2020 ◽  
Vol 385 ◽  
pp. 204-212 ◽  
Author(s):  
Jaekyoung Lee ◽  
Eun Jeong Jang ◽  
Dong Gun Oh ◽  
János Szanyi ◽  
Ja Hun Kwak
Keyword(s):  
Metal Support ◽  
Metal Support Interactions ◽  
Specific Metal

MXene Surface Terminations Enable Strong Metal–Support Interactions for Efficient Methanol Oxidation on Palladium

2019 ◽  
Vol 12 (2) ◽  
pp. 2400-2406 ◽  
Author(s):  
Zhiquan Lang ◽  
Zechao Zhuang ◽  
Shikun Li ◽  
Lixue Xia ◽  
Yan Zhao ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Metal Support ◽  
Metal Support Interactions

High performance Pt/Ti3O5Mo0.2Si0.4 electrocatalyst with outstanding methanol oxidation activity

2019 ◽  
Vol 9 (15) ◽  
pp. 4118-4124 ◽  
Author(s):  
Reza Alipour Moghadam Esfahani ◽  
Reza B. Moghaddam ◽  
E. Bradley Easton
Keyword(s):  
Activation Energy ◽  
Charge Transfer ◽  
Methanol Oxidation ◽  
High Performance ◽  
Charge Transfer Resistance ◽  
Oxidation Activity ◽  
Transfer Resistance ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support

The strong metal–support interaction in Pt/Ti3O5Mo0.2Si0.4 enhances the methanol oxidation activity by decreasing the charge transfer resistance and activation energy.

Electronic Metal–Support Interactions at the Catalytic Interfaces of CuO Nanowires Decorated with Pt Nanoparticles for Methanol Oxidation and CO Sensing

2020 ◽  
Vol 3 (8) ◽  
pp. 8257-8267
Author(s):  
Zakaria Ziadi ◽  
Alexander J. Porkovich ◽  
Pawan Kumar ◽  
Abheek Datta ◽  
Eric Danielson ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Pt Nanoparticles ◽  
Cuo Nanowires ◽  
Metal Support ◽  
Metal Support Interactions ◽  
Catalytic Interfaces

Nanoscale Structural and Chemical Segregation in Pt50Ru50 Electrocatalysts

2001 ◽  
Vol 7 (S2) ◽  
pp. 1112-1113
Author(s):  
Rhonda M. Stroud ◽  
Jeffrey W. Long ◽  
Karen E. Swider-Lyons ◽  
Debra R. Rolison
Keyword(s):  
Methanol Oxidation ◽  
Structural Heterogeneity ◽  
Oxidation Activity ◽  
Bimetallic Alloy ◽  
Transmission Electron ◽  
Chemical Segregation ◽  
High Fraction ◽  
Argon Mixture ◽  
Microscopy Techniques ◽  
Electron Energy Loss

To address how the chemical and structural heterogeneity of Pt50Ru50 nanoparticles affects methanol oxidation activity, we have employed an arsenal of transmission electron microscopy techniques (conventional bright field-imaging, selected area diffraction, atomic-resolution lattice imaging, electron-energy loss spectroscopy, and energy-dispersive x-ray spectroscopy) to characterize 2.5-nm particles in differing oxidation and hydration states. Our studies demonstrate that electrocatalysts containing a high fraction of Ru-rich hydrous oxide, as apposed to the anhydrous PtRu bimetallic alloy, have as much as 250x higher methanol oxidation activityThe nominally 2.5-nm Pt50Ru50 particles were studied in as-received, reduced and reoxidized forms. The reducing treatment consisted of 2 h at 100 °C in flowing 10% PL/argon mixture. For re-oxidation, the reduced particles were heated for 20 h at 100 °C in an H2O-saturated oxygen atmosphere. The particles were suspended in methanol, and pipetted onto holey-carboncoated Cu grids for TEM studies.

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