Atomically dispersed Ru in Pt3Sn intermetallic alloy as an efficient methanol oxidation electrocatalyst

Chemical Communications ◽

10.1039/d0cc08210d ◽

2021 ◽

Author(s):

Tianyi Yang ◽

Fengjuan Qin ◽

Shuping Zhang ◽

Hongpan Rong ◽

Wenxing Chen ◽

...

Keyword(s):

Surface Structure ◽

Methanol Oxidation ◽

Active Surface ◽

Intermetallic Alloy ◽

Intermetallic Structure

A Ru–Pt3Sn NC catalyst composed of atomically dispersed Ru atoms shows enhanced performance in methanol electroxidation, which is ascribed to the stable intermetallic structure and active surface structure, as well as the synergy among Pt, Sn and Ru.

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Recovery of Active Surface Sites of Shape-Controlled Platinum Nanoparticles Contaminated with Halide Ions and Its Effect on Surface-Structure

Journal of The Electrochemical Society ◽

10.1149/2.0171709jes ◽

2017 ◽

Vol 164 (9) ◽

pp. H551-H560 ◽

Cited By ~ 4

Author(s):

Ruttala Devivaraprasad ◽

Tathagata Kar ◽

Pradipkumar Leuaa ◽

Manoj Neergat

Keyword(s):

Surface Structure ◽

Platinum Nanoparticles ◽

Active Surface ◽

Halide Ions ◽

Surface Sites ◽

Shape Controlled ◽

Active Surface Sites

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Methanol Oxidaiton over the Nanoscale Supported Tungsten Oxide Catalysts

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.233-235.1460 ◽

2011 ◽

Vol 233-235 ◽

pp. 1460-1463

Author(s):

Yong Ming Dai ◽

Tsung Chi Pan ◽

Jih Mirn Jehng

Keyword(s):

Tungsten Oxide ◽

Methanol Oxidation ◽

Oxidation Reaction ◽

Structural Information ◽

Active Surface ◽

Acid Sites ◽

Oxide Catalysts ◽

Methanol Oxidation Reaction ◽

In Situ Raman Spectroscopy ◽

Redox Sites

Nanoscale supported tungsten oxide catalysts were synthesized by hydrothermal method using γ-Al2O3, Nb2O5, TiO2, ZrO2and CeO2as supports with a loading of 5~20% WO3on each supports, respectively. The physical properties and structural information were characterized by BET, XRD, ICP-AES and in situ Raman spectroscopy. Raman results confirm that the desired molecular arrangements of the active surface WOxspecies have been achieved without the presence of the crystalline WO3phase. The reactivity/selectivity of the supported WOxcatalysts are chemically probed with steady-state methanol oxidation reaction. The catalytic results of methanol oxidation reaction have revealed that the acid sites are present on the surface of WOx/Al2O3, WOx/Nb2O5, WOx/TiO2and WOx/ZrO2catalysts for the mainly production of dimethylether (DME), and redox sites have only present on the surface of the WOx/CeO2catalysts for the oxidation production of formaldehyde (HCHO). In addition, the WOx/CeO2catalysts possesses the high redox reactivity and the WOx/Al2O3catalyst possesses the highest acid reactivity.

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Surface Structure Effects in Platinum/Ruthenium Methanol Oxidation Electrocatalysis

Langmuir ◽

10.1021/la980184j ◽

1998 ◽

Vol 14 (8) ◽

pp. 1967-1970 ◽

Cited By ~ 208

Author(s):

Wojciech Chrzanowski ◽

Andrzej Wieckowski

Keyword(s):

Surface Structure ◽

Methanol Oxidation

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Enriched active surface structure in nanosized tungsten-cobalt oxides electrocatalysts for efficient oxygen redox reactions

Applied Surface Science ◽

10.1016/j.apsusc.2020.145831 ◽

2020 ◽

Vol 513 ◽

pp. 145831 ◽

Cited By ~ 1

Author(s):

Mabrook S. Amer ◽

Prabhakarn Arunachalam ◽

Mohamed A. Ghanem ◽

Abdullah M. Al-Mayouf ◽

Muhammad Ali Shar

Keyword(s):

Surface Structure ◽

Redox Reactions ◽

Active Surface ◽

Cobalt Oxides

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DEMS Study on Methanol Oxidation at Poly- and Monocrystalline Platinum Electrodes: The Effect of Anion, Temperature, Surface Structure, Ru Adatom, and Potential

The Journal of Physical Chemistry C ◽

10.1021/jp068328n ◽

2007 ◽

Vol 111 (19) ◽

pp. 7038-7048 ◽

Cited By ~ 61

Author(s):

Hongsen Wang ◽

Helmut Baltruschat

Keyword(s):

Surface Structure ◽

Methanol Oxidation ◽

Platinum Electrodes ◽

Temperature Surface

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Highly Active Surface Structure in Nanosized Spinel Cobalt-Based Oxides for Electrocatalytic Water Splitting

The Journal of Physical Chemistry C ◽

10.1021/acs.jpcc.8b00407 ◽

2018 ◽

Vol 122 (26) ◽

pp. 14447-14458 ◽

Cited By ~ 8

Author(s):

Jing Zhou ◽

Jiong Li ◽

Linjuan Zhang ◽

Sanzhao Song ◽

Yu Wang ◽

...

Keyword(s):

Surface Structure ◽

Water Splitting ◽

Active Surface ◽

Highly Active

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AuPt Nanoparticles Clusters on MWCNTs with Enhanced Electrocatalytic Activity for Methanol Oxidation

Catalysts ◽

10.3390/catal8120669 ◽

2018 ◽

Vol 8 (12) ◽

pp. 669 ◽

Cited By ~ 2

Author(s):

Changzheng Wang ◽

Fengnan Yang ◽

Li Gao ◽

Shoufang Xu ◽

Louzhen Fan ◽

...

Keyword(s):

Methanol Oxidation ◽

Electrocatalytic Activity ◽

Direct Methanol Fuel Cells ◽

Active Surface ◽

Oxidation Peak ◽

Multiwalled Carbon ◽

Peak Current ◽

Oxidation Peak Current ◽

Surface Areas ◽

Direct Methanol

AuPt nanoparticles clusters (NPCs) were electrodeposited on multiwalled carbon nanotubes (MWCNTs). The as-prepared AuPt NPCs@MWCNTs nanocomposites exhibited considerably enhanced electrocatalytic activity than Pt NPs@MWCNTs for methanol oxidation in acid medium. In comparison with Pt NPs@MWCNTs, a remarkable resistance to CO poisoning and a higher If/Ib value (the ratio of the forward scan oxidation peak current (If) and reverse scan oxidation peak current (Ib)) was achieved by AuPt NPCs@MWCNTs electrocatalyst, which is attributable to the unique NPCs nanostructure with enlarged electrochemical active surface areas. These results demonstrated the potential of AuPt NPCs@MWCNTs, which can be considered as an efficient electrocatalyst for methanol oxidation in direct methanol fuel cells.

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