ORR viability of alumina-supported platinum nanocluster: exploring oxidation behaviour by DFT

2017 ◽  
Vol 19 (29) ◽  
pp. 19308-19315 ◽  
Author(s):  
Sandeep Nigam ◽  
Chiranjib Majumder
Keyword(s):  
Chemical Reactions ◽  
Oxidation Behaviour ◽  
Supported Platinum ◽  
Platinum Clusters ◽  
Platinum Nanoclusters

Despite abundant use of alumina-supported platinum nanoclusters as catalyst for various chemical reactions, their potential as an ORR catalyst is yet to be explored. Therefore, the present study aimed to assess the viability of alumina supported platinum clusters as ORR catalysts.

scholarly journals Structurally simple supported platinum clusters prepared from [Pt15(CO)30]2- on magnesium oxide

1992 ◽  
Vol 114 (16) ◽  
pp. 6460-6466 ◽  
Author(s):  
J. R. Chang ◽  
D. C. Koningsberger ◽  
B. C. Gates
Keyword(s):  
Magnesium Oxide ◽  
Supported Platinum ◽  
Platinum Clusters

Thermal Stability of Supported Platinum Clusters Studied by in Situ GISAXS

2004 ◽  
Vol 108 (47) ◽  
pp. 18105-18107 ◽  
Author(s):  
Randall E. Winans ◽  
Stefan Vajda ◽  
Byeongdu Lee ◽  
Stephen J. Riley ◽  
Sönke Seifert ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Supported Platinum ◽  
Platinum Clusters ◽  
Thermal Stability Of

The Electronic Interaction of Pt-Clusters with ITO and HOPG Surfaces upon Water Adsorption

2014 ◽  
Vol 228 (4-5) ◽  
Author(s):  
Joachim Klett ◽  
Stephan Krähling ◽  
Benjamin Elger ◽  
Rolf Schäfer ◽  
Bernhard Kaiser ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Catalytic Efficiency ◽  
Catalytic Performance ◽  
Substrate Material ◽  
Binding Energies ◽  
Electronic Interaction ◽  
Support Materials ◽  
Platinum Cluster ◽  
Supported Platinum ◽  
Platinum Clusters

AbstractIn order to investigate the catalytic properties of supported platinum clusters, their interaction with water was monitored using photoelectron spectroscopy. The clusters were exposed to up to five Langmuir of water at cryogenic temperatures. Additionally, the influence of the substrate was studied by employing HOPG and ITO as complementary support materials. In contrast to bulk platinum a distinct chemical shift is observable in the Pt4f binding energies for Pt clusters deposited on ITO. The same clusters on HOPG show no changes in binding energy. We propose that this trend is due to a change in the surface Fermi level in ITO, hence highlighting the strong interaction between the platinum cluster and the substrate material. Therefore it is reasonable to assume, that the catalytic efficiency of these clusters in general can not solely be described by the electronic structure of the cluster alone, but that also the electronic changes induced in the substrate may have a major impact on the catalytic performance as well.

One-Step Flame-Synthesis of Carbon-Embedded and -Supported Platinum Clusters

2008 ◽  
Vol 20 (6) ◽  
pp. 2117-2123 ◽  
Author(s):  
Frank O. Ernst ◽  
Robert Büchel ◽  
Reto Strobel ◽  
Sotiris E. Pratsinis
Keyword(s):  
Flame Synthesis ◽  
Supported Platinum ◽  
Platinum Clusters ◽  
One Step

Nitrogen Doping of Graphite for Enhancement of Durability of Supported Platinum Clusters

2011 ◽  
Vol 2 (6) ◽  
pp. 577-580 ◽  
Author(s):  
Takahiro Kondo ◽  
Tetsuya Suzuki ◽  
Junji Nakamura
Keyword(s):  
Nitrogen Doping ◽  
Supported Platinum ◽  
Platinum Clusters

Transformation of Atomically Dispersed Platinum in SAPO-37 into Platinum Clusters: Catalyst for Ethylene Hydrogenation

2021 ◽  
Author(s):  
Jorge E. Perez-Aguilar ◽  
James Hughes ◽  
Cong-Yan Chen ◽  
Bruce C Gates
Keyword(s):  
Infrared Spectra ◽  
Molecular Sieve ◽  
Platinum Catalysts ◽  
Ethylene Hydrogenation ◽  
Supported Platinum ◽  
Supported Platinum Catalysts ◽  
Platinum Clusters

Atomically dispersed supported platinum catalysts were synthesized by the reaction of Pt(acac)2 (acac = acetylacetonato) with the silicoaluminophosphate molecular sieve SAPO-37, with infrared spectra showing that the reaction involved SAPO...

Sign in / Sign up

Export Citation Format

Share Document