dc.contributor.author |
Bisht, Anuj |
|
dc.contributor.author |
Zhang, Peng |
|
dc.contributor.author |
Shivakumara, C. |
|
dc.contributor.author |
Sharma, Sudhanshu |
|
dc.date.accessioned |
2015-06-26T06:08:17Z |
|
dc.date.available |
2015-06-26T06:08:17Z |
|
dc.date.issued |
2015-05 |
|
dc.identifier.citation |
Bisht, Anuj; Zhang, Peng; Shivakumara, Chikkadasappa and Sharma, Sudhanshu, “Pt doped and Pt supported La1-xSrxCoO3: lower activity of Pt4+ towards the CO poisoning effect in formic acid and methanol electro-oxidation compared to Pt metal, The Journal of Physical Chemistry C, DOI: 10.1021/acs.jpcc.5b01241, May 2015. |
en_US |
dc.identifier.issn |
0022-3654 |
|
dc.identifier.uri |
http://dx.doi.org/10.1021/acs.jpcc.5b01241 |
|
dc.identifier.uri |
https://repository.iitgn.ac.in/handle/123456789/1773 |
|
dc.description.abstract |
Pt-supported La1–xSrxCoO3 and Pt-doped La1–xSrxCoO3 are synthesized using chemical reduction and solution combustion method, respectively. Chemical reduction is carried out using formaldehyde as a reducing agent giving Pt-supported La1–xSrxCoO3. Solution combustion method is used to prepare Pt-doped La1–xSrxCoO3. Detailed characterization using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Brunauer–Emmett–Teller (BET) surface area measurement, and transmission electron microscopy (TEM) is carried out to distinguish the Pt-supported and Pt-doped compounds in terms of their morphology and Pt oxidations states. TEM results indeed show the differences in their morphology. Further, electrochemical measurements are performed in neutral medium to differentiate their electrochemical activity. Cyclic voltammetry (CV) shows noticeable differences between Pt-supported La1–xSrxCoO3 and Pt-doped La1–xSrxCoO3. Importantly, our results show that Pt4+ in doped compound has poor to zero electrocatalytic activity toward formic acid and methanol electro-oxidation in comparison to Pt0 in supported compound. This study shows that metallic Pt in zero oxidation state is a superior catalyst to Pt in +4 oxidation state. |
en_US |
dc.description.statementofresponsibility |
by Anuj Bisht et al. |
|
dc.format.extent |
Vol. 119, No. 25, pp 14126–14134 |
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dc.language.iso |
en_US |
en_US |
dc.publisher |
American Chemical Society |
en_US |
dc.subject |
Formic acid |
en_US |
dc.subject |
La1–xSrxCoO3 |
en_US |
dc.subject |
Methanol electro-oxidation |
en_US |
dc.subject |
X-ray diffraction |
en_US |
dc.subject |
X-ray photoelectron spectroscopy |
en_US |
dc.title |
Pt doped and Pt supported La1-xSrxCoO3: lower activity of Pt4+ towards the CO poisoning effect in formic acid and methanol electro-oxidation compared to Pt metal |
en_US |
dc.type |
Article |
en_US |
dc.relation.journal |
The Journal of Physical Chemistry C |
|