Photoemission study of methanol decomposition on Pt/Ni(111) surface alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10070078" target="_blank" >RIV/00216208:11320/10:10070078 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Photoemission study of methanol decomposition on Pt/Ni(111) surface alloy

Popis výsledku v původním jazyce

Platinum shows excellent catalytic activity in electrochemical oxidation of methanol. It is widely used in direct methanol fuel cells, but it is readily poisoned by CO-like intermediates generated in methanol activation process. To increase Pt CO tolerance, oxophilic metals such as Ru or Ni are incorporated into Pt. In our model study we present results of the adsorption and decomposition of methanol on a Pt-Ni ordered surface alloy prepared by Pt evaporation on Ni(111) surface, examined by conventionaland synchrotron radiation X-ray photoelectron spectroscopy. Methanol adsorbed at low temperature formed adsorbate multilayers, which were consecutively desorbed upon heating to 600 K. Reaction intermediates arising during desorption were measured. Reaction pathways are discussed and compared with those obtained on a clean Ni(111) single crystal.

Název v anglickém jazyce

Photoemission study of methanol decomposition on Pt/Ni(111) surface alloy

Popis výsledku anglicky

Platinum shows excellent catalytic activity in electrochemical oxidation of methanol. It is widely used in direct methanol fuel cells, but it is readily poisoned by CO-like intermediates generated in methanol activation process. To increase Pt CO tolerance, oxophilic metals such as Ru or Ni are incorporated into Pt. In our model study we present results of the adsorption and decomposition of methanol on a Pt-Ni ordered surface alloy prepared by Pt evaporation on Ni(111) surface, examined by conventionaland synchrotron radiation X-ray photoelectron spectroscopy. Methanol adsorbed at low temperature formed adsorbate multilayers, which were consecutively desorbed upon heating to 600 K. Reaction intermediates arising during desorption were measured. Reaction pathways are discussed and compared with those obtained on a clean Ni(111) single crystal.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GA202%2F07%2F0782" target="_blank" >GA202/07/0782: Reaktivita modelových katalyzátorů na bázi CeOx</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Surface and Interface Analysis

ISSN

0142-2421

e-ISSN

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Svazek periodika

42

Číslo periodika v rámci svazku

6-7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

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Kód UT WoS článku

000281149700024

EID výsledku v databázi Scopus

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