EPR investigation of the nature of oxygen species present on the surface of gold impregnated cerium oxide

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作者：Antoine Aboukaï ; s^a ; ^b ; ^{aboukais@univ-littoral.fr" class="auth_mail" title="E-mail the corresponding author} ; Samer Aouad^a ; ^b ; ^c ; Mira Skaf^a ; ^b ; ^c ; Sara Hany^a ; ^b ; Madona Labaki^a ; ^b ; Renaud Cousin^a ; ^b ; Edmond Abi-Aad^a ; ^b
关键词：Electron paramagnetic resonance ; Surface properties ; Oxides ; Adsorption
刊名：Materials Chemistry & Physics
出版年：2016
出版时间：15 February 2016
年：2016
卷：170
期：Complete
页码：285-293
全文大小：1188 K

文摘

class="label">•: EPR identification of catalytically active oxygen species in class="boldFont">xAu/CeO₂.
class="label">•: The adsorption of air on class="boldFont">xAu/CeO₂ leads to the formation of two differentclass="mathmlsrc">ce" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0254058415305289&_mathId=si1.gif&_user=111111111&_pii=S0254058415305289&_rdoc=1&_issn=02540584&md5=4b0e090f2f8a91db56482292e77acc5a">class="imgLazyJSB inlineImage" height="14" width="21" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0254058415305289-si1.gif">cript>cal-align:bottom" width="21" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0254058415305289-si1.gif">cript>class="mathContainer hidden">class="mathCode"> $croll"> O_{2}^{-}$ species.
class="label">•: The amount of strongly attached class="mathmlsrc">ce" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0254058415305289&_mathId=si1.gif&_user=111111111&_pii=S0254058415305289&_rdoc=1&_issn=02540584&md5=4b0e090f2f8a91db56482292e77acc5a">class="imgLazyJSB inlineImage" height="14" width="21" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0254058415305289-si1.gif">cript>cal-align:bottom" width="21" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0254058415305289-si1.gif">cript>class="mathContainer hidden">class="mathCode"> $croll"> O_{2}^{-}$ and Au particles is responsible of catalytic activity.
class="label">•: The weakly adsorbed class="mathmlsrc">ce" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0254058415305289&_mathId=si1.gif&_user=111111111&_pii=S0254058415305289&_rdoc=1&_issn=02540584&md5=4b0e090f2f8a91db56482292e77acc5a">class="imgLazyJSB inlineImage" height="14" width="21" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0254058415305289-si1.gif">cript>cal-align:bottom" width="21" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0254058415305289-si1.gif">cript>class="mathContainer hidden">class="mathCode"> $croll"> O_{2}^{-}$ forms when Cl⁻ ions are present in the solid.
class="label">•: The weakly adsorbed class="mathmlsrc">ce" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0254058415305289&_mathId=si1.gif&_user=111111111&_pii=S0254058415305289&_rdoc=1&_issn=02540584&md5=4b0e090f2f8a91db56482292e77acc5a">class="imgLazyJSB inlineImage" height="14" width="21" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0254058415305289-si1.gif">cript>cal-align:bottom" width="21" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0254058415305289-si1.gif">cript>class="mathContainer hidden">class="mathCode"> $croll"> O_{2}^{-}$ is not catalytically active.

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