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EPR identification of catalytically active oxygen species in m>xm>Au/CeO<sub>2sub>.
The adsorption of air on m>xm>Au/CeO<sub>2sub> leads to the formation of two differentmmlsi1" class="mathmlsrc">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">mg 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">mg height="14" border="0" style="vertical-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">mathContainer hidden">mathCode"><math altimg="si1.gif" overflow="scroll"><mrow><msubsup><mi>Omi><mn>2mn><mo>−mo>msubsup>mrow>math> species.
The amount of strongly attached mmlsi1" class="mathmlsrc">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">mg 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">mg height="14" border="0" style="vertical-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">mathContainer hidden">mathCode"><math altimg="si1.gif" overflow="scroll"><mrow><msubsup><mi>Omi><mn>2mn><mo>−mo>msubsup>mrow>math> and Au particles is responsible of catalytic activity.
The weakly adsorbed mmlsi1" class="mathmlsrc">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">mg 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">mg height="14" border="0" style="vertical-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">mathContainer hidden">mathCode"><math altimg="si1.gif" overflow="scroll"><mrow><msubsup><mi>Omi><mn>2mn><mo>−mo>msubsup>mrow>math> forms when m>Clm><sup>−sup> ions are present in the solid.
The weakly adsorbed mmlsi1" class="mathmlsrc">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">mg 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">mg height="14" border="0" style="vertical-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">mathContainer hidden">mathCode"><math altimg="si1.gif" overflow="scroll"><mrow><msubsup><mi>Omi><mn>2mn><mo>−mo>msubsup>mrow>math> is not catalytically active.
