000095927 001__ 95927
000095927 005__ 20201026143852.0
000095927 0247_ $$2doi$$a10.1039/c9ra06915a
000095927 0248_ $$2sideral$$a116314
000095927 037__ $$aART-2019-116314
000095927 041__ $$aeng
000095927 100__ $$aAhmadpour, A.
000095927 245__ $$aA one-pot route for the synthesis of Au@Pd/PMo12/rGO as a dual functional electrocatalyst for ethanol electro-oxidation and hydrogen evolution reaction
000095927 260__ $$c2019
000095927 5060_ $$aAccess copy available to the general public$$fUnrestricted
000095927 5203_ $$aAn in situ one-pot synthetic route for the synthesis of a Au@Pd/PMo12/reduced graphene oxide (rGO) nanocomposite is presented, where the Keggin-type polyoxometalate phosphomolybdic acid (PMo12) is used as both reducing and stabilizing agent. High-angle annular dark-field scanning transmission electron microscopy (HAADT-STEM), transmission electron microscopy (TEM), and X-ray diffraction analysis were applied to fully characterize the core-shell structure of Au@Pd/PMo12 on the rGO matrix. Electrochemical studies showed how this nanocomposite acts as a dual electrocatalyst for the ethanol electro-oxidation reaction (EOR) and the hydrogen evolution reaction (HER). For the EOR, the Au@Pd/PMo12/rGO electrocatalyst offers a low onset potential of -0.77 V vs. Ag/AgCl and a high peak current density of 41 mA cm-2 in alkaline medium. This feature is discussed via detailed cyclic voltammetry (CV) studies illustrating how the superior performance of the synthetic nanocomposite could be attributed to the synergistic effect of Au, Pd, PMo12 and rGO. Moreover, it has been confirmed that the proposed electrocatalyst exhibits low overpotentials for 10 mA cm-2 current density (¿10) in different pH media. The values of ¿10 were -109, 300 and 250 mV vs. RHE in acidic, basic and neutral media, respectively. Also, the ability of the electrocatalyst to provide high HER current density and its remarkable stability have been confirmed.
000095927 536__ $$9info:eu-repo/grantAgreement/ES/CSIC/ComFuturo$$9info:eu-repo/grantAgreement/ES/DGA-FSE/CIBER-BBN
000095927 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000095927 590__ $$a3.119$$b2019
000095927 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b73 / 177 = 0.412$$c2019$$dQ2$$eT2
000095927 592__ $$a0.736$$b2019
000095927 593__ $$aChemistry (miscellaneous)$$c2019$$dQ1
000095927 593__ $$aChemical Engineering (miscellaneous)$$c2019$$dQ1
000095927 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000095927 700__ $$aKhadempir, S.
000095927 700__ $$aAshraf, N.
000095927 700__ $$0(orcid)0000-0003-4848-414X$$aMitchell, S. G.$$uUniversidad de Zaragoza
000095927 700__ $$aAhangari, M. H.
000095927 7102_ $$12013$$2765$$aUniversidad de Zaragoza$$bDpto. Química Orgánica$$cÁrea Química Orgánica
000095927 773__ $$g9 (2019), 37537-37545$$pRSC ADVANCES$$tRSC Advances$$x2046-2069
000095927 8564_ $$s424511$$uhttps://zaguan.unizar.es/record/95927/files/texto_completo.pdf$$yVersión publicada
000095927 8564_ $$s44181$$uhttps://zaguan.unizar.es/record/95927/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000095927 909CO $$ooai:zaguan.unizar.es:95927$$particulos$$pdriver
000095927 951__ $$a2020-10-26-13:26:14
000095927 980__ $$aARTICLE