Efficient electro‐oxidation of formic acid, methanol, and ethanol is challenging owing to the multiple chemical reaction steps required to accomplish full oxidation to CO2. Herein, a ternary CoPtAu nanoparticle catalyst system is reported in which Co and Pt form an intermetallic L10‐structure and Au segregates on the surface to alloy with Pt. The L10‐structure stabilizes Co and significantly enhances the catalysis of the PtAu surface towards electro‐oxidation of ethanol, methanol, and formic acid, with mass activities of 1.55 A/mgPt, 1.49 A/mgPt, and 11.97 A/mgPt, respectively in 0.1 m HClO4. The L10‐CoPtAu catalyst is also stable, with negligible degradation in mass activities and no obvious Co/Pt/Au composition changes after 10 000 potential cycles. The in situ surface‐enhanced infrared absorption spectroscopy study indicates that the ternary catalyst activates the C−C bond more efficiently for ethanol oxidation.
Efficient electro-oxidation of formic acid, methanol, and ethanol is challenging owingt ot he multiple chemical reaction steps required to accomplish full oxidation to CO 2 . Herein, at ernary CoPtAun anoparticle catalyst system is reported in whichC oa nd Pt form an intermetallic L1 0structure and Au segregates on the surface to alloywith Pt. The L1 0 -structure stabilizes Co and significantly enhances the catalysis of the PtAus urface towards electro-oxidation of ethanol, methanol, and formic acid, with mass activities of 1.55 A/mg Pt ,1 .49 A/mg Pt ,a nd 11.97 A/mg Pt ,r espectively in 0.1m HClO 4 .T he L1 0 -CoPtAuc atalyst is also stable,w ith negligible degradation in mass activities and no obvious Co/Pt/ Au composition changes after 10 000 potential cycles.T he in situ surface-enhanced infrared absorption spectroscopy study indicates that the ternary catalyst activates the CÀCbond more efficiently for ethanol oxidation.Supportinginformation and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.
From the structure of DNA, [1] to computer science, [2] and space-station batteries, [3] several key scientific discoveries that enhance our lives today,w ere made by marginalized scientists.T hese three scientists,R osalind E. Franklin, Alan M. Turing and Olga D. Gonzµlez-Sanabria, did not conform to the cultural expectations of how scientists should look and behave.U nfortunately,m arginalized scientists are often viewed as just aresource rather than the lifeblood that constitutes science itself.W eneed to embrace scientists from all walks of life and corners of the globe;t his will also mean that nobody is excluded from tackling the life-threatening societal challenges that lie ahead. An awareness of science policy is essential to safeguarding our future.
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