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Electrochemical hydrogeneration (ECH) of biomass-derived platform molecules, which avoids the disadvantages in utilizing fossil fuel and gaseous hydrogen, is a promising route toward value-added chemicals production. Herein, we reported a CoO/Co heterostructure-supported Pt single atoms electrocatalyst (Pt1-CoO/Co) that exhibited an outstanding performance with a high conversion (>99%), a high Faradaic efficiency (87.6%), and robust stability (24 recyclability) at −20 mA/cm2for electrochemical phenol hydrogenation to high-valued KA oil (a mixture of cyclohexanol and cyclohexanone). Experimental results and the density functional theory calculations demonstrated that Pt1-CoO/Co presented strong adsorption of phenol and hydrogen on the catalyst surface simultaneously, which was conducive to the transfer of the adsorbed hydrogen generated on the single atom Pt sites to activated phenol, and then, ECH of phenol with high performance was achieved instead of the direct hydrogen evolution reaction. This work described that the multicomponent synergistic single atom catalysts could effectively accelerate the ECH of phenol, which could help the achievement of large-scale biomass upgrading.

Abstract: As a result of a new understanding of the relation between theory and practice, the “New Frankfurt School,” with Jrgen Habermas as its major representative, highly values the philosophical tradition of American pragmatism, in contrast to the first generation Critical Theorists represented by Max Horkheimer. In Habermas, the idea of “critique” is, both substantially and methodologically, closely connected with the idea of “praxis” in the following senses: communicative action, rational argumentation, public discussion and political culture. “Critique” is thus found to be immanent in “praxis”; or, a la Horkheimer, pragmatism turns out to be a “critical philosophical analysis” without “falling back upon objective reason and mythology.”