Surface anchored atomic cobalt-oxide species coupled with oxygen vacancies boost the CO-production yield of Pd nanoparticles

Abstract

Catalytic transformation of CO2 to CO via reverse water gas shift (RWGS) reaction is a potential route for establishing the closed carbon loop. However, considering the competitive Sabatier reaction, the...

Effects of Pd and Co intimacy in Pd-modified Co/TiO2 catalysts for direct CO2 hydrogenation to fuels: the closer not the better

“…Regarding the activity of Pd for the RWGSR in bimetallic catalysts, it is interesting to note that PdCo bimetallic catalysts have been reported to be active and selective catalysts for the RWGSR. 81–83…”

“…9 As far as the RWGSR activity of Pd particles in configuration α is concerned, it should not decrease because they are in contact with cobalt. 82,83 In configuration β of Fig. 4b, the fact that H species should diffuse on the support before reaching the Co particles should lower the H*/CO* ratio.…”

“…Regarding the activity of Pd for the RWGSR in bimetallic catalysts, it is interesting to note that PdCo bimetallic catalysts have been reported to be active and selective catalysts for the RWGSR. [81][82][83] The 10Co/TiO 2 * and bimetallic catalysts were tested for CO 2 -FTS. In a typical experiment, 2 g of calcined catalyst were diluted with 8 g of inert SiC.…”

Facile surface restructure by one-step sub-millisecond laser exposure promotes the CO2 methanation performance of cobalt oxide supported Pd nanoparticles with copper-oxide cluster decoration

“…The catalytic performance of the experimental samples was evaluated using a previously established protocol. 19,26 More details are given in the ESI† (note-1).…”

“…22 For instance, our recent work highlighted the potential synergy between oxygen vacancy enriched atomic scale CoOx clusters and adjacent Pd domains, where CO 2 activation and H 2 dissociation were achieved simultaneously on CoOx and adjacent Pd domains, respectively. 19 Moreover, Zhang et al demonstrated the synergistic effect between the Pd nanoparticles (NP)s and the UiO-66 support for enhanced CO 2 methanation. 23 These studies highlight the crucial role of the surface atomic configuration in catalytic activity and the importance of exploring next-generation techniques for manipulating the surface atomic arrangement.…”