Breaking structure sensitivity in CO2 hydrogenation by tuning metal–oxide interfaces in supported cobalt nanoparticles

Abstract

published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal.If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User

Restructuring of titanium oxide overlayers over nickel nanoparticles during catalysis

“…Thus, the current observations that the TOF of both methanation and C–C coupling increase with Ni NP size could not possibly be explained by classical structure sensitivity concept, which only accounts for Ni surface sites variation with NP size ( 39 ). Similar deviations from classical structure sensitivity were observed for Co-based catalysts in CO 2 hydrogenation, where partially reduced cobalt oxide covered with metallic clusters of a few Co atoms showed substantially higher intrinsic activity caused by interfacial effects ( 40 ).…”

CO2 Conversion Toward Real‐World Applications: Electrocatalysis versus CO2 Batteries

“…[221] Especially, the intrinsic activity of nanoparticles <10 nm is strongly influenced by differences in surface topologies and coordination numbers, where surface steps, corners, edges, and step-edge sites exhibit strong size dependence (Figure 5b). [222,223] Catalysts with tailored morphologies might expose more reactive sites and beneficial crystalline surfaces, and even induce surface strain, thereby tuning the electronic structure and improving catalytic performance. [224,225] For instance, the increased roughness and surface area of the dendrites have the potential to facilitate CO 2 adsorption and electron transport; [226] core-shell structures can modulate the concentration of local * CO intermediates via confinement effects, enhancing CC coupling; [108] and sharp needle-like structures with a high curvature can induce strong electric field effects in their vicinity, boosting * CO adsorption and lowering the energy barriers to CC coupling.…”

Defect engineering of two-dimensional materials for advanced energy conversion and storage

“…[309][310][311][312] Generally, the CO 2 RR mainly contains three steps: the chemical adsorption of CO 2 on active sites, the electron and/or proton transfer to break C-O bonds and/or form C-H bonds, and the desorption of reduction products. [313][314][315] Among these processes, the second step is a proton-coupled multi-step reaction potentially containing varied electron transfer pathways. Affected by the binding state of intermediates, various reduction products can be synthesized, such as CO, HCOOH, CH 4 , HCHO, CH 3 OH, C 2 H 4 , C 2 H 5 OH, and n-C 3 H 7 OH.…”