One‐dimensional Nanomaterial Electrocatalysts for CO₂Fixation

Abstract

Electroreduction of CO2 into valuable molecules or fuels is a sustainable pathway for CO2 reduction as well as energy storage. However, the premature development stage of electrocatalysts with high activity, selectivity, and durability still remains a significant bottleneck that hinders this field. One‐dimensional (1D) nanomaterials, including nanorods, nanotubes, nanoribbons, nanowires, and nanofibers, are generally considered as high‐activity and stable electromaterials, due to their unique uniform structures, orientated electronic and mass transport, and rigid tolerance to stress variation. During the past several years, 1D nanomaterials and nanostructures have been extensively studied due to their potentials in serving as CO2 electroreduction catalysts. In this minireview, recent studies and advances in 1D nanomaterials for CO2 eletroreduction are summarized, from the viewpoints of both computational and experimental aspects. Based on the composition, the 1D nanomaterials are studied in four categories, including metals, transition‐metal oxides/nitrides, transition‐metal chalcogenides, and carbon‐based materials. Different parameters in tuning 1D materials are also summarized and discussed, such as the crystal facets, grain boundaries, heteroatoms doping, additives and the electrochemical tuning effects. Finally, the challenges and prospects in this direction will be discussed.

Advances and Challenges for the Electrochemical Reduction of CO2 to CO: From Fundamentals to Industrialization

“…1D materials possess the desirable features of rich edge sites, oriented electron/mass transport, and tolerance to stress variation, and have emerged as a class of potential catalysts for the CO 2 RR [53] . Sun and co‐workers indicated that Au nanowires had more edge sites (reactive edge sites) but fewer corner sites than NPs [54] .…”

Advances and Challenges for the Electrochemical Reduction of CO2 to CO: From Fundamentals to Industrialization

“…1D materials possess the desirable features of rich edge sites,oriented electron/mass transport, and tolerance to stress variation, and have emerged as ac lass of potential catalysts for the CO 2 RR. [53] Sun and co-workers indicated that Au nanowires had more edge sites (reactive edge sites) but fewer corner sites than NPs. [54] Thus,A un anowires could provide al ow onset potential of À0.2 Va nd ah igh FE of 94 %a t À0.…”

Robust nickel silicate catalysts with high Ni loading for CO2 methanation

“…With the development of science and technology and the continuous improvement of human living standards, people‘s demand for clean energy is increasing day by day. CO 2 utilization can not only reduce global climate‐warming gas emissions but also convert CO 2 into high value‐added chemical products (such as CH 4 , [1] CH 3 OH, [2] HCOOH, [3] dimethyl carbonate, [4] epoxides [5] etc. ), which have broad prospects and more attractive in the future [6–7] .…”