Design of 3d transition metal anchored B₅N₃ catalysts for electrochemical CO₂ reduction to methane

Abstract

Carbon dioxide (CO2) reduction to value-added fuels and chemicals by making full use of the electricity generated from clean energy is promising to address environmental pollution and the energy crisis....

Boosting the Ni–Zn interplay via O/N dual coordination for high‐efficiency CO2 electroreduction

“…2 Of all the feasible routes, electrochemical reduction of CO 2 into various types of fuels via renewable electricity is the most promising solution. [3][4][5][6] Currently, CO 2 can be converted into many types of value-added fuels or chemicals, such as carbon monoxide (CO), 7 methanol (CH 3 OH), 8 formic acid (HCOOH), 9 ethylene (C 2 H 4 ), 10,11 ethanol, 12 methane (CH 4 ), 13 and urea (CH 4 N 2 O), 14 depending on the surface properties of the electrocatalysts. 15 In all products, CO is available over a wide range of inexpensive electrocatalysts, and it is also economically viable as a feedstock for subsequent thermochemical reactions, 16 for instance, the very important Fischer-Tropsch synthesis.…”

Metal-free boron nanosheet as “buffer electron pool” for urea and ethanol synthesis via C–N and C–C coupling

“…9 Moreover, CO 2 RR can be carried out under mild conditions, and the required electrical energy can be obtained from renewable energy sources. Although state-of-the-art electrocatalysts electively produce various C1 products (carbon monoxide, 10,11 formic acid, 12,13 methane, 14,15 and methanol 16 ) and C2 products (ethylene 17 and ethanol 18 ) through different reaction pathways, it is challenging to further expand the range of products. The introduction of an N source as a reactant into CO 2 RR, in addition to CO 2 and H 2 O, to produce organo-nitrogen compounds (urea and ammoniate) is a highly efficient approach that can address both the concerns of environmental issues and energy crisis simultaneously.…”

Understanding trends in the mercury oxidation activity of single-atom catalysts

“…During recent years, single-atom catalysts (SACs) have been used for removing atmospheric pollutants due to their promising catalytic activity and selectivity. [26][27][28] Many studies showed that graphene-based SACs doped with transition metals (TMs) can chemically adsorb Hg 0 . Liu et al 29 analyzed the adsorption of Hg 0 on pure, vacancy-defect, 30 and Aldoped graphene surfaces, and found that single-Al doped graphene showed the best adsorption performance on Hg 0 .…”