Recent progress on single-atom catalysts for CO2 electroreduction

Low‐dimensional material supported single‐atom catalysts for electrochemical CO2 reduction

“…The increased concentration of CO 2 will intensify anthropogenic climate change, resulting in the glaciers melting, sea levels rising and global precipitation increasing 4,5 . To this end, significant efforts have been devoted to developing technologies for decarbonization, carbon sequestration, and carbon recycling 6–8 . Among them, the electrochemical CO 2 reduction reaction (ECR) stands out as an attractive strategy because of its advantages as follows.…”

“…4,5 To this end, significant efforts have been devoted to developing technologies for decarbonization, carbon sequestration, and carbon recycling. [6][7][8] Among them, the electrochemical CO 2 reduction reaction (ECR) stands out as an attractive strategy because of its advantages as follows. First, the ECR is conducted under ambient temperature and pressure, suitable for industrial scaleup.…”

A Graphene‐Supported Copper Complex as Site‐Isolated Catalyst for Electrochemical CO2 Reduction

“…However, the stability of these single-site catalysts at operating conditions is often being questioned, leading to a long-time controversy that these molecular compounds are just precursors for metallic Cu nanoparticles. [38][39][40][41][42] Taking advantage of site-isolation effect [43][44][45][46][47][48] can be a possible way to avoid the concerns on catalyst decomposition. To achieve site isolation, Cu complexes can be dispersed on some kind of matrix, and the interaction between the complex and the matrix should be strong enough to prevent dissociation during electrolysis.…”

Single-atom catalysts for thermal- and electro-catalytic hydrogenation reactions

“…The ECR process is generally considered to be divided into three elementary steps, including the adsorptive activation of CO 2 molecules, the formation of intermediates by proton/electron transfer, and the production and desorption of products. 135,136 Recently, SACs have boomed in the eld of ECR due to their unique structures and remarkable electrocatalytic performance. Different types of SACs exhibited distinct reaction pathways and product distributions (such as CO, HCOO À , CH 4 , CH 3 OH, and even C 2+ products).…”

“…139 Zheng and co-workers reported that the neighboring Cu-N 2 single-atomic sites can favor the formation of C 2 H 4 , while the isolated Cu-N 2 site was prone to generate C 1 products. 140 As the recent progress in SACs for ECR had been well reported in many excellent reviews, 135,[141][142][143][144] it was not described in detail here.…”