Asymmetric Coordination Environment Engineering of Atomic Catalysts for CO2 Reduction

Abstract

Single-atom catalysts (SACs) have emerged as well-known catalysts in renewable energy storage and conversion systems. Several supports have been developed for stabilizing single-atom catalytic sites, e.g., organic-, metal-, and carbonaceous matrices. Noticeably, the metal species and their local atomic coordination environments have a strong influence on the electrocatalytic capabilities of metal atom active centers. In particular, asymmetric atom electrocatalysts exhibit unique properties and an unexpected carbon dioxide reduction reaction (CO2RR) performance different from those of traditional metal-N4 sites. This review summarizes the recent development of asymmetric atom sites for the CO2RR with emphasis on the coordination structure regulation strategies and their effects on CO2RR performance. Ultimately, several scientific possibilities are proffered with the aim of further expanding and deepening the advancement of asymmetric atom electrocatalysts for the CO2RR.

Design of material regulatory mechanism for electrocatalytic converting NO/NO3−to NH3progress

“…However, some progresses are still bottleneck issues, including relatively high cost, complex preparation, low FE NH3 , high overpotential, competitive HER, and unsatisfied catalytic stability. As expected, combining nanomaterials, DFT axis, and in situ/operando characterization would be one of the possible ways to understand the ENR mechanism, which can further provide the directions to design efficient nanomaterials capable of achieving large‐scale industrialization applications in terms of both environmental protection and high value‐added chemical production 210–214 …”

“…As expected, combining nanomaterials, DFT axis, and in situ/operando characterization would be one of the possible ways to understand the ENR mechanism, which can further provide the directions to design efficient nanomaterials capable of achieving large-scale industrialization applications in terms of both environmental protection and high value-added chemical production. [210][211][212][213][214] To promote the development of efficient catalysis material and reaction systems for ENR, here, we list the problem and put forward some perspectives on further pathways to give an insight into current challenges and future opportunities in the field.…”

Cathode materials for halide-based aqueous redox flow batteries: recent progress and future perspectives

“…90–99 Presently, the bromine and iodine-positive electrodes appear to be more promising, owing to their high solubilities and kinetic reversibility as common electrode materials (CFs or GFs). 100–106…”

“…[90][91][92][93][94][95][96][97][98][99] Presently, the bromine and iodine-positive electrodes appear to be more promising, owing to their high solubilities and kinetic reversibility as common electrode materials (CFs or GFs). [100][101][102][103][104][105][106] So far, the ZBRFB has already been applied to LSESA. Long energy storage times and the potential to deliver full power in seconds have led RFB to be considered one of the most promising electrochemical ESS.…”

Bimetallic phosphoselenide nanosheets as bifunctional catalysts for 5-hydroxymethylfurfural oxidation and hydrogen evolution

“…[52][53][54][55] Compared with the FePSe 3 / NS (0.79 eV), after the Mn doping, the ΔG H* value of the Mn-FePSe 3 /NS becomes 0.33 eV (Fig. 6d), indicative of optimized HER kinetics, [56][57][58][59][60][61] which is responsible for the observed HER performance (Fig. 4).…”