2022
DOI: 10.1002/smll.202201391
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Main‐Group Metal Single‐Atomic Regulators in Dual‐Metal Catalysts for Enhanced Electrochemical CO2 Reduction

Abstract: Single‐atom sites can not only act as active centers, but also serve as promising catalyst regulators and/or promoters. However, in many complex reaction systems such as electrochemical CO2 reduction reaction (CO2RR), the introduction of single‐atom regulators may inevitably induce the competitive hydrogen evolution reaction (HER) and thus reduce the selectivity. Here, the authors demonstrate that introducing HER‐inert main‐group metal single atoms adjacent to transition‐metal single atoms can modify their ele… Show more

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Cited by 59 publications
(27 citation statements)
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“…[18][19][20][21][22][23][24][25][26][27][28] In particular, N-rich zeolitic imidazolate frameworks (ZIFs) have been utilized as ideal precursors for the fabrication of SACs with catalytically active MN x centers. [29][30][31][32][33][34][35][36][37] However, the microporous nature of most ZIFs results in derived SACs with low porosity, which would greatly hinder the mass transfer of reactants and the accessibility of active sites. Recently, we reported a three-dimensional (3D) ordered macroporous ZIF-8 single crystal (SOM-ZIF-8), 38 which can serve as an ideal template/precursor for the construction of SACs with a 3Dordered macroporous (3DOM) structure.…”
Section: Introductionmentioning
confidence: 99%
“…[18][19][20][21][22][23][24][25][26][27][28] In particular, N-rich zeolitic imidazolate frameworks (ZIFs) have been utilized as ideal precursors for the fabrication of SACs with catalytically active MN x centers. [29][30][31][32][33][34][35][36][37] However, the microporous nature of most ZIFs results in derived SACs with low porosity, which would greatly hinder the mass transfer of reactants and the accessibility of active sites. Recently, we reported a three-dimensional (3D) ordered macroporous ZIF-8 single crystal (SOM-ZIF-8), 38 which can serve as an ideal template/precursor for the construction of SACs with a 3Dordered macroporous (3DOM) structure.…”
Section: Introductionmentioning
confidence: 99%
“…The high-resolution spectra of N 1s could be deconvoluted into five peaks at 398.7 eV, 399.8 eV, 400.7 eV, 401.9 eV and 403.8 eV (Fig. 3C), which were attributed to pyridinic-N, Zr–N, pyrrolic-N, graphitic-N and oxidized-N, 84 respectively. Compared with NC (Fig.…”
Section: Resultsmentioning
confidence: 99%
“…3b). 79–86 As such, Jiang et al established TM 2 @C 2 N (M = Pt, Co, Ni, Cu) dual atom models and compared them with their counterpart TM@C 2 N for ORR. 87 Taking Co 2 @C 2 N as an example, Co 2 @C 2 N presented remarkably higher adsorption energy (2.39 eV) for the O 2 molecule with side-on binding configuration than Co@C 2 N (1.18 eV) with end-on binding configuration.…”
Section: Synergistic Effects In Multi-atom Cluster Catalystsmentioning
confidence: 99%