2022
DOI: 10.1007/s12274-022-4472-6
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Total conversion of centimeter-scale nickel foam into single atom electrocatalysts with highly selective CO2 electrocatalytic reduction in neutral electrolyte

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Cited by 26 publications
(19 citation statements)
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“…14,34 More details to the references can be found in Table 2. 5,8,12,16,[19][20][21]23,41,46,[54][55][56][57][58][59] Despite the lack of comprehensive data, general trends can be derived. Fig.…”
Section: Discussion and Comparison Of Strategiesmentioning
confidence: 99%
“…14,34 More details to the references can be found in Table 2. 5,8,12,16,[19][20][21]23,41,46,[54][55][56][57][58][59] Despite the lack of comprehensive data, general trends can be derived. Fig.…”
Section: Discussion and Comparison Of Strategiesmentioning
confidence: 99%
“…atoms highly dispersed and anchored in functional carbon substrates, for example, nitrogen-doped carbon (N−C) is the most frequently explored. 17,18 In these developed (Figure S7a), 28,29 +2 (Figure S8a), 19,30,31 and +2 (Figure S9a), 32 respectively. The FT-EXAFS (Figures S7b, S8b S3), implying the independence of CO 2 RR performances on the metal contents, the CO turnover frequency (TOF) was further calculated to evaluate the activity of the Ni−N 4 coordination structure as active sites for CO 2 -to-CO conversion (Figure S17).…”
Section: ■ Introductionmentioning
confidence: 91%
“…In recent years, featured with remarkable stability, superior activity, and maximum atom utilization efficiency, single-atom catalysts (SACs) have been deemed as a kind of promising catalysts with great practical value for electrochemical CO 2 RR, especially those with earth-abundant transition-metal (M: Fe, Co, Ni, and Cu, etc.) atoms highly dispersed and anchored in functional carbon substrates, for example, nitrogen-doped carbon (N–C) is the most frequently explored. , In these developed single-atom transition-metal-anchored N–C (M–N–C) catalysts, the coordination environments and the electronic structures of transition-metal atoms have been evidenced as the determinants to the electrochemical activity and selectivity of M–N–C SACs for CO 2 RR. For example, Wu et al successfully prepared Co–N x –C ( x = 2, 3, and 4) SACs with tuned coordination numbers via a simple pyrolysis method and illustrated that the low-coordinated Co–N 2 –C could gain a high Faradaic efficiency (FE) of 94% for CO production, outperforming the high-coordinated Co–N 3 –C (62.5%).…”
Section: Introductionmentioning
confidence: 99%
“…Three strategies are mainly used in "bottom-up" route: 1) coordination sites construction strategy: selecting supports with abundant coordination atoms like nitrogen, phosphorus, and sulfur atoms to tightly anchor the metal atoms 30 ; 2) spatial confinement strategy: porous materials containing ample coordination sites (N, P, S) in skeletons and uniform pores, e.g., zeolite, metalorganic frameworks (MOFs), and covalent-organic frameworks (COFs) are almost always served as hosts to evenly confine the metal atoms [31][32][33][34][35] ; 3) defects design strategy: the vacancies and unsaturated coordination sites generated from the defects of supports could be utilized to capture mononuclear metal complexes 36 . Reversely, metal nanoparticles or bulk metal are the starting precursors of "top-down" synthetic route 37,38 . Regulating the competition between metal-metal bonds and metal-supports bonds is essential for dispersing metal species atomically, which requires strong EMSI from abundant coordination sites or defects in supports to anchor metal atoms as well as high temperature to overcome the barrier of cracking metal-metal bonds 39,40 .…”
Section: Introductionmentioning
confidence: 99%