Recent progress of Bi-based electrocatalysts for electrocatalytic CO 2 reduction

Miao

et al. 2022

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safe limit 350 ppm), [7] which increased to 414 ppm in 2020, [3,8] with an annual growth rate of ≈1.57 ppm. This value will probably reach 570 ppm by 2100 without proper regulation. [9] Such high concentration of CO 2 in the atmosphere have triggered a series of ecological and environmental issues, including climate change, glacier melting, and sea levels rising, [7,8,10,11] which threaten the sustainable development of humans. Significant endeavors have been devoted to impede the increase of CO 2 concentration, which includes the exploitation of renewable green energy to alleviate the dependence on fossil fuels, [7,12,13] CO 2 sequestration, [14] and mimicking the natural photosynthesis process by converting CO 2 and H 2 O into valuable chemical products to close the carbon cycle. [15,16] Artificial photosynthesis in particular has attracted considerable research interest over the past few decades, since it offers the possibility of producing chemical products that traditionally rely on fossil fuels using waste CO 2 . [15,17] Various technologies have been implemented in artificial photosynthesis process, such as biocatalysis, [18,19] thermocatalysis, [20,21] photocatalysis, [22][23][24][25][26] electrocatalysis, [27][28][29] as well as photoelectrocatalysis. [30] Electrochemical CO 2 reduction (ECO 2 R) has attracted considerable attention due to its unique advantages, which include the relatively mild operating conditions; the tunable product selectivity and reaction path by regulating reaction Excessive anthropogenic CO 2 emission has caused a series of ecological and environmental issues, which threatens mankind's sustainable development. Mimicking the natural photosynthesis process (i.e., artificial photosynthesis) by electrochemically converting CO 2 into value-added products is a promising way to alleviate CO 2 emission and relieve the dependence on fossil fuels. Recently, Sn-based catalysts have attracted increasing research attentions due to the merits of low price, abundance, non-toxicity, and environmental benignancy. In this review, the paradigm of nanostructure engineering for efficient electrochemical CO 2 reduction (ECO 2 R) on Sn-based catalysts is systematically summarized. First, the nanostructure engineering of size, composition, atomic structure, morphology, defect, surficial modification, catalyst/ substrate interface, and single-atom structure, are systematically discussed. The influence of nanostructure engineering on the electronic structure and adsorption property of intermediates, as well as the performance of Sn-based catalysts for ECO 2 R are highlighted. Second, the potential chemical state changes and the role of surface hydroxides on Sn-based catalysts during ECO 2 R are introduced. Third, the challenges and opportunities of Sn-based catalysts for ECO 2 R are proposed. It is expected that this review inspires the further development of highly efficient Sn-based catalysts, meanwhile offer protocols for the investigation of Sn-based catalysts.

Section: Composition Engineeringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nanostructure Engineering of Sn‐Based Catalysts for Efficient Electrochemical CO₂ Reduction

Miao

et al. 2022

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ACS Appl. Mater. Interfaces

“…Ni-Sn-N 6 -Gra was screened out as the one with activity and selectivity for CO 2 RR to HCOOH in the first iteration loop, which was consistent with the experimental results of the high-efficiency electrocatalyst Ni-Sn-APC (the measured total current density reaches −24.20 mA/cm 2 and the faradic efficiency for HCOOH is 86.1% in the instance of −0.82 V RHE ) . A pure Bi metal catalyst is recognized as a high selectivity catalyst with CO 2 to HCOOH and its most exposed crystal face is (012). ,, Compared with activity and selectivity of the Bi (012) catalyst for CO 2 RR to HCOOH (Figure S11), 14 DMSCs with higher activity than the Bi (012) catalyst and 5 DMSCs with higher activity and selectivity than the Bi (012) catalyst are shown in Table . Furthermore, the stability of the five candidate DMSCs (Pt-Bi, Au-Bi, Hf-Pb, As-Sb, Ni-Bi-N 6 -Gra) was verified by ab initio molecular dynamics (AIMD).…”

Section: Resultsmentioning

confidence: 99%

“…29 A pure Bi metal catalyst is recognized as a high selectivity catalyst with CO 2 to HCOOH and its most exposed crystal face is (012). 14,61,62 Compared with activity and selectivity of the Bi (012) catalyst for CO 2 RR to HCOOH (Figure S11), 14 DMSCs with higher activity than the Bi (012) catalyst and 5 DMSCs with higher activity and selectivity than the Bi (012) catalyst are shown in Table 1. Furthermore, the stability of the five candidate DMSCs (Pt-Bi, Au-Bi, Hf-Pb, As- Sb, Ni-Bi-N 6 -Gra) was verified by ab initio molecular dynamics (AIMD).…”

Section: ■ Introductionmentioning

confidence: 99%

Active Learning Accelerating to Screen Dual-Metal-Site Catalysts for Electrochemical Carbon Dioxide Reduction Reaction

Ding

Shi

et al. 2023

Dual-metal-site catalysts (DMSCs) are increasingly important catalysts in the field of electrochemical carbon dioxide reduction reaction (CO2RR) in recent years. However, rapid screening of suitable metal combinations of DMSCs remains a huge challenge. Herein, we constructed an active learning (AL) framework to study CO2RR to HCOOH. This AL framework turned out a success in the accurate prediction of 282 DMSCs for CO2RR through interactive learning between users and machine learning (ML) models. Among the 42 DMSCs calculated in three iteration loops of AL, 29 DMSCs were obtained, where the screening success rate was as high as 70%. Furthermore, we found five experimentally unexplored DMSCs that exhibited better CO2RR activity and selectivity than pure Bi. Low prediction errors on other DMSCs show that the AL model possessed outstanding universality. The results prove the excellent potential of the AL method and provide guidance on the design of high-performance electrocatalysts for CO2RR.

“…[11][12][13][14][15][16][17][18] Among these materials, Bibased electrocatalysts are certainly the most valuable materials for the ERCO 2 to formate because of their inherent catalytic activity, cost-effectiveness, low toxicity and suppressed HER activity. [19][20][21][22][23][24][25] In this regard, a series of methods have been used to optimizing the morphology, structure, and composition of Bibased materials, such as Bi-MOF, BiOX (Cl, Br, and I), Bi 2 O 2 CO 3 , Bi 2 O 3, and so on, realizing the high catalytic performance for ERCO 2 toward formate. [26][27][28][29][30][31][32] Most of those reported studies prove that the pre-catalyst-derived metal Bi is the real catalytic material for the ERCO 2 process.…”

Section: Introductionmentioning

confidence: 99%

A topological chemical transition strategy of bismuth-based materials for high-efficiency electrocatalytic carbon dioxide conversion to formate

Tong

Feng

et al. 2023

J. Mater. Chem. A