Constructing FeN4/graphitic nitrogen atomic interface for high-efficiency electrochemical CO2 reduction over a broad potential window

Liu, Chuhao; Wu, Yue; Sun, Kaian; Fang, Jinjie; Huang, Aijian; Pan, Yuan; Cheong, Weng‐Chon; Zhuang, Zewen; Zhuang, Zhongbin; Yuan, Qiuhua; Xin, Huolin L.; Zhang, Chao; Zhang, Jiangwei; Xiao, Hai; Chen, Chen; Li, Yadong

doi:10.1016/j.chempr.2021.02.001

Cited by 179 publications

(121 citation statements)

References 51 publications

Supporting

Mentioning

113

Contrasting

Order By: Relevance

“…The Fourier transformed EXAFS (FT-EXAFS) spectra confirm that the peak of Fe-N in H 2 -FeN 4 /C is at around 1.80 Å, comparable to that in FePc (Figure 9). [153] The XANES maxima of Fe 1 /N, S-PC, and Fe 1 /N-PC were located in between those of Fe 2 O 3 and Fe foil, indicating the positive charge state of Fe atoms. The Fe K-edge WT EXAFS oscillations further confirm that the Fe site in the PC is in the form of atomic dispersion, and the Fe-N coordination could be obtained from the WT contour plots of Fe 1 /N,S-PC.…”

Section: X-ray Absorption Spectroscopymentioning

confidence: 91%

“…Meanwhile, single-atom resolution of the electron energy-loss spectroscopy can also confirm the presence of FeN 4 species embedded within carbon basal planes. [155] [153] Copyright 2021, Elsevier. www.advmat.de www.advancedsciencenews.com…”

Section: X-ray Photoelectron Spectroscopymentioning

confidence: 99%

“…The fabricated Fe-N-C with FeN 4 /graphitic N could effectively suppress the parasitic HER and promote the conversion of CO 2 to CO with a much enhanced FE above 97% at −0.6 V (Figure 19). [153] Several kinds of isolated Co-based catalysts with differently coordinated N numbers have been fabricated to explore their catalytic performance for CO2RR. With the decrease in coordination number of Co-N x from 4 to 2, the Co-N-C catalysts exhibited remarkable catalytic selectivity and activity toward CO2RR.…”

Section: Co 2 Reduction Reactionmentioning

confidence: 99%

Section: Conclusion and Challengesmentioning

confidence: 99%

mentioning

confidence: 99%

See 4 more Smart Citations

Metal–Nitrogen–Carbon Catalysts of Specifically Coordinated Configurations toward Typical Electrochemical Redox Reactions

et al. 2021

View full text Add to dashboard Cite

Metal-nitrogen-carbon (M-N-C) material with specifically coordinated configurations is a promising alternative to costly Pt-based catalysts. In the past few years, great progress is made in the studies of M-N-C materials, including the structure modulation and local coordination environment identification via advanced synthetic strategies and characterization techniques, which boost the electrocatalytic performances and deepen the understanding of the underlying fundamentals. In this review, the most recent advances of M-N-C catalysts with specifically coordinated configurations of M-N x (x = 1-6) are summarized as comprehensively as possible, with an emphasis on the synthetic strategy, characterization techniques, and applications in typical electrocatalytic reactions of the oxygen reduction reaction, oxygen evolution reaction, hydrogen evolution reaction, CO 2 reduction reaction, etc., along with mechanistic exploration by experiments and theoretical calculations. Furthermore, the challenges and potential perspectives for the future development of M-N-C catalysts are discussed.

show abstract

Section: X-ray Absorption Spectroscopymentioning

confidence: 91%

Section: X-ray Photoelectron Spectroscopymentioning

confidence: 99%

Section: Co 2 Reduction Reactionmentioning

confidence: 99%

Section: Conclusion and Challengesmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Metal–Nitrogen–Carbon Catalysts of Specifically Coordinated Configurations toward Typical Electrochemical Redox Reactions

et al. 2021

View full text Add to dashboard Cite

show abstract

Hierarchical Cross‐Linked Carbon Aerogels with Transition Metal‐Nitrogen Sites for Highly Efficient Industrial‐Level CO₂ Electroreduction

Zhang

Wang

Zheng

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

Developing highly efficient carbon aerogels (CA) electrocatalysts based on transition metal-nitrogen sites is critical for the CO 2 electroreduction reaction (CO 2 RR). However, simultaneously achieving a high current density and high Faradaic efficiency (FE) still remains a big challenge. Herein, a series of unique 3D hierarchical cross-linked nanostructured CA with metal-nitrogen sites (MN, M = Ni, Fe, Co, Mn, Cu) is developed for efficient CO 2 RR. An optimal CA/N-Ni aerogel, featured with unique hierarchical porous structure and highly exposed M-N sites, exhibits an unusual CO 2 RR activity with a CO FE of 98% at −0.8 V. Notably, an industrial current density of 300 mA cm −2 with a high FE of 91% is achieved on CA/N-Ni aerogel in a flow-cell reactor, which outperforms almost all previously reported M-N/carbon based catalysts. The CO 2 RR activity of different CA/N-M aerogels can be arranged as Ni, Fe, Co, Mn, and Cu from high to low. In situ spectroelectrochemistry analyses validate that the rate-determining step in the CO 2 RR is the formation of *COOH intermediate. A ZnCO 2 battery is further assembled with CA/N-Ni as the cathode, which shows a maximum power density of 0.5 mW cm −2 and a superior rechargeable stability.

show abstract

Boosting Industrial‐Level CO₂ Electroreduction of N‐Doped Carbon Nanofibers with Confined Tin‐Nitrogen Active Sites via Accelerating Proton Transport Kinetics

Liu

Cui

et al. 2022

Adv Funct Materials

View full text Add to dashboard Cite

The development of highly efficient robust electrocatalysts with low overpotential and industrial-level current density is of great significance for CO 2 electroreduction (CO 2 ER), however the low proton transport rate during the CO 2 ER remains a challenge. Herein, a porous N-doped carbon nanofiber confined with tin-nitrogen sites (Sn/NCNFs) catalyst is developed, which is prepared through an integrated electrospinning and pyrolysis strategy. The optimized Sn/NCNFs catalyst exhibits an outstanding CO 2 ER activity with the maximum CO FE of 96.5%, low onset potential of −0.3 V, and small Tafel slope of 68.8 mV dec −1 . In a flow cell, an industrial-level CO partial current density of 100.6 mA cm −2 is achieved. In situ spectroscopic analysis unveil the isolated SnN site acted as active center for accelerating water dissociation and subsequent proton transport process, thus promoting the formation of intermediate *COOH in the rate-determining step for CO 2 ER. Theoretical calculations validate pyrrolic N atom adjacent to the SnN active species assisted reducing the energy barrier for *COOH formation, thus boosting the CO 2 ER kinetics. A Zn-CO 2 battery is designed with the cathode of Sn/NCNFs, which delivers a maximum power density of 1.38 mW cm −2 and long-term stability.

show abstract

Constructing FeN4/graphitic nitrogen atomic interface for high-efficiency electrochemical CO2 reduction over a broad potential window

Cited by 179 publications

References 51 publications

Metal–Nitrogen–Carbon Catalysts of Specifically Coordinated Configurations toward Typical Electrochemical Redox Reactions

Metal–Nitrogen–Carbon Catalysts of Specifically Coordinated Configurations toward Typical Electrochemical Redox Reactions

Hierarchical Cross‐Linked Carbon Aerogels with Transition Metal‐Nitrogen Sites for Highly Efficient Industrial‐Level CO₂ Electroreduction

Boosting Industrial‐Level CO₂ Electroreduction of N‐Doped Carbon Nanofibers with Confined Tin‐Nitrogen Active Sites via Accelerating Proton Transport Kinetics

Contact Info

Product

Resources

About

Constructing FeN4/graphitic nitrogen atomic interface for high-efficiency electrochemical CO2 reduction over a broad potential window

Cited by 179 publications

References 51 publications

Metal–Nitrogen–Carbon Catalysts of Specifically Coordinated Configurations toward Typical Electrochemical Redox Reactions

Metal–Nitrogen–Carbon Catalysts of Specifically Coordinated Configurations toward Typical Electrochemical Redox Reactions

Hierarchical Cross‐Linked Carbon Aerogels with Transition Metal‐Nitrogen Sites for Highly Efficient Industrial‐Level CO2 Electroreduction

Boosting Industrial‐Level CO2 Electroreduction of N‐Doped Carbon Nanofibers with Confined Tin‐Nitrogen Active Sites via Accelerating Proton Transport Kinetics

Contact Info

Product

Resources

About

Hierarchical Cross‐Linked Carbon Aerogels with Transition Metal‐Nitrogen Sites for Highly Efficient Industrial‐Level CO₂ Electroreduction

Boosting Industrial‐Level CO₂ Electroreduction of N‐Doped Carbon Nanofibers with Confined Tin‐Nitrogen Active Sites via Accelerating Proton Transport Kinetics