Facile synthesis of single-nickel-atomic dispersed N-doped carbon framework for efficient electrochemical CO2 reduction

Lu, Peilong; Yang, Yijun; Yao, Jiannian; Wang, Meng; Dipazir, Sobia; Yuan, Menglei; Zhang, Jingxian; Wang, Xi; Xie, Zhujun; Zhang, Guangjin

doi:10.1016/j.apcatb.2018.09.025

Cited by 245 publications

(131 citation statements)

References 28 publications

Supporting

Mentioning

119

Contrasting

Unclassified

Order By: Relevance

“…This catalyst demonstrated high activity and selectivity for the CO 2 RR with faradaic efficiencies of 92–98%. A Ni single atom dispersed on the surface of 1D N‐doped carbon nanotube (Ni SAs/NCNTs) with Ni loading up to 6.63 wt% has been prepared by pyrolysis of 2‐methylimidazole and dicyandiamide together with Zn/Ni salts . The obtained catalysts exhibited high Faradaic efficiency of about 95% for CO 2 electroreduction to CO in a wide potential range.…”

Section: Fabrication Of Densely Populated Sacsmentioning

confidence: 99%

Densely Populated Single Atom Catalysts

et al. 2019

View full text Add to dashboard Cite

Developing highly efficient electrocatalysts with low cost is critical for the wide‐spread application of sustainable and renewable energy conversion technologies. Single‐atom catalysts (SACs) have attracted considerable attention owing to their high catalytic activity, selectivity, and stability. However, the high surface energy of the single atoms often results in an extremely low loading of metal atom catalysts with limited mass activity. In this context, densely populated SACs are more promising for practical applications due to their high active surface area and mass activity. Herein, the recent research progress of high loading (≥5 wt%) SACs for different electrocatalytic applications is summarized. An overview of various synthesis and characterization strategies of SACs is presented in this review. The influence of appropriate substrates on the preparation of high metal loading SACs is also discussed. In addition, this review provides valuable insights into the current challenges and future opportunities in the field of single‐atom catalysts.

show abstract

Section: Fabrication Of Densely Populated Sacsmentioning

confidence: 99%

Densely Populated Single Atom Catalysts

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The higher content of Ni nS MFe compared with SMFeSCN implies that SMFe is more defective, [30] which is consistent with the TEM, XRD, and Raman analyses. [31][32][33] The concentrationso fd ifferent Ns peciesw ere determined by calculating the area beneath the correspondingp eak (results are shown in Ta ble S1 in the Supporting Information). [31][32][33] The concentrationso fd ifferent Ns peciesw ere determined by calculating the area beneath the correspondingp eak (results are shown in Ta ble S1 in the Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Superior Selectivity and Tolerance towards Metal‐Ion Impurities of a Fe/N/C Catalyst for CO₂ Reduction

et al. 2019

View full text Add to dashboard Cite

The electrochemical CO2 reduction reaction (CO2RR) in aqueous solution inevitably competes with the hydrogen evolution reaction (HER), which results in a difficult separation of the complex products. In this study, a Fe/N/C catalyst derived from Fe(SCN)3 (labelled SMFeSCN) revealed a high CO Faradaic efficiency (FE) of 99 % at a moderate overpotential of 0.44 V. CO2RR and HER competed with each other for active sites on Fe/N/C. The high FE for CO production originated from the high content of micropores on the catalyst, which could suppress the side reactions by increasing CO2 uptake. More importantly, excellent tolerance towards metal‐ion impurities was demonstrated in Fe/N/C, which was primarily owing to the high specific surface area with scattered active sites. Thus, the Fe/N/C catalyst showed good activity for CO2RR without influencing the electrolyte purity, thus raising the possibility of its practical application.

show abstract

“…Electrocatalytic data from refs. . The detailed catalytic activity of these catalysts is presented in Table S4 (Supporting Information).…”

Section: Active Sites In Metal‐carbon Catalystsmentioning

confidence: 99%

A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO₂ to Value‐Added Chemicals and Fuel

Daiyan

Saputera

Masood

et al. 2020

Advanced Energy Materials

128

104

View full text Add to dashboard Cite

Renewable‐electricity‐powered electrocatalytic CO2 reduction reactions (CO2RR) have been identified as an emerging technology to address the issue of rising CO2 emissions in the atmosphere. While the CO2RR has been demonstrated to be technically feasible, further improvements in catalyst performance through active sites engineering are a prerequisite to accelerate its commercial feasibility for utilization in large CO2‐emitting industrial sources. Over the years, the improved understanding of the interaction of CO2 with the active sites has allowed superior catalyst design and subsequent attainment of prominent CO2RR activity in literature. This review tracks the evolution of the understanding of CO2RR active sites on different electrocatalysts such as metals, metal‐oxides, single atoms, metal‐carbon, and subsequently metal‐free carbon‐based catalysts. Despite the tremendous research efforts in the field, many scientific questions on the role of various active sites in governing CO2RR activity, selectivity, stability, and pathways are still unanswered. These gaps in knowledge are highlighted and a discussion is set forth on the merits of utilizing advanced in‐situ and operando characterization techniques and machine learning (ML). Using this technique, the underlying mechanisms can be discerned, and as a result new strategies for designing active sites may be uncovered. Finally, this review advocates an interdisciplinary approach to discover and design CO2RR active sites (rather than focusing merely on catalyst activity) in a bid to stimulate practical research for industrial application.

show abstract

Facile synthesis of single-nickel-atomic dispersed N-doped carbon framework for efficient electrochemical CO2 reduction

Cited by 245 publications

References 28 publications

Densely Populated Single Atom Catalysts

Densely Populated Single Atom Catalysts

Superior Selectivity and Tolerance towards Metal‐Ion Impurities of a Fe/N/C Catalyst for CO₂ Reduction

A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO₂ to Value‐Added Chemicals and Fuel

Contact Info

Product

Resources

About

Facile synthesis of single-nickel-atomic dispersed N-doped carbon framework for efficient electrochemical CO2 reduction

Cited by 245 publications

References 28 publications

Densely Populated Single Atom Catalysts

Densely Populated Single Atom Catalysts

Superior Selectivity and Tolerance towards Metal‐Ion Impurities of a Fe/N/C Catalyst for CO2 Reduction

A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO2 to Value‐Added Chemicals and Fuel

Contact Info

Product

Resources

About

Superior Selectivity and Tolerance towards Metal‐Ion Impurities of a Fe/N/C Catalyst for CO₂ Reduction

A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO₂ to Value‐Added Chemicals and Fuel