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  • Hu, XiangzhaoKey Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China (författare)

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

  • Artikel/kapitelEngelska2023

Förlag, utgivningsår, omfång ...

  • 2022-11-28
  • John Wiley and Sons Inc,2023
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:kth-328850
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-328850URI
  • https://doi.org/10.1002/adfm.202208781DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • QC 20230614
  • The development of highly efficient robust electrocatalysts with low overpotential and industrial-level current density is of great significance for CO2 electroreduction (CO2ER), however the low proton transport rate during the CO2ER 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 CO2ER 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 CO2ER. Theoretical calculations validate pyrrolic N atom adjacent to the Sn-N active species assisted reducing the energy barrier for *COOH formation, thus boosting the CO2ER kinetics. A Zn-CO2 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.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Liu, YingnanKey Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China (författare)
  • Cui, WenjunResearch and Testing Centre of Material School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China (författare)
  • Yang, XiaoxuanKey Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China (författare)
  • Li, Jiantong,1980-KTH,Elektronik och inbyggda system(Swepub:kth)u1nlco2z (författare)
  • Zheng, SixingKey Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China (författare)
  • Yang, BinKey Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China; Institute of Zhejiang University – Quzhou, Quzhou, 324000, China (författare)
  • Li, ZhongjianKey Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China; Institute of Zhejiang University – Quzhou, Quzhou, 324000, China (författare)
  • Sang, XiahanResearch and Testing Centre of Material School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China (författare)
  • Xu, YuanyuanKTH,Wallenberg Wood Science Center(Swepub:kth)u1xhe9p3 (författare)
  • Lei, LechengKey Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China; Institute of Zhejiang University – Quzhou, Quzhou, 324000, China (författare)
  • Hou, YangKey Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China; Institute of Zhejiang University – Quzhou, Quzhou, 324000, China; School of Biological and Chemical Engineering, NingboTech University, 1 South Qianhu Road, Ningbo, Zhejiang, 315100, China, 1 South Qianhu Road, Zhejiang; Donghai Laboratory, No.1 Zheda Road, Zhoushan, Zhejiang, 316021, China, No.1 Zheda Road, Zhejiang (författare)
  • Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, ChinaResearch and Testing Centre of Material School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Advanced Functional Materials: John Wiley and Sons Inc33:41616-301X1616-3028

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