A Ferrocene Metal-Organic Framework Solid for Fe-Loaded Carbon Matrices and Nanotubes : High-Yield Synthesis and Oxygen Reduction Electrocatalysis

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

View graph of relations

Author(s)

  • Shengxian Cheng
  • Xiaohui Xu
  • Jieying Hu
  • Dohyun Ahn
  • Jun He

Detail(s)

Original languageEnglish
Pages (from-to)17315–17324
Journal / PublicationInorganic Chemistry
Volume60
Issue number22
Online published4 Nov 2021
Publication statusPublished - 15 Nov 2021

Abstract

Using a carbon-rich designer metal-organic framework (MOF), we open a high-yield synthetic strategy for iron-nitrogen-doped carbon (Fe-N-C) nanotube materials that emulate the electrocatalysis performance of commercial Pt/C. The Zr(IV)-based MOF solid boasts multiple key functions: (1) a dense array of alkyne units over the backbone and the side arms, which are primed for extensive graphitization; (2) the open, branched structure helps maintain porosity for absorbing nitrogen dopants; and (3) ferrocene units on the side arms as atomically dispersed precursor catalyst for targeting micropores and for effective iron encapsulation in the carbonized product. As a result, upon pyrolysis, over 89% of the carbon component in the MOF scaffold is successfully converted into carbonized products, thereby contrasting the easily volatilized carbon of most MOFs. Moreover, over 97% of the iron ends up being encased as acid-resistant Fe/Fe3C nanoparticles in carbon nanotubes/carbon matrices.

Citation Format(s)

A Ferrocene Metal-Organic Framework Solid for Fe-Loaded Carbon Matrices and Nanotubes : High-Yield Synthesis and Oxygen Reduction Electrocatalysis. / Cheng, Shengxian; Ma, Tengrui; Xu, Xiaohui; Du, Peng; Hu, Jieying; Xin, Yinger; Ahn, Dohyun; He, Jun; Xu, Zhengtao.

In: Inorganic Chemistry, Vol. 60, No. 22, 15.11.2021, p. 17315–17324.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review