Electrospun zirconia nanofibers for enhancing the electrochemical synthesis of ammonia by artificial nitrogen fixation

Jiaojiao XIA, Haoran GUO, Maozeng CHENG, Chuyan CHEN, Minkang WANG, Yong XIANG, Tingshuai LI*, Enrico TRAVERSA

*Corresponding author for this work

Research output: Journal PublicationsJournal Article (refereed)peer-review

43 Citations (Scopus)

Abstract

The electrocatalytic nitrogen reduction reaction (NRR) has been deemed a promising and reliable approach to massively produce ammonia under ambient conditions. A high-efficiency electrocatalyst with an excellent selectivity is highly required to reduce the multiple reaction barriers of N2+ 3H2O → 2NH3+ 1.5O2. Here, we report electrospun zirconia nanofibers as a non-noble NRR electrocatalyst to convert nitrogen to ammonia. Theoretical calculations predict that the Zr sites with oxygen vacancies are favorable for nitrogen adsorption and reduction. Experimentally, the larger concentration of oxygen defects in such an electrocatalyst allowed achieving a NH3formation rate of 9.63 μg h−1mgcat.−1and an optimal faradaic efficiency of 12.1% at −0.7 Vvs.the reversible hydrogen electrode in 0.1

Original languageEnglish
Pages (from-to)2145-2151
Number of pages7
JournalJournal of Materials Chemistry A
Volume9
Issue number4
Early online date16 Nov 2020
DOIs
Publication statusPublished - 2 Feb 2021
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry 2020.

Fingerprint

Dive into the research topics of 'Electrospun zirconia nanofibers for enhancing the electrochemical synthesis of ammonia by artificial nitrogen fixation'. Together they form a unique fingerprint.

Cite this