English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Preparation and functionalization of free-standing nitrogen-doped carbon-based catalyst electrodes for electrocatalytic N2 fixation

MPS-Authors
/persons/resource/persons221971

Qin,  Qing
Martin Oschatz, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons244834

Brandi,  Francesco
Majd Al-Naji, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons239307

Badamdorj,  Bolortuya
Nadezda V. Tarakina, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons200485

Oschatz,  Martin
Martin Oschatz, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons227951

Al-Naji,  Majd
Majd Al-Naji, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

External Resource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Qin, Q., Brandi, F., Badamdorj, B., Oschatz, M., & Al-Naji, M. (2021). Preparation and functionalization of free-standing nitrogen-doped carbon-based catalyst electrodes for electrocatalytic N2 fixation. Molecular Catalysis, 515: 111935. doi:10.1016/j.mcat.2021.111935.


Cite as: http://hdl.handle.net/21.11116/0000-0009-6237-B
Abstract
Nitrogen-doped carbon-based materials have been recently explored as promising electrocatalysts for N2 fixation. Herein, a nitrogen-doped carbon film as a self-standing electrode is synthesized through a novel and scalable strategy. After the film synthesis, a thin layer of Au nanoparticles is deposited, significantly enhancing the performance of such films in electrocatalytic N2 reduction. Owing to the exposed active sites and unique free-standing structure, it shows desirable performance towards electrochemical N2 fixation with a high Faradaic efficiency of 6.4 %, and a NH3 production rate of 18.3 μg h−1 cm−2 at a low given potential of -0.05 V vs. reversible hydrogen electrode. Such performance is superior in comparison with Au-nanoparticles-modified nitrogen-doped carbon powder. Further comparison of nitrogen-doped carbon film and nitrogen-doped carbon powder also demonstrates the benefits of the free-standing structure in comparison to film-based materials in terms of charge transfer and active sites per electrode surface area.