Publication detail

Ultrathin manganese oxides enhance the electrocatalytic properties of 3D printed carbon catalysts for electrochemical nitrate reduction to ammonia

GAO, W. PERALES RONDON, J. MICHALIČKA, J. PUMERA, M.

Original Title

Ultrathin manganese oxides enhance the electrocatalytic properties of 3D printed carbon catalysts for electrochemical nitrate reduction to ammonia

Type

journal article in Web of Science

Language

English

Original Abstract

Electrochemical nitrate reduction reaction (NO3RR) is a promising approach to remedying the environmental pollution from nitrate, and simultaneously a sustainable alternative to traditional Haber-Bosch process especially for decentralized ammonia production. Here, we firstly explore the electrocatalytic activity of two 3D printed carbon frameworks consisting of 0-dimentional (0D) carbon black and 1-dimentional (1D) carbon nanotubes towards cost-efficient electrocatalysts for NO3RR. Different from the electrocatalytic inert properties of 0D carbon framework, 1D carbon framework exhibits the electrocatalytic activity for NO3RR with a Faradaic efficiency of more than 50% at - 1.21 V vs. RHE. Control experiments suggest that such activity originates from the synergistic electrocatalytic contributions between intrinsic surface features of carbon nanotubes and metallic impurities. Since the content and distribution of these metallic impurities are unpredictable, an ultrathin deposit of electrocatalytic manganese oxides is further deposited by atomic layer deposition on 1D carbon framework to ensure well defined surfaces for effective NO3RR. The proposed strategy by integrating 3D printing of conductive carbon framework with atomic layer deposition of an electrocatalytic layer provides a feasible electrode fabrication for electrochemical NO3RR and shows a promising prospect in the electrocatalytic field.

Keywords

3D printing; Atomic layer deposition; Carbon materials; Manganese oxides; Ammonia; Electrocatalysts

Authors

GAO, W.; PERALES RONDON, J.; MICHALIČKA, J.; PUMERA, M.

Released

5. 8. 2023

Publisher

ELSEVIER

Location

AMSTERDAM

ISBN

1873-3883

Periodical

Applied Catalysis B: Environmental

Year of study

330

Number

122632

State

Kingdom of the Netherlands

Pages count

11

URL

https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0926337323002758?via%3Dihub

BibTex

@article{BUT186965,
  author="Wanli {Gao} and Juan Victor {Perales Rondon} and Jan {Michalička} and Martin {Pumera}",
  title="Ultrathin manganese oxides enhance the electrocatalytic properties of 3D printed carbon catalysts for electrochemical nitrate reduction to ammonia",
  journal="Applied Catalysis B: Environmental",
  year="2023",
  volume="330",
  number="122632",
  pages="11",
  doi="10.1016/j.apcatb.2023.122632",
  issn="1873-3883",
  url="https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0926337323002758?via%3Dihub"
}