Self-powered H2 production with bifunctional hydrazine as sole consumable

Xijun Liu, Jia He, Shunzheng Zhao, Yunpeng Liu, Zhe Zhao, Jun Luo (), Guangzhi Hu (), Xiaoming Sun and Yi Ding ()
Additional contact information
Xijun Liu: Tianjin University of Technology
Jia He: Tianjin University of Technology
Shunzheng Zhao: University of Science and Technology Beijing
Yunpeng Liu: Chinese Academy of Sciences
Zhe Zhao: Tianjin University of Technology
Jun Luo: Tianjin University of Technology
Guangzhi Hu: Chinese Academy of Sciences
Xiaoming Sun: Beijing University of Chemical Technology
Yi Ding: Tianjin University of Technology

Nature Communications, 2018, vol. 9, issue 1, 1-10

Abstract: Abstract Splitting hydrazine into H2 and N2 by electro-catalyzing hydrogen evolution and hydrazine oxidation reactions is promising for replacing fossil energy with H2. However, current hydrazine splitting is achieved using external powers to drive the two reactions, which is inapplicable to outdoor use. Here, Fe-doped CoS2 nanosheets are developed as a bifunctional electrocatalyst for the two reactions, by which direct hydrazine fuel cells and overall-hydrazine-splitting units are realized and integrated to form a self-powered H2 production system. Without external powers, this system employs hydrazine bifunctionally as the fuel of direct hydrazine fuel cell and the splitting target, namely a sole consumable, and exhibits an H2 evolution rate of 9.95 mmol h−1, a 98% Faradaic efficiency and a 20-h stability, all comparable to the best reported for self-powered water splitting. These performances are due to that Fe doping decreases the free-energy changes of H adsorption and adsorbed NH2NH2 dehydrogenation on CoS2.

Date: 2018
References: Add references at CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.nature.com/articles/s41467-018-06815-9 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-06815-9

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-018-06815-9

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().