Three-dimensional open nano-netcage electrocatalysts for efficient pH-universal overall water splitting

Zewen Zhuang, Yu Wang, Cong-Qiao Xu, Shoujie Liu, Chen Chen (), Qing Peng (), Zhongbin Zhuang, Hai Xiao, Yuan Pan, Siqi Lu, Rong Yu, Weng-Chon Cheong, Xing Cao, Konglin Wu, Kaian Sun, Yu Wang, Dingsheng Wang, Jun Li and Yadong Li ()
Additional contact information
Zewen Zhuang: Tsinghua University
Yu Wang: Tsinghua University
Cong-Qiao Xu: Southern University of Science and Technology
Shoujie Liu: Tsinghua University
Chen Chen: Tsinghua University
Qing Peng: Tsinghua University
Zhongbin Zhuang: Beijing University of Chemical Technology
Hai Xiao: Tsinghua University
Yuan Pan: Tsinghua University
Siqi Lu: Beijing University of Chemical Technology
Rong Yu: Tsinghua University
Weng-Chon Cheong: Tsinghua University
Xing Cao: Tsinghua University
Konglin Wu: Tsinghua University
Kaian Sun: Tsinghua University
Yu Wang: Chinese Academy of Science
Dingsheng Wang: Tsinghua University
Jun Li: Tsinghua University
Yadong Li: Tsinghua University

Nature Communications, 2019, vol. 10, issue 1, 1-10

Abstract: Abstract High-efficiency water electrolysis is the key to sustainable energy. Here we report a highly active and durable RuIrOx (x ≥ 0) nano-netcage catalyst formed during electrochemical testing by in-situ etching to remove amphoteric ZnO from RuIrZnOx hollow nanobox. The dispersing-etching-holing strategy endowed the porous nano-netcage with a high exposure of active sites as well as a three-dimensional accessibility for substrate molecules, thereby drastically boosting the electrochemical surface area (ECSA). The nano-netcage catalyst achieved not only ultralow overpotentials at 10 mA cm−2 for hydrogen evolution reaction (HER; 12 mV, pH = 0; 13 mV, pH = 14), but also high-performance overall water electrolysis over a broad pH range (0 ~ 14), with a potential of mere 1.45 V (pH = 0) or 1.47 V (pH = 14) at 10 mA cm−2. With this universal applicability of our electrocatalyst, a variety of readily available electrolytes (even including waste water and sea water) could potentially be directly used for hydrogen production.

Date: 2019
References: Add references at CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.nature.com/articles/s41467-019-12885-0 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:10:y:2019:i:1:d:10.1038_s41467-019-12885-0

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

DOI: 10.1038/s41467-019-12885-0

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 ().