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Investigation of perovskite oxide SrCo 0.8 Cu 0.1 Nb 0.1 O 3– δ as a cathode material for room temperature direct ammonia fuel cells

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Zou, Peimiao, Chen, Shigang, Lan, Rong and Tao, Shanwen (2019) Investigation of perovskite oxide SrCo 0.8 Cu 0.1 Nb 0.1 O 3– δ as a cathode material for room temperature direct ammonia fuel cells. ChemSusChem, 12 (12). pp. 2788-2794. doi:10.1002/cssc.201900451

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Official URL: http://dx.doi.org/10.1002/cssc.201900451

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Abstract

Single‐phase perovskite oxide SrCo0.8Cu0.1Nb0.1O3–δ was synthesized using a Pechini method. X‐ray diffraction (XRD) analysis indicated a cubic structure with a=3.8806(7) Å. The oxide material was combined with active carbon, forming a composite electrode to be used as the cathode in a room temperature ammonia fuel cell based on an anion membrane electrolyte and NiCu/C anode. An open circuit voltage (OCV) of 0.19 V was observed with dilute 0.02 m (340 ppm) ammonia solution as the fuel. The power density and OCV were improved upon the addition of 1 m NaOH to the fuel, suggesting that the addition of NaOH, which could be achieved through the introduction of alkaline waste to the fuel stream, could improve performance when wastewater is used as the fuel. It was found that the SrCo0.8Cu0.1Nb0.1O3−δ cathode was converted from irregular shape into shuttle‐shape during the fuel cell measurements. As the key catalysts for electrode materials for this fuel cell are all inexpensive, after further development, this could be a promising technology for removal of ammonia from wastewater.

Item Type: Journal Article
Divisions: Faculty of Science > Engineering
Journal or Publication Title: ChemSusChem
Publisher: Wiley - V C H Verlag GmbbH & Co.
ISSN: 1864-5631
Official Date: 24 June 2019
Dates:
DateEvent
24 June 2019Published
22 May 2019Available
12 April 2019Accepted
Volume: 12
Number: 12
Page Range: pp. 2788-2794
DOI: 10.1002/cssc.201900451
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
EP/G01244X/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
104010Innovate UKhttp://dx.doi.org/10.13039/501100006041
133714Innovate UKhttp://dx.doi.org/10.13039/501100006041

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