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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
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 | ||||||||||||
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| 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 | ||||||||||||
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| 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: |
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