Fe, N-Doped Metal Organic Framework Prepared by the Calcination of Iron Chelated Polyimines as the Cathode-Catalyst of Proton Exchange Membrane Fuel Cells

Aromatic polyimine (PIM) was prepared through condensation polymerization between p-phenylene diamine and terephthalaldehyde via Schiff reactions. PIM can be physically crosslinked with ferrous ions into gel. The gel-composites, calcined at two consecutive stages, with temperatures ranging from 600...

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Autores principales:	Yu-Wei Cheng, Wen-Yao Huang, Ko-Shan Ho, Tar-Hwa Hsieh, Li-Cheng Jheng, Yang-Ming Kuo
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	FeNC catalyst polyimine two-stage calcination oxygen reduction reaction Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/5ac9d5b7456b47d38f5888c0100751c5
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spelling	oai:doaj.org-article:5ac9d5b7456b47d38f5888c0100751c52021-11-11T18:49:06ZFe, N-Doped Metal Organic Framework Prepared by the Calcination of Iron Chelated Polyimines as the Cathode-Catalyst of Proton Exchange Membrane Fuel Cells10.3390/polym132138502073-4360https://doaj.org/article/5ac9d5b7456b47d38f5888c0100751c52021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3850https://doaj.org/toc/2073-4360Aromatic polyimine (PIM) was prepared through condensation polymerization between p-phenylene diamine and terephthalaldehyde via Schiff reactions. PIM can be physically crosslinked with ferrous ions into gel. The gel-composites, calcined at two consecutive stages, with temperatures ranging from 600 to 1000 °C, became Fe- and N-doped carbonaceous organic frameworks (FeNC), which demonstrated both graphene- and carbon nanotube-like morphologies and behaved as an electron-conducting medium. After the two-stage calcination, one at 1000 °C in N<sub>2</sub> and the other at 900 °C in a mixture of N<sub>2</sub> and NH<sub>3</sub>, an FeNC composite (FeNC-1000A900) was obtained, which demonstrated a significant O<sub>2</sub> reduction peak in its current–voltage curve in the O<sub>2</sub> atmosphere, and thus, qualified as a catalyst for the oxygen reduction reaction. It also produced a higher reduction current than that of commercial Pt/C in a linear scanning voltage test, and the calculated e-transferred number reached 3.85. The max. power density reached 400 mW·cm<sup>−2</sup> for the single cell using FeNC-1000A900 as the cathode catalyst, which was superior to other FeNC catalysts that were calcined at lower temperatures. The FeNC demonstrated only 10% loss of the reduction current at 1600 rpm after 1000 redox cycles, as compared to be 25% loss for the commercial Pt/C catalyst in the durability test.Yu-Wei ChengWen-Yao HuangKo-Shan HoTar-Hwa HsiehLi-Cheng JhengYang-Ming KuoMDPI AGarticleFeNC catalystpolyiminetwo-stage calcinationoxygen reduction reactionOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3850, p 3850 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	FeNC catalyst polyimine two-stage calcination oxygen reduction reaction Organic chemistry QD241-441
spellingShingle	FeNC catalyst polyimine two-stage calcination oxygen reduction reaction Organic chemistry QD241-441 Yu-Wei Cheng Wen-Yao Huang Ko-Shan Ho Tar-Hwa Hsieh Li-Cheng Jheng Yang-Ming Kuo Fe, N-Doped Metal Organic Framework Prepared by the Calcination of Iron Chelated Polyimines as the Cathode-Catalyst of Proton Exchange Membrane Fuel Cells
description	Aromatic polyimine (PIM) was prepared through condensation polymerization between p-phenylene diamine and terephthalaldehyde via Schiff reactions. PIM can be physically crosslinked with ferrous ions into gel. The gel-composites, calcined at two consecutive stages, with temperatures ranging from 600 to 1000 °C, became Fe- and N-doped carbonaceous organic frameworks (FeNC), which demonstrated both graphene- and carbon nanotube-like morphologies and behaved as an electron-conducting medium. After the two-stage calcination, one at 1000 °C in N<sub>2</sub> and the other at 900 °C in a mixture of N<sub>2</sub> and NH<sub>3</sub>, an FeNC composite (FeNC-1000A900) was obtained, which demonstrated a significant O<sub>2</sub> reduction peak in its current–voltage curve in the O<sub>2</sub> atmosphere, and thus, qualified as a catalyst for the oxygen reduction reaction. It also produced a higher reduction current than that of commercial Pt/C in a linear scanning voltage test, and the calculated e-transferred number reached 3.85. The max. power density reached 400 mW·cm<sup>−2</sup> for the single cell using FeNC-1000A900 as the cathode catalyst, which was superior to other FeNC catalysts that were calcined at lower temperatures. The FeNC demonstrated only 10% loss of the reduction current at 1600 rpm after 1000 redox cycles, as compared to be 25% loss for the commercial Pt/C catalyst in the durability test.
format	article
author	Yu-Wei Cheng Wen-Yao Huang Ko-Shan Ho Tar-Hwa Hsieh Li-Cheng Jheng Yang-Ming Kuo
author_facet	Yu-Wei Cheng Wen-Yao Huang Ko-Shan Ho Tar-Hwa Hsieh Li-Cheng Jheng Yang-Ming Kuo
author_sort	Yu-Wei Cheng
title	Fe, N-Doped Metal Organic Framework Prepared by the Calcination of Iron Chelated Polyimines as the Cathode-Catalyst of Proton Exchange Membrane Fuel Cells
title_short	Fe, N-Doped Metal Organic Framework Prepared by the Calcination of Iron Chelated Polyimines as the Cathode-Catalyst of Proton Exchange Membrane Fuel Cells
title_full	Fe, N-Doped Metal Organic Framework Prepared by the Calcination of Iron Chelated Polyimines as the Cathode-Catalyst of Proton Exchange Membrane Fuel Cells
title_fullStr	Fe, N-Doped Metal Organic Framework Prepared by the Calcination of Iron Chelated Polyimines as the Cathode-Catalyst of Proton Exchange Membrane Fuel Cells
title_full_unstemmed	Fe, N-Doped Metal Organic Framework Prepared by the Calcination of Iron Chelated Polyimines as the Cathode-Catalyst of Proton Exchange Membrane Fuel Cells
title_sort	fe, n-doped metal organic framework prepared by the calcination of iron chelated polyimines as the cathode-catalyst of proton exchange membrane fuel cells
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5ac9d5b7456b47d38f5888c0100751c5
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Fe, N-Doped Metal Organic Framework Prepared by the Calcination of Iron Chelated Polyimines as the Cathode-Catalyst of Proton Exchange Membrane Fuel Cells

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