One-step synthesis of dual-transition metal substitution on ionic liquid based N-doped mesoporous carbon for oxygen reduction reaction

Byambasuren, Ulziidelger; Jeon, Yukwon; Altansukh, Dorjgotov; Ji, Yunseong; Shul, Yong-Gun

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저자정보: Byambasuren, Ulziidelger (Department of Chemical and Biomolecular Engineering, Yonsei University) Jeon, Yukwon (Department of Chemical and Biomolecular Engineering, Yonsei University) Altansukh, Dorjgotov (Department of Chemical and Biomolecular Engineering, Yonsei University) Ji, Yunseong (Department of Chemical and Biomolecular Engineering, Yonsei University) Shul, Yong-Gun (Department of Chemical and Biomolecular Engineering, Yonsei University)

저널정보: 한국탄소학회 Carbon letters Carbon letters 제17권 제1호

발행연도: 2016.1

수록면: 53 - 64 (12page)

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Nitrogen (N)-doped ordered mesoporous carbons (OMCs) with a dual transition metal system were synthesized as non-Pt catalysts for the ORR. The highly nitrogen doped OMCs were prepared by the precursor of ionic liquid (3-methyl-1-butylpyridine dicyanamide) for N/C species and a mesoporous silica template for the physical structure. Mostly, N-doped carbons are promoted by a single transition metal to improve catalytic activity for ORR in PEMFCs. In this study, our N-doped mesoporous carbons were promoted by the dual transition metals of iron and cobalt (Fe, Co), which were incorporated into the N-doped carbons lattice by subsequently heat treatments. All the prepared carbons were characterized by via transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). To evaluate the activities of synthesized doped carbons, linear sweep was recorded in an acidic solution to compare the ORR catalytic activities values for the use in the PEMFC system. The dual transition metal promotion improved the ORR activity compared with the single transition metal promotion, due to the increase in the quaternary nitrogen species from the structural change by the dual metals. The effect of different ratio of the dual metals into the N doped carbon were examined to evaluate the activities of the oxygen reduction reaction.

#N-doped carbons #ordered mesoporous carbons #OMCs) #Ionic liquid #IL) #transition metal #Oxygen reduction reaction #ORR)

참고문헌 (38)

참고문헌 신청

Vijayadurga Nallathambi / 2008 / Development of high performance carbon composite catalyst for oxygen reduction reaction in PEM Proton Exchange Membrane fuel cells / Journal of Power Sources 183(1):34~42

Yongjun Feng / 2008 / Nonprecious metal catalysts for the molecular oxygen-reduction reaction / physica status solidi (b) 245(9):1792~1806

Zhongwei Chen / 2011 / A review on non-precious metal electrocatalysts for PEM fuel cells / Energy & Environmental Science 4(9):3167

Gang Liu / 2009 / Development of non-precious metal oxygen-reduction catalysts for PEM fuel cells based on N-doped ordered porous carbon / Applied Catalysis B: Environmental 93(1-2):156~165

Dae-Soo Yang / 2012 / Phosphorus-Doped Ordered Mesoporous Carbons with Different Lengths as Efficient Metal-Free Electrocatalysts for Oxygen Reduction Reaction in Alkaline Media / Journal of the American Chemical Society 134(39):16127~16130

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