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Salt-induced silk gel-derived N and trace Fe co-doped 3D porous carbon as an oxygen reduction catalyst in microbial fuel cells.
Nanoscale. 2019 Jul 28; 11(28):13431-13439.N

Abstract

Inexpensive and high-efficiency oxygen reduction reaction (ORR) catalysts play a significant role in achieving practical applications of microbial fuel cells (MFCs). Hence, herein, novel nitrogen (N) and trace iron (Fe) co-doped three-dimensional (3D) porous carbon (NFex-C) was synthesized as an excellent ORR catalyst from an interesting salt-induced silk gel, which was beneficial to the spontaneously formation of porosity and boosted the ORR activity. Among the series of NFex-C, NFe0.5-C (1.20% N-ORR/C, 0.07 at% Fe) possessed a higher specific surface area (538.94 m2 g-1) and pore volume (2.158 cm3 g-1). Note that NFe0.5-C exhibited a significantly higher positive initial potential (0.274 V vs. Ag/AgCl) and half-wave potential (0.095 V vs. Ag/AgCl) than other catalysts and commercial Pt/C (20 wt%); this implied that it possessed prominent ORR catalytic activity. In the MFC tests, the output-voltage and maximum power density of NFe0.5-C were enhanced to 517.37 ± 7.87 mV and 605.35 ± 15.39 mW m-2, respectively. Moreover, NFe0.5-C (0.15 $ g-1) exhibits excellent anti-poisoning ability and is thousands of times cheaper than commercial Pt/C (20 wt%, 220.04 $ g-1); therefore, NFe0.5-C should be a prospective catalyst to substitute precious commercial Pt/C in MFCs and even for application in other types of fuel cells.

Authors+Show Affiliations

Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, PR China. weill@iccas.ac.cn jqshen@iccas.ac.cn and University of Chinese Academy of Sciences, Beijing 100049, PR China.Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, PR China. weill@iccas.ac.cn jqshen@iccas.ac.cn.Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, PR China. weill@iccas.ac.cn jqshen@iccas.ac.cn and University of Chinese Academy of Sciences, Beijing 100049, PR China.Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, PR China. weill@iccas.ac.cn jqshen@iccas.ac.cn and University of Chinese Academy of Sciences, Beijing 100049, PR China.Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, PR China. weill@iccas.ac.cn jqshen@iccas.ac.cn and University of Chinese Academy of Sciences, Beijing 100049, PR China.Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, PR China. weill@iccas.ac.cn jqshen@iccas.ac.cn and University of Chinese Academy of Sciences, Beijing 100049, PR China.Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, PR China. weill@iccas.ac.cn jqshen@iccas.ac.cn.Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, PR China. weill@iccas.ac.cn jqshen@iccas.ac.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31281907

Citation

Liu, Jianting, et al. "Salt-induced Silk Gel-derived N and Trace Fe Co-doped 3D Porous Carbon as an Oxygen Reduction Catalyst in Microbial Fuel Cells." Nanoscale, vol. 11, no. 28, 2019, pp. 13431-13439.
Liu J, Wei L, Cao C, et al. Salt-induced silk gel-derived N and trace Fe co-doped 3D porous carbon as an oxygen reduction catalyst in microbial fuel cells. Nanoscale. 2019;11(28):13431-13439.
Liu, J., Wei, L., Cao, C., Zhang, F., Lang, F., Wang, H., Yang, H., & Shen, J. (2019). Salt-induced silk gel-derived N and trace Fe co-doped 3D porous carbon as an oxygen reduction catalyst in microbial fuel cells. Nanoscale, 11(28), 13431-13439. https://doi.org/10.1039/c9nr03778k
Liu J, et al. Salt-induced Silk Gel-derived N and Trace Fe Co-doped 3D Porous Carbon as an Oxygen Reduction Catalyst in Microbial Fuel Cells. Nanoscale. 2019 Jul 28;11(28):13431-13439. PubMed PMID: 31281907.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Salt-induced silk gel-derived N and trace Fe co-doped 3D porous carbon as an oxygen reduction catalyst in microbial fuel cells. AU - Liu,Jianting, AU - Wei,Liling, AU - Cao,Chun, AU - Zhang,Fengtao, AU - Lang,Fengzheng, AU - Wang,Huiqiang, AU - Yang,Haijun, AU - Shen,Jianquan, Y1 - 2019/07/08/ PY - 2019/7/10/pubmed PY - 2019/12/26/medline PY - 2019/7/9/entrez SP - 13431 EP - 13439 JF - Nanoscale JO - Nanoscale VL - 11 IS - 28 N2 - Inexpensive and high-efficiency oxygen reduction reaction (ORR) catalysts play a significant role in achieving practical applications of microbial fuel cells (MFCs). Hence, herein, novel nitrogen (N) and trace iron (Fe) co-doped three-dimensional (3D) porous carbon (NFex-C) was synthesized as an excellent ORR catalyst from an interesting salt-induced silk gel, which was beneficial to the spontaneously formation of porosity and boosted the ORR activity. Among the series of NFex-C, NFe0.5-C (1.20% N-ORR/C, 0.07 at% Fe) possessed a higher specific surface area (538.94 m2 g-1) and pore volume (2.158 cm3 g-1). Note that NFe0.5-C exhibited a significantly higher positive initial potential (0.274 V vs. Ag/AgCl) and half-wave potential (0.095 V vs. Ag/AgCl) than other catalysts and commercial Pt/C (20 wt%); this implied that it possessed prominent ORR catalytic activity. In the MFC tests, the output-voltage and maximum power density of NFe0.5-C were enhanced to 517.37 ± 7.87 mV and 605.35 ± 15.39 mW m-2, respectively. Moreover, NFe0.5-C (0.15 $ g-1) exhibits excellent anti-poisoning ability and is thousands of times cheaper than commercial Pt/C (20 wt%, 220.04 $ g-1); therefore, NFe0.5-C should be a prospective catalyst to substitute precious commercial Pt/C in MFCs and even for application in other types of fuel cells. SN - 2040-3372 UR - https://www.unboundmedicine.com/medline/citation/31281907/Salt_induced_silk_gel_derived_N_and_trace_Fe_co_doped_3D_porous_carbon_as_an_oxygen_reduction_catalyst_in_microbial_fuel_cells_ L2 - https://doi.org/10.1039/c9nr03778k DB - PRIME DP - Unbound Medicine ER -