title: High Performance Heteroatoms Quaternary-doped Carbon Catalysts Derived from Shewanella Bacteria for Oxygen Reduction.
abstract: A novel heteroatoms (N, P, S and Fe) quaternary-doped carbon (HQDC-X, X refers to the pyrolysis temperature) can be fabricated by directly pyrolyzing a gram-negative bacteria, S. oneidensis MR-1 as precursors at 800 °C, 900 °C and 1000 °C under argon atmosphere. These HQDC-X catalysts maintain the cylindrical shape of bacteria after pyrolysis under high temperatures, while heteroatoms including N, P, S and Fe distribute homogeneously on the carbon frameworks. As a result, HQDC-X catalysts exhibit excellent electrocatalytic activity for ORR via a dominant four-electron oxygen reduction pathway in alkaline medium, which is comparable with that of commercial Pt/C. More importantly, HQDC-X catalysts show better tolerance for methanol crossover and CO poisoning effects, long-term durability than commercial Pt/C, which could be promising alternatives to costly Pt-based electrocatalysts for ORR. The method may provide a promising avenue to develop cheap ORR catalysts from inexpensive, scalable and biological recursors.
authors.affiliation: Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, People's Republic of China.
authors.forename: Zhaoyan
authors.initials: Z
authors.lastname: Guo
authors.affiliation: Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, People's Republic of China.
authors.forename: Guangyuan
authors.initials: G
authors.lastname: Ren
authors.affiliation: Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, People's Republic of China.
authors.forename: Congcong
authors.initials: C
authors.lastname: Jiang
authors.affiliation: Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, People's Republic of China.
authors.forename: Xianyong
authors.initials: X
authors.lastname: Lu
authors.affiliation: Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, People's Republic of China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, P.R. China.
authors.forename: Lei
authors.initials: L
authors.lastname: Jiang
authors.affiliation: Department of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio, 44106, United States.
authors.forename: Liming
authors.initials: L
authors.lastname: Dai
mesh_terms: D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D055664:Electrochemical Techniques; D006358:Hot Temperature; D008855:Microscopy, Electron, Scanning; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry* / Q000378:metabolism; D016062:Porosity; D020592:Shewanella / Q000737:chemistry* / Q000378:metabolism; D013052:Spectrometry, X-Ray Emission
chemical_list: D002244:Carbon; D010100:Oxygen