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A Nickel‐ and Cerium‐Doped Zeolite Composite: An Affordable Cathode Material for Biohydrogen Production in Microbial Electrolysis Cells
Author(s) -
Wang Jiaxin,
Li Yanchun,
Liu Miaomiao,
Li Zhifang,
Gao Xiaole,
Yang Donghua
Publication year - 2020
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.202000492
Subject(s) - tafel equation , biohydrogen , hydrogen production , cerium , chemistry , nickel , electrolysis , electrochemistry , cathode , chemical engineering , catalysis , composite number , electrolysis of water , x ray photoelectron spectroscopy , water splitting , nuclear chemistry , inorganic chemistry , materials science , composite material , electrolyte , organic chemistry , electrode , photocatalysis , engineering
Microbial electrolysis cells (MECs) is one of the promising biohydrogen production technologies for which low‐cost cathode materials are required and developed to propel the rapid development of MECs. Herein, the preparation of a low‐cost Ce 0.1 −Ni−Y composite is reported by using Y zeolite as carrier loaded with nickel (Ni) and cerium (Ce) as active components and its prominent electrochemical performance. The XPS analysis reveals that strong electronic interaction between Ni and Ce makes a great contribution to the electrochemical performance enhancement. The Ce 0.1 −Ni−Y with a peak current density of 39.8 A⋅m −2 in LSV, Tafel slope of 40.81 mV⋅dec −1 , ECSA of 34.3 and hydrogen yield of 0.312±0.013 m 3 ⋅m −3 d −1 are significantly superior to that of its parent Ni−Y counterpart and rival the performance of commercially Pt/C, which renders it a very promising hydrogen evolution catalyst for MECs.