A Nickel- and Cerium-Doped Zeolite Composite: An Affordable Cathode Material for Biohydrogen Production in Microbial Electrolysis Cells.,ChemPlusChem

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A Nickel- and Cerium-Doped Zeolite Composite: An Affordable Cathode Material for Biohydrogen Production in Microbial Electrolysis Cells.
ChemPlusChem ( IF 3.0 ) Pub Date : 2020-08-30 , DOI: 10.1002/cplu.202000492
Jiaxin Wang ₁ , Yanchun Li ₁ , Miaomiao Liu ₂ , Zhifang Li ₁ , Xiaole Gao ₁ , Donghua Yang ₁

Affiliation

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 m³⋅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.

中文翻译：

掺镍和铈的沸石复合材料：一种在微生物电解池中生产生物氢的可负担的阴极材料。

微生物电解池（MEC）是一种有前途的生物氢生产技术，需要低成本的阴极材料并进行开发以推动MEC的快速发展。在此，报道了以Y沸石为载体，负载镍（Ni）和铈（Ce）作为活性成分的低成本Ce _0.1 -Ni-Y复合材料的制备及其优异的电化学性能。XPS分析表明，镍和铈之间的强电子相互作用为电化学性能的提高做出了巨大贡献。Ce的_0.1 -Ni-Y与39.8A⋅m的峰值电流密度^-2在LSV，40.81mV⋅dec的塔菲尔斜率^-1，34.3 ECSA和氢气产率的0.312±0.013米³ ⋅m^-3 d ^-1明显优于其母体Ni-Y对应物，并与商业化Pt / C的性能相抗衡，这使其成为用于MEC的非常有前途的制氢催化剂。

更新日期：2020-10-12

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