Applied Chemical Engineering

Controllable preparation and electrocatalytic hydrogen evolution characteristics of Fe3S4 nanocrystals

Mingxia Li

School of Chemistry, Chemical Engineering and Materials, Heilongjiang University

Ni Xiong

School of Chemistry, Chemical Engineering and Materials, Heilongjiang University

Xin Zhou

School of Chemistry and Chemical Engineering, Harbin Institute of Technology

Weiqi Li

School of Chemistry and Chemical Engineering, Harbin Institute of Technology

DOI: https://doi.org/10.24294/ace.v5i1.1401

Keywords: Nanocrystals, Electrocatalytic Dehydrogenation Properties, Controllable Fabrication MgO

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Abstract

In order to obtain better electrocatalytic hydrogen evolution performance, Fe₃S₄ with different morphologies was synthesized by controlling the reaction conditions. During that progress, the ferric oleate as an iron source, and the sulfur powder dissolved in oleylamine as a sulfur source. Fe₃S₄ with particle morphology proved to have the best electrochemical catalytic activity after adding 40% carbon black. In dehydrogenation, the overpotential was 234 mV and the Tafel slope was 213 mV/dec at a current density of 10 mA/cm². Meanwhile, Fe₃S₄ with a particle morphology exhibited superior electrochemical stability. Therefore, the controllably fabricated Fe₃S₄ with a particle morphology is a promising electrocatalyst for dehydrogenation.

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References

[1] Raj IA, Vasu KI. Transition metal-based cathodes for hydrogen evolution in alkaline solution: Electrocatalysis on nickel-based ternary electrolytic codeposits. Journal of Applied Electrochemistry 1992; 22(5): 471–477.

[2] Hinnemann B, Moses PG, Bonde J, et al. Biomimetic hydrogen evolution: MoS2 nanoparticles as catalyst for hydrogen evolution. Journal of the American Chemical Society 2005; 127(15): 5308–5309.

[3] Xie J, Zhang J, Li S, et al. Controllable disorder engineering in oxygen-incorporated MoS2 ultrathin nanosheets for efficient hydrogen evolution. Journal of the American Chemical Society 2013; 135(47): 17881–17888.

[4] Chen W, Sasaki K, Ma C, et al. Hydrogen-evolution catalysts based on non-noble metal nickel-molybdenum nitride nanosheets. Angewandte Chemie (International ed. in English) 2012; 51(25): 6131–6135.

[5] Zhang L, Liang D, Ye C, et al. Preparation and electrochemical properties of NiCo2O4 @ nitride carbon composites. Journal of Engineering of Hei-longjiang University 2019; 10(4): 45–49.

[6] Ma L, Ting LRL, Molinari V, et al. Efficient hydrogen evolution reaction catalyzed by molybdenum carbide and molybdenum nitride nanocata-lysts synthesized via the urea glass route. Journal of Materials Chemistry A 2015; 3(16): 8361–8368.

[7] Vrubel H, Hu X. Molybdenum boride and carbide catalyze hydrogen evolution in both acidic and basic solutions. Angewandte Chemie (International ed. in English) 2012; 51(51): 12703–12706.

[8] Luo Y, Liu M, Chen Y, et al. Study on regeneration conditions and effect of iron modified nanocellulose saturated with phosphorus adsorption. Journal of Natural Science of Heilongjiang University 2019; 36(4): 436–441.

[9] Xiong N. Controllable construction and electrocatalytic properties of iron-based sulfur (selenium) nanocrystals (in Chinese) [Master’s thesis]. Harbin: Heilongjiang University; 2018.

[10] Song W, Dong Y, Jie L, et al. Study on electron absorption spectroscopy of reduced graphene oxide regulated by de-localized crystal carbon. Journal of Engineering of Heilongjiang University 2019; 10(1): 45–42.