Journal
ENERGY CONVERSION AND MANAGEMENT
Volume 227, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2020.113628
Keywords
Hydrogen evolution reaction (HER); Biomass; Watermelon rind; Mo2C/C; Electrocatalyst
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Funding
- National Natural Science Foundation of China [21676125, 31801552]
- National Natural Science Foundation [21676129, 21777063]
- Social Development Program (General Project) of Jiangsu [BE2020740240]
- Science and Technology Foundation of Zhenjiang [GY2016021, GY2017001, YE201709]
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A novel approach was introduced to fabricate efficient Mo2C/C electrocatalysts from biomass waste, demonstrating excellent hydrogen evolution reaction performance and long-term durability.
The development of novel, efficient, durable and cheap electrocatalysts for hydrogen evolution reaction (HER) by electrochemical water-splitting is pivotal to solving the persisting energy problem related to hydrogen utilization as a renewable energy. Thus, Pt-like materials that are efficient, stable and cheap must be fabricated to overcome the commercial challenges facing electrocatalysts. Herein, biomass derived Mo2C/C electrocatalysts based on watermelon peels were fabricated for HER application through a simplistic two step approach and easy pyrolysis procedure. Benefiting from the excellent HER performances, abundant mass transfer of electrons, large surface areas and unique pore sizes of the fabricated Mo2C/C electrocatalysts, Mo2C/C-800 degrees C required geometrical overpotential of 133 mV to deliver a current density of 10 mA cm(-2) in 1.0 M of KOH solution; and further displayed long-term durability process for 300 h. This study therefore introduced a novel approach to designing excellent electrocatalysts from biomass waste for HER application.
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