期刊
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
卷 2023, 期 -, 页码 -出版社
WILEY-HINDAWI
DOI: 10.1155/2023/8980888
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Developing a low-cost hybrid electrocatalyst for hydrogen production is crucial. MXene-based materials with layered structure and strong electrical conductivity have been increasingly used in energy storage devices. In this study, heteroatom- (boron and sulfur-) doped MXene (B, S-Ti3C2Tx) nanosheets were synthesized and demonstrated as efficient electrocatalysts for the hydrogen evolution reaction (HER). The synthesized B, S-Ti3C2Tx exhibited a large surface area and excellent electrocatalytic activity in acidic media, with low overpotential and Tafel slope, as well as maintaining steady catalytic activity over 1000 cycles.
It is crucial to develop a low-cost hybrid electrocatalysts for hydrogen production. Due to their layered structure and strong electrical conductivity, MXene-based materials have been lately used more and more in energy storage devices. Herein, heteroatom- (boron and sulfur-) doped MXene (B, S-Ti3C2Tx) nanosheets are developed as efficient electrocatalysts for the hydrogen evolution reaction (HER). The synthesized B, S-Ti3C2Tx has a large surface area and exhibits excellent electrocatalytic activity in acidic media. The prepared B, S-2-Ti3C2Tx catalyst exhibits a low overpotential of -110 mV vs. reversible hydrogen electrode for the HER and a low Tafel slope of similar to 54 mV dec(-1). Furthermore, B, S-2-Ti3C2Tx shows a double-layer capacitance of 1.05 mF/cm(2) and maintains a steady catalytic activity for the HER for over 1000 cycles.
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