Journal
NANOTECHNOLOGY
Volume 31, Issue 20, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/ab70ff
Keywords
electrospinning; SrTiO3@MoS2; heterostructure; electrocatalysts; HER
Funding
- National Natural Science Foundation of China [21872119]
- Talent Engineering Training Funding Project of Hebei Province [A201905004]
- Research Program of the College Science and Technology of Hebei Province [ZD2018091]
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The construction of low-cost, high-performance electrocatalysts instead of platinum catalysts is critical to solving the energy crisis. Here, using simple electrospinning and hydrothermal methods, new MoS2 nanosheets on SrTiO3 nanofibers (NFs) and 2D SrTiO3@MoS2 heterostructure NFs are synthesized. In addition, SrTiO3@MoS2 heterostructure NFs are compared with bare SrTiO3 NFs and MoS2 nanosheets. Importantly, the prepared SrTiO3@MoS2 heterostructure shows better hydrogen-evolution reaction performance than other MoS2-based electrocatalysts with an overpotential of 165 mV at 10 mA cm(-2), a Tafel slope of 81.41 mV dec(-1), and long-term electrochemical durability of 3000 cycles. Therefore, the present work strongly demonstrates the positive synergy between SrTiO3 NFs and layered MoS2, and also provides a strategy for preparing low-cost and high-activity water-decomposition electrocatalysts.
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