Department of Chemical Engineering, Stanford University , Stanford, California 94305, United States.
Nano Lett. 2011 Oct 12;11(10):4168-75. doi: 10.1021/nl2020476. Epub 2011 Sep 14.
We synthesize vertically oriented core-shell nanowires with substoichiometric MoO(3) cores of ∼20-50 nm and conformal MoS(2) shells of ∼2-5 nm. The core-shell architecture, produced by low-temperature sulfidization, is designed to utilize the best properties of each component material while mitigating their deficiencies. The substoichiometric MoO(3) core provides a high aspect ratio foundation and enables facile charge transport, while the conformal MoS(2) shell provides excellent catalytic activity and protection against corrosion in strong acids.
我们合成了具有亚化学计量 MoO(3)核（约 20-50nm）和 2-5nm 厚 MoS(2)壳的垂直取向核壳纳米线。这种通过低温硫化得到的核壳结构旨在利用各组成材料的最佳性能，同时弥补其不足。亚化学计量的 MoO(3)核提供了高纵横比的基础，有利于电荷传输，而共形的 MoS(2)壳则提供了极好的催化活性和在强酸中抗腐蚀的能力。
