title: MOF-Derived Flower-like MoS2@TiO2Nanohybrids with Enhanced Activity for Hydrogen Evolution.
abstract: A simple hydrothermal method is developed for synthesizing crystalline MoS2@TiO2nanohybrids with metal-organic framework (MOF) as precursor. At an optimal ratio of 14.6 wt % MoS2, the resultant material exhibits prominent catalytic activity for hydrogen evolution reaction (HER) with a high hydrogen production rate of 10 046 μmol h-1g-1under visible light illumination with fluorescein as photosensitizer. Furthermore, the synthesized catalyst also possesses an attractive electrocatalytic activity with an onset overpotential of -300 mV (vs RHE) and a Tafel slope of ∼81 mV dec-1. The enhanced catalyst performances are mainly attributed to the in situ formed active sites, featuring a uniform dispersion and strong connection of MoS2and TiO2, which can facilitate electron transfer. In addition, the MoS2@TiO2nanohybrids are highly stable and completely recyclable over HER.
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University , Zhengzhou 450001, People's Republic of China.
authors.forename: Bing
authors.initials: B
authors.lastname: Ma
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University , Zhengzhou 450001, People's Republic of China.
authors.forename: Pei-Yao
authors.initials: PY
authors.lastname: Guan
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University , Zhengzhou 450001, People's Republic of China.
authors.forename: Qiu-Ying
authors.initials: QY
authors.lastname: Li
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University , Zhengzhou 450001, People's Republic of China.
authors.forename: Mei
authors.initials: M
authors.lastname: Zhang
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University , Zhengzhou 450001, People's Republic of China.
authors.forename: Shuang-Quan
authors.initials: SQ
authors.lastname: Zang
keywords: MoS2@TiO2; flower-like nanohybrids; hydrogen evolution reaction; metal−organic frameworks; photo- and electrocatalysis