%0 Journal Article %A Yuan, Jian %A Wang, Chao %A Liu, Yanyu %A Wu, Ping %A Zhou, Wei %D 2018 %T Tunable Photocatalytic HER Activity of Single-Layered TiO2 Nanosheets with Transition-Metal Doping and Biaxial Strain %U https://acs.figshare.com/articles/journal_contribution/Tunable_Photocatalytic_HER_Activity_of_Single-Layered_TiO_sub_2_sub_Nanosheets_with_Transition-Metal_Doping_and_Biaxial_Strain/7539767 %R 10.1021/acs.jpcc.8b09848.s001 %2 https://acs.figshare.com/ndownloader/files/14016455 %K strain %K single-layered TiO 2 nanosheets %K Tunable Photocatalytic HER Activity %K Single-Layered TiO 2 Nanosheets %K tunable hydrogen adsorption ability %K V-doped LNS-TiO 2 nanosheets %K hydrogen evolution reaction %K Cr-doped LNS-TiO 2 nanosheets %K p z band center level %K 0 eV %K hydrogen adsorption %K O -2p z band center level %X The hydrogen evolution reaction (HER) and electronic properties of single-layered TiO2 nanosheets effectively modulated by transition-metal doping and biaxial strain were investigated in this work. Surprisingly, the hydrogen adsorption free energy of Cr-doped LNS-TiO2 nanosheets was reduced to almost 0 eV, which is comparable to the well-known highly efficient catalyst of Pt metal. The tunable hydrogen adsorption ability was correlated with the O-2pz band center level. Moreover, by upshifting the pz band center level, both the tensile and compressive strains could decrease the hydrogen adsorption free energy of V-doped LNS-TiO2 nanosheets, even close to 0 eV with 7% tensile strain. These insights open a new avenue into realizing high HER activity in oxide nanosheets. %I ACS Publications