Negative Electrocatalytic Effects of p-Doping Niobium and Tantalum on MoS2 and WS2 for the Hydrogen Evolution Reaction and Oxygen Reduction Reaction Xing Juan Chua, Jan Luxa, Alex Yong Sheng Eng, Shu Min Tan, Zdeněk Sofer, Martin Pumera* ACS Catalysis 2016, 6(9), 5724-5734
