State Key Laboratory of Biobased Material and Green Papermaking;
Qilu University of Technology;
Shandong Academy of Sciences;
Jinan 250353;
China;
Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion;
School of Chemistry and Chemical Engineering;
Tianjin University of Technology;
Tianjin 300384;
China;
CoSe2; Carbon nanotubes; Ultrathin; Bifunctional electrocatalyst; Water splitting;