Adsorption mechanism of sodium polysulfide clusters on selenium-doped Ti2CO2 MXenes for application in sodium-sulfur batteries - To, Trong Mai; Nguyen, Truong Long; Duong, Trong Nhan; Nguyen Thi, Bao Trang; Pham Vu, Nhat; Nguyen, Duy Khanh; Dang, Minh Triet (VNUHCM Journal of Engineering and Technology, 2026)