Synergistic effects of defects and surface engineering in Ni-Co metal oxides to improve the high performance of Zn-ion hybrid supercapacitors

Xinze Zhang, Muhammad Sufyan Javed, Xiaofeng Zhang, Salamat Ali, Kaiming Han, Awais Ahmad, Iftikhar Hussain, Ammar M. Tighezza, Waqas Ul Arifeen, Weihua Han