Pseudocapacitive Co9S8/graphene electrode for high-rate hybrid supercapacitors

Preparation and electrochemical hydrogen storage properties of Co 9 S 8 alloy coated with cobalt/graphene composite

“…Similar conclusions for cobalt/graphene nanocomposites have also been confirmed in lithium-ion batteries, supercapacitors and other energy storage materials. 19,39,41 As a result, the discharge capabilities of the alloys were further improved after CoRGO loading. In addition, the largest C max was achieved after loading CoRGO with appropriate amount (6 wt%).…”

“…18 Among various types of Co-S alloys with different stoichiometric compositions, due to the metallic behavior and essentially mixed valence, Co 9 S 8 has been widely concerned in the field of energy storage, including electrochemical hydrogen storage, supercapacitors, electrocatalyst and lithium batteries. [19][20][21] Furthermore, great efforts have been conducted to satisfy the requirement of power battery. Ball-milling treatment, surface treatment, additives have been confirmed to be useful in improving the electrochemical performance of Co-based alloys.…”

Effect of activation ratio on the characteristics of AC derived from anaerobic digester residue and its applications in supercapacitors

“…7d), which demonstrated that the diffusion process was highly restricted, particularly at a high scan rate. 28…”

Ultra-thin NiS nanosheets as advanced electrode for high energy density supercapacitors

“…Ni 3 S 2 , NiS, Co 9 S 8 , NiCo 2 O 4 and NiCo 2 S 4 have received substantial attention for their good capacitance performance, various oxidation states and abundant raw materials. [8][9][10][11][12][13][14] Compared to many oxides, NiS and Ni 3 S 2 have higher conductivity and richer redox reactions. 10,14 To the best of our knowledge, many researches on high performance electrodes are mainly focused on Ni 3 S 2 , and a good capacitance performance of 2885 F g À1 has been received.…”