期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 17, 期 8, 页码 5606-5612出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cp05228e
关键词
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资金
- National Natural Science Foundation of China [21353003]
- Special Innovation Talents of Harbin Science and Technology [2013RFQXJ145]
- Fundamental Research Funds of the Central University (HEUCFZ)
- Key Program of the Natural Science Foundation of Heilongjiang Province [ZD201219]
- Program of International S&T Cooperation special project [2013DFA50480]
Some inorganic quasi-two-dimensional nanomaterials such as cobalt-nickel hydroxides are kinetically facile for a capacitive charge storage process. However, high performance capacitive charge storage needs a balance of the ionic and electronic transporting, and to build up an integrated architecture on substrates step by step and utilize the interface better is still a key challenge. As the interfacial assembly has conflicted with our goals for high-performance capacitive charge storage process, we identify theoretically and experimentally binary cooperative nanoscale interfacial materials to solve the problem. Co-Ni-hydroxide precursors were prepared by hybrid quasi-two-dimensional nanosheets and hetero-oriented nanocrystallines walls. Followed by dip-dry and annealing, NiCo2O4 could adhere to the nickel foams robustly with a solution-based surface treatment. Moreover, an unusual phenomenon in the electrochemical test inspired us to establish a bridge between 'supercapacitor' and 'battery'. The bridged gap highlights a new design idea for high-performance energy storage.
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