Surface-Charge-Mediated Formation of H-TiO<sub>2</sub> @Ni(OH)<sub>2</sub> Heterostructures for High-Performance Supercapacitors.
basic_science · Level V
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- Record sourced from PubMed, PMID 27885732.
- Also identified by DOI 10.1002/adma.201604164.
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Abstract
An electrochemically favorable Ni(OH)<sub>2</sub> with porously hierarchical structure and ultrathin nanosheets in a core-shell structure H-TiO<sub>2</sub> @Ni(OH)<sub>2</sub> is achieved through modulating the surface chemical activity of TiO<sub>2</sub> by hydrogenation, which creates a defect-rich surface of TiO<sub>2</sub> , thereby facilitating the subsequent nucleation and growth of Ni(OH)<sub>2</sub> . These configuration-tailored H-TiO<sub>2</sub> @Ni(OH)<sub>2</sub> core-shell nanowires exhibit a superior electrochemical performance and good flexibility.