title: Mesoporous slit-structured NiO for high-performance pseudocapacitors.
abstract: Mesoporous slit-structured NiO materials were prepared through a simple hydrothermal route with sodium dodecyl benzene sulfonate (SDBS) as an additive. The as-prepared NiO samples presented high specific capacitance of over 1700 F g(-1) in the potential range from 0.10 to 0.56 V (vs. Hg/HgO/6 mol L(-1) KOH) at a constant current of 2 A g(-1), and good capacitance retention of ∼90% after 1000 continuous charge-discharge cycles. Only the NiO electrode materials with uniform slit-structured mesopores, which were confirmed through nitrogen adsorption-desorption isotherms and high-resolution transmission electron microscope, delivered excellent capacitances far beyond any previous report up to now. Pore structures (including pore shape, size, and distribution) are dominant factors in pseudocapacitor materials.
authors: Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China.
authors: M
authors: M
authors: Yang
authors: J X
authors: JX
authors: Li
authors: H H
authors: HH
authors: Li
authors: L W
authors: LW
authors: Su
authors: J P
authors: JP
authors: Wei
authors: Z
authors: Z
authors: Zhou