1,721,031 research outputs found

    Nanostructured titania-diphosphonate hybrid materials with a porous hierarchy

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    Abstract not availableXue-Jun Zhang, Tian-Yi Ma, and Zhong-Yong Yua

    Self-supported amorphous-edge nickel sulfide nanobrush for excellent energy storage

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    Abstract not availableXian-Xia Li, Gao-Feng Chen, Kang Xiao, Nan Li, Tian-Yi Ma, Zhao-Qing Li

    ZnCo(2)O(4) quantum dots anchored on nitrogen-doped carbon nanotubes as reversible oxygen reduction/evolution electrocatalysts

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    ZnCo₂O₄ quantum dots anchored on nitrogen-doped carbon nanotubes (N-CNT) retain the high catalytic activity of ZnCo₂O₄ to oxidize water while enabling an efficient oxygen reduction performance thereby combining these desirable features. These advantages realize a bifunctional catalytic activity for ZnCo₂O₄ /N-CNT that can be used in rechargeable zinc-air batteries.Zhao-Qing Liu, Hui Cheng, Nan Li, Tian Yi Ma, and Yu-Zhi S

    A porous perchlorate-doped polypyrrole nanocoating on nickel nanotube arrays for stable wide-potential-window supercapacitors

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    A bottom-up synthetic strategy is developed to fabricate a highly porous wave-superposed perchlorate-doped polypyrrole nanocoating on nickel nanotube arrays. The delicate nanostructure and the unique surface chemistry synergistically endow the obtained electrode with revealable pseudocapacitance, large operating potential window, and excellent cycling stability, which are highly promising for both asymmetric and symmetric supercapacitors.Gao-Feng Chen, Xian-Xia Li, Li-Yi Zhang, Nan Li, Tian Yi Ma, Zhao-Qing Li

    Highly dispersed photoactive zinc oxide nanoparticles on mesoporous phosphonated titania hybrid

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    Abstract not availableYun-Pei Zhu, Tian-Yi Ma, Tie-Zhen Ren, Jie Li, Gao-Hui Du, Zhong-Yong Yua

    Ordered mesoporous metal-organic frameworks consisting of metal disulfonates

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    Tian-Yi Ma, Hui Li, Qing-Fang Deng, Lei Liu, Tie-Zhen Ren, and Zhong-Yong Yua

    Titanium phosphonate based metal-organic frameworks with hierarchical porosity for enhanced photocatalytic hydrogen evolution

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    Photocatalytic hydrogen production is crucial for solar-to-chemical conversion process, wherein high-efficiency photocatalysts lie in the heart of this area. A photocatalyst of hierarchically mesoporous titanium phosphonate based metal-organic frameworks, featuring well-structured spheres, a periodic mesostructure, and large secondary mesoporosity, are rationally designed with the complex of polyelectrolyte and cathodic surfactant serving as the template. The well-structured hierarchical porosity and homogeneously incorporated phosphonate groups can favor the mass transfer and strong optical absorption during the photocatalytic reactions. Correspondingly, the titanium phosphonates exhibit significantly improved photocatalytic hydrogen evolution rate along with impressive stability. This work can provide more insights into designing advanced photocatalysts for energy conversion and render a tunable platform in photoelectrochemistry.Hui Li, Ying Sun, Zhong-Yong Yuan, Yun-Pei Zhu and Tian-Yi Ma

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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