Branched titania nanostructures for efficient energy conversion and storage: A review on design strategies, structural merits and multifunctionalities
Branched titania nanostructures for efficient energy conversion and storage: A review on design strategies, structural merits and multifunctionalities
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DOI：
10.1016/j.nanoen.2019.05.071
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发表时间：
2019-08
期刊：
影响因子：
17.6
通讯作者：
Wu‐Qiang Wu;Yang-Fan Xu;Jin‐Feng Liao;Lianzhou Wang;D. Kuang
中科院分区：
文献类型：
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作者：
Wu‐Qiang Wu;Yang-Fan Xu;Jin‐Feng Liao;Lianzhou Wang;D. Kuang
近年来，由于其在能源相关领域的广泛应用，支化TiO 2纳米结构（BTNs）引起了人们极大的兴趣。作为太阳能电池（染料或量子点敏化太阳能电池和钙钛矿太阳能电池）、光电化学合成电池和能量存储装置（例如，锂离子电池），具有结构层次和多孔性的固有性质的BTN，提供迷人的光学、电学和电化学性质，例如高表面积、上级光散射和限制以及快速电子传输。本文综述了近年来制备具有不同主-客体形貌、支化组成和结构复杂性的BTNs的研究进展。讨论了它们在能量转换和储存领域取得的令人鼓舞的进展。重点介绍了树枝状分枝状TiO 2纳米阵列和海胆状分枝状TiO 2微球这两种典型的分枝状纳米材料，并阐述了智能表面分枝化修饰对提高太阳能-电能或太阳能-燃料转换效率、提高能量（功率）密度的作用。此外，我们还对用于下一代能量转换和存储设备的新型多功能BTN的新趋势和未来方向提供了观点。
Recent years have witnessed an explosive interest in branched TiO2nanostructures (BTNs) due to their promising applications in a wide range of energy-related fields. As anode materials for solar cells (dye- or quantum dot-sensitized solar cells and perovskite solar cells), photoelectrochemical synthetic cells and energy storage devices (e.g., Li-ion batteries), BTNs with inherent nature of structural hierarchy and porosity, provide fascinating optical, electrical and electrochemical properties such as high surface area, superior light scattering and confinement, and fast electron transport. This review summarizes the recent advances in the preparation of BTNs with tailored host-guest morphologies, branches compositions and structural complexity. Their promising progress achieved in the field of energy conversion and storage is discussed. Two blossoming representatives, including the tree-like branched TiO2nanoarrays and urchin-like branched TiO2spheres, are highlighted to shed light on the effect of smart surface branched modification on improving the solar-to-electricity or solar-to-fuel conversion efficiencies, and increasing energy (power) densities. In addition, we also provide perspective on the new trend and future directions of novel multifunctional BTNs for next-generation energy conversion and storage devices.