title: Controllable Preparation of Square Nickel Chalcogenide (NiS and NiSe2) Nanoplates for Superior Li/Na Ion Storage Properties.
abstract: A facile and bottom-up approach has been presented to prepare 2D Ni-MOFs based on cyanide-bridged hybrid coordination polymers. After thermally induced sulfurization and selenization processes, Ni-MOFs were successfully converted into NiS and NiSe2 nanoplates with carbon coating due to the decomposition of its organic parts. When evaluated as anodes of Li-ion batteries (LIBs) and Na-ion batteries (NIBs), NiS and NiSe2 nanoplates show high specific capacities, excellent rate capabilities, and stable cycling stability. The NiS plates show good Li storage properties, while NiSe2 plates show good Na storage properties as anode materials. The study of the diffusivity of Li(+) in NiS and Na(+) in NiSe2 shows consistent results with their Li/Na storage properties. The 2D MOFs-derived NiS and NiSe2 nanoplates reported in this work explore a new approach for the large-scale synthesis of 2D metal sulfides or selenides with potential applications for advanced energy storage.
authors: School of Materials Science and Engineering, Nanyang Technological University , 639798 Singapore.|Energy Research Institute@NTU, Nanyang Technological University , Research Techno Plaza, 637553 Singapore.
authors: Haosen
authors: H
authors: Fan
authors: School of Materials Science and Engineering, Nanyang Technological University , 639798 Singapore.
authors: Hong
authors: H
authors: Yu
authors: School of Materials Science and Engineering, Nanyang Technological University , 639798 Singapore.
authors: Xinglong
authors: X
authors: Wu
authors: School of Materials Science and Engineering, Nanyang Technological University , 639798 Singapore.
authors: Yu
authors: Y
authors: Zhang
authors: School of Materials Science and Engineering, Nanyang Technological University , 639798 Singapore.
authors: Zhongzhen
authors: Z
authors: Luo
authors: School of Materials Science and Engineering, Nanyang Technological University , 639798 Singapore.|Energy Research Institute@NTU, Nanyang Technological University , Research Techno Plaza, 637553 Singapore.
authors: Huanwen
authors: H
authors: Wang
authors: School of Materials Science and Engineering, Nanyang Technological University , 639798 Singapore.
authors: Yuanyuan
authors: Y
authors: Guo
authors: School of Materials Science and Engineering, Nanyang Technological University , 639798 Singapore.|Energy Research Institute@NTU, Nanyang Technological University , Research Techno Plaza, 637553 Singapore.
authors: Srinivasan
authors: S
authors: Madhavi
authors: School of Materials Science and Engineering, Nanyang Technological University , 639798 Singapore.|Energy Research Institute@NTU, Nanyang Technological University , Research Techno Plaza, 637553 Singapore.
authors: Qingyu
authors: Q
authors: Yan
keywords: 2D MOF; Li-ion batteries; Na-ion batteries; nickel chalcogenides; square nanoplate