The Experts below are selected from a list of 178134 Experts worldwide ranked by ideXlab platform
Huakun Liu - One of the best experts on this subject based on the ideXlab platform.
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tin polypyrrole composite anode using sodium carboxymethyl cellulose binder for lithium ion batteries
Dalton Transactions, 2011Co-Authors: Shulei Chou, Xuanwen Gao, Jiazhao Wang, David Wexler, Zhaoxiang Wang, Liquan Chen, Huakun LiuAbstract:A tin nanoparticle/polypyrrole (nano-Sn/PPy) composite was prepared by chemically reducing and coating Sn nanoparticles onto the PPy Surface. The composite shows a much Higher Surface Area than the pure nano-Sn reference sample, due to the porous Higher Surface Area of PPy and the much smaller size of Sn in the nano-Sn/PPy composite than in the pure tin nanoparticle sample. Poly(vinylidene fluoride) (PVDF) and sodium carboxymethyl cellulose (CMC) were also used as binders, and the electrochemical performance was investigated. The electrochemical results show that both the capacity retention and the rate capability are in the same order of nano-Sn/PPy-CMC > nano-Sn/PPy-PVDF > nano-Sn-CMC > nano-Sn-PVDF. Scanning electronic microscopy (SEM) and electrochemical impedance spectroscopy (EIS) results show that CMC can prevent the formation of cracks in electrodes caused by the big volume changes during the charge–discharge process, and the PPy in the composite can provide a conducting matrix and alleviate the agglomeration of Sn nanoparticles. The present results indicate that the nano-Sn/PPy composite could be suitable for the next generation of anode materials with relatively good capacity retention and rate capability.
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Tin/polypyrrole composite anode using sodium carboxymethyl cellulose binder for lithium-ion batteries
Dalton transactions (Cambridge England : 2003), 2011Co-Authors: Shulei Chou, Xuanwen Gao, Jiazhao Wang, David Wexler, Zhaoxiang Wang, Liquan Chen, Huakun LiuAbstract:A tin nanoparticle/polypyrrole (nano-Sn/PPy) composite was prepared by chemically reducing and coating Sn nanoparticles onto the PPy Surface. The composite shows a much Higher Surface Area than the pure nano-Sn reference sample, due to the porous Higher Surface Area of PPy and the much smaller size of Sn in the nano-Sn/PPy composite than in the pure tin nanoparticle sample. Poly(vinylidene fluoride) (PVDF) and sodium carboxymethyl cellulose (CMC) were also used as binders, and the electrochemical performance was investigated. The electrochemical results show that both the capacity retention and the rate capability are in the same order of nano-Sn/PPy-CMC > nano-Sn/PPy-PVDF > nano-Sn-CMC > nano-Sn-PVDF. Scanning electronic microscopy (SEM) and electrochemical impedance spectroscopy (EIS) results show that CMC can prevent the formation of cracks in electrodes caused by the big volume changes during the charge–discharge process, and the PPy in the composite can provide a conducting matrix and alleviate the agglomeration of Sn nanoparticles. The present results indicate that the nano-Sn/PPy composite could be suitable for the next generation of anode materials with relatively good capacity retention and rate capability.
Shulei Chou - One of the best experts on this subject based on the ideXlab platform.
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tin polypyrrole composite anode using sodium carboxymethyl cellulose binder for lithium ion batteries
Dalton Transactions, 2011Co-Authors: Shulei Chou, Xuanwen Gao, Jiazhao Wang, David Wexler, Zhaoxiang Wang, Liquan Chen, Huakun LiuAbstract:A tin nanoparticle/polypyrrole (nano-Sn/PPy) composite was prepared by chemically reducing and coating Sn nanoparticles onto the PPy Surface. The composite shows a much Higher Surface Area than the pure nano-Sn reference sample, due to the porous Higher Surface Area of PPy and the much smaller size of Sn in the nano-Sn/PPy composite than in the pure tin nanoparticle sample. Poly(vinylidene fluoride) (PVDF) and sodium carboxymethyl cellulose (CMC) were also used as binders, and the electrochemical performance was investigated. The electrochemical results show that both the capacity retention and the rate capability are in the same order of nano-Sn/PPy-CMC > nano-Sn/PPy-PVDF > nano-Sn-CMC > nano-Sn-PVDF. Scanning electronic microscopy (SEM) and electrochemical impedance spectroscopy (EIS) results show that CMC can prevent the formation of cracks in electrodes caused by the big volume changes during the charge–discharge process, and the PPy in the composite can provide a conducting matrix and alleviate the agglomeration of Sn nanoparticles. The present results indicate that the nano-Sn/PPy composite could be suitable for the next generation of anode materials with relatively good capacity retention and rate capability.
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Tin/polypyrrole composite anode using sodium carboxymethyl cellulose binder for lithium-ion batteries
Dalton transactions (Cambridge England : 2003), 2011Co-Authors: Shulei Chou, Xuanwen Gao, Jiazhao Wang, David Wexler, Zhaoxiang Wang, Liquan Chen, Huakun LiuAbstract:A tin nanoparticle/polypyrrole (nano-Sn/PPy) composite was prepared by chemically reducing and coating Sn nanoparticles onto the PPy Surface. The composite shows a much Higher Surface Area than the pure nano-Sn reference sample, due to the porous Higher Surface Area of PPy and the much smaller size of Sn in the nano-Sn/PPy composite than in the pure tin nanoparticle sample. Poly(vinylidene fluoride) (PVDF) and sodium carboxymethyl cellulose (CMC) were also used as binders, and the electrochemical performance was investigated. The electrochemical results show that both the capacity retention and the rate capability are in the same order of nano-Sn/PPy-CMC > nano-Sn/PPy-PVDF > nano-Sn-CMC > nano-Sn-PVDF. Scanning electronic microscopy (SEM) and electrochemical impedance spectroscopy (EIS) results show that CMC can prevent the formation of cracks in electrodes caused by the big volume changes during the charge–discharge process, and the PPy in the composite can provide a conducting matrix and alleviate the agglomeration of Sn nanoparticles. The present results indicate that the nano-Sn/PPy composite could be suitable for the next generation of anode materials with relatively good capacity retention and rate capability.
Teruhisa Ohno - One of the best experts on this subject based on the ideXlab platform.
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Synthesis high specific Surface Area nanotube g-C3N4 with two-step condensation treatment of melamine to enhance photocatalysis properties
RSC Advances, 2015Co-Authors: Zhengyuan Jin, Qitao Zhang, Saisai Yuan, Teruhisa OhnoAbstract:High specific Surface Area nanotube g-C3N4 was fabricated by a simple two-step condensation method. Photocatalytic activity was evaluated by decomposition of Rhodamine B (Rh B) under visible light. Nanotube g-C3N4 showed 12 times Higher photocatalytic activity than bulk g-C3N4. The improvement of photocatalytic activity was mainly due to the Higher Surface Area, the unique morphology and the number of defects.
Jiazhao Wang - One of the best experts on this subject based on the ideXlab platform.
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tin polypyrrole composite anode using sodium carboxymethyl cellulose binder for lithium ion batteries
Dalton Transactions, 2011Co-Authors: Shulei Chou, Xuanwen Gao, Jiazhao Wang, David Wexler, Zhaoxiang Wang, Liquan Chen, Huakun LiuAbstract:A tin nanoparticle/polypyrrole (nano-Sn/PPy) composite was prepared by chemically reducing and coating Sn nanoparticles onto the PPy Surface. The composite shows a much Higher Surface Area than the pure nano-Sn reference sample, due to the porous Higher Surface Area of PPy and the much smaller size of Sn in the nano-Sn/PPy composite than in the pure tin nanoparticle sample. Poly(vinylidene fluoride) (PVDF) and sodium carboxymethyl cellulose (CMC) were also used as binders, and the electrochemical performance was investigated. The electrochemical results show that both the capacity retention and the rate capability are in the same order of nano-Sn/PPy-CMC > nano-Sn/PPy-PVDF > nano-Sn-CMC > nano-Sn-PVDF. Scanning electronic microscopy (SEM) and electrochemical impedance spectroscopy (EIS) results show that CMC can prevent the formation of cracks in electrodes caused by the big volume changes during the charge–discharge process, and the PPy in the composite can provide a conducting matrix and alleviate the agglomeration of Sn nanoparticles. The present results indicate that the nano-Sn/PPy composite could be suitable for the next generation of anode materials with relatively good capacity retention and rate capability.
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Tin/polypyrrole composite anode using sodium carboxymethyl cellulose binder for lithium-ion batteries
Dalton transactions (Cambridge England : 2003), 2011Co-Authors: Shulei Chou, Xuanwen Gao, Jiazhao Wang, David Wexler, Zhaoxiang Wang, Liquan Chen, Huakun LiuAbstract:A tin nanoparticle/polypyrrole (nano-Sn/PPy) composite was prepared by chemically reducing and coating Sn nanoparticles onto the PPy Surface. The composite shows a much Higher Surface Area than the pure nano-Sn reference sample, due to the porous Higher Surface Area of PPy and the much smaller size of Sn in the nano-Sn/PPy composite than in the pure tin nanoparticle sample. Poly(vinylidene fluoride) (PVDF) and sodium carboxymethyl cellulose (CMC) were also used as binders, and the electrochemical performance was investigated. The electrochemical results show that both the capacity retention and the rate capability are in the same order of nano-Sn/PPy-CMC > nano-Sn/PPy-PVDF > nano-Sn-CMC > nano-Sn-PVDF. Scanning electronic microscopy (SEM) and electrochemical impedance spectroscopy (EIS) results show that CMC can prevent the formation of cracks in electrodes caused by the big volume changes during the charge–discharge process, and the PPy in the composite can provide a conducting matrix and alleviate the agglomeration of Sn nanoparticles. The present results indicate that the nano-Sn/PPy composite could be suitable for the next generation of anode materials with relatively good capacity retention and rate capability.
Xuanwen Gao - One of the best experts on this subject based on the ideXlab platform.
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tin polypyrrole composite anode using sodium carboxymethyl cellulose binder for lithium ion batteries
Dalton Transactions, 2011Co-Authors: Shulei Chou, Xuanwen Gao, Jiazhao Wang, David Wexler, Zhaoxiang Wang, Liquan Chen, Huakun LiuAbstract:A tin nanoparticle/polypyrrole (nano-Sn/PPy) composite was prepared by chemically reducing and coating Sn nanoparticles onto the PPy Surface. The composite shows a much Higher Surface Area than the pure nano-Sn reference sample, due to the porous Higher Surface Area of PPy and the much smaller size of Sn in the nano-Sn/PPy composite than in the pure tin nanoparticle sample. Poly(vinylidene fluoride) (PVDF) and sodium carboxymethyl cellulose (CMC) were also used as binders, and the electrochemical performance was investigated. The electrochemical results show that both the capacity retention and the rate capability are in the same order of nano-Sn/PPy-CMC > nano-Sn/PPy-PVDF > nano-Sn-CMC > nano-Sn-PVDF. Scanning electronic microscopy (SEM) and electrochemical impedance spectroscopy (EIS) results show that CMC can prevent the formation of cracks in electrodes caused by the big volume changes during the charge–discharge process, and the PPy in the composite can provide a conducting matrix and alleviate the agglomeration of Sn nanoparticles. The present results indicate that the nano-Sn/PPy composite could be suitable for the next generation of anode materials with relatively good capacity retention and rate capability.
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Tin/polypyrrole composite anode using sodium carboxymethyl cellulose binder for lithium-ion batteries
Dalton transactions (Cambridge England : 2003), 2011Co-Authors: Shulei Chou, Xuanwen Gao, Jiazhao Wang, David Wexler, Zhaoxiang Wang, Liquan Chen, Huakun LiuAbstract:A tin nanoparticle/polypyrrole (nano-Sn/PPy) composite was prepared by chemically reducing and coating Sn nanoparticles onto the PPy Surface. The composite shows a much Higher Surface Area than the pure nano-Sn reference sample, due to the porous Higher Surface Area of PPy and the much smaller size of Sn in the nano-Sn/PPy composite than in the pure tin nanoparticle sample. Poly(vinylidene fluoride) (PVDF) and sodium carboxymethyl cellulose (CMC) were also used as binders, and the electrochemical performance was investigated. The electrochemical results show that both the capacity retention and the rate capability are in the same order of nano-Sn/PPy-CMC > nano-Sn/PPy-PVDF > nano-Sn-CMC > nano-Sn-PVDF. Scanning electronic microscopy (SEM) and electrochemical impedance spectroscopy (EIS) results show that CMC can prevent the formation of cracks in electrodes caused by the big volume changes during the charge–discharge process, and the PPy in the composite can provide a conducting matrix and alleviate the agglomeration of Sn nanoparticles. The present results indicate that the nano-Sn/PPy composite could be suitable for the next generation of anode materials with relatively good capacity retention and rate capability.