The Experts below are selected from a list of 33 Experts worldwide ranked by ideXlab platform
Kenichi Akiba - One of the best experts on this subject based on the ideXlab platform.
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selective transport of platinum iv from a palladium ii mixture across a liquid membrane impregnated with an 8 Quinolinol Derivative
Journal of Membrane Science, 1995Co-Authors: Jianshun Fu, Shigeto Nakamura, Kenichi AkibaAbstract:Abstract The transport of Pt(IV) and Pd(II) through a supported liquid membrane (SLM) has been investigated by using an alkylated Derivative of 8-Quinolinol, LIX 26, as a mobile carrier. Platinum(IV) and Pd(II) were highly extractable with LIX 26 from the mineral acid solutions of H 2 SO 4 , HNO 3 and HCl. Platinum(IV) was completely stripped by a weakly acidic solution, but Pd(II) entirely retained in the organic phase. In liquid membrane transport, Pt(IV) was completely transported through a LIX 26-SLM from mineral acid solutions into weakly acidic solutions. Palladium(II) was also extracted into the SLM from the HCl feed solution, while only a small portion of Pd(II) was stripped into the product solution. In the cases of H 2 SO 4 and HNO 3 feed solutions, no Pd(II) was stripped into the product solution. The recovery and separation of Pt(VI) from a Pd(II)Pt(IV) solution were accomplished through an SLM impregnated with 15% (v/v) LIX 26 and 10% (v/v) 1-octanol in kerosene from a 1 M H 2 SO 4 or HNO 3 feed solution into a 0.5 M (H,Na) Cl 2 CHCOO product solution, in which Pt(IV) was transported into the product solution while Pd(II) was built up in the LIX 26-SLM.
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carrier mediated transport of platinum iv through a supported liquid membrane impregnating an 8 Quinolinol Derivative
Journal of Membrane Science, 1995Co-Authors: Jianshun Fu, Shigeto Nakamura, Kenichi AkibaAbstract:Abstract The transport behavior of Pt(IV) has been studied through a supported liquid membrane (SLM) containing a long-chain 8-Quinolinol, LIX 26, as a mobile carrier. Platinum(IV) was extracted with LIX 26 from an HCl solution via an anion exchange reaction and stripped from the loaded organic phase by a weakly acidic solution (pH>1). Platinum(IV) was nearly quantitatively transported across an SLM impregnating 15% (v/v) LIX 26 and 10% (v/v) 1-octanol in kerosene from a feed solution of 1–2 M HCl into a weakly acidic product solution. The transport rate of Pt(IV) was related to the distribution ratio on the feed side. Platinum(IV) was efficiently enriched in the product solution with high recovery.
Jianshun Fu - One of the best experts on this subject based on the ideXlab platform.
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selective transport of platinum iv from a palladium ii mixture across a liquid membrane impregnated with an 8 Quinolinol Derivative
Journal of Membrane Science, 1995Co-Authors: Jianshun Fu, Shigeto Nakamura, Kenichi AkibaAbstract:Abstract The transport of Pt(IV) and Pd(II) through a supported liquid membrane (SLM) has been investigated by using an alkylated Derivative of 8-Quinolinol, LIX 26, as a mobile carrier. Platinum(IV) and Pd(II) were highly extractable with LIX 26 from the mineral acid solutions of H 2 SO 4 , HNO 3 and HCl. Platinum(IV) was completely stripped by a weakly acidic solution, but Pd(II) entirely retained in the organic phase. In liquid membrane transport, Pt(IV) was completely transported through a LIX 26-SLM from mineral acid solutions into weakly acidic solutions. Palladium(II) was also extracted into the SLM from the HCl feed solution, while only a small portion of Pd(II) was stripped into the product solution. In the cases of H 2 SO 4 and HNO 3 feed solutions, no Pd(II) was stripped into the product solution. The recovery and separation of Pt(VI) from a Pd(II)Pt(IV) solution were accomplished through an SLM impregnated with 15% (v/v) LIX 26 and 10% (v/v) 1-octanol in kerosene from a 1 M H 2 SO 4 or HNO 3 feed solution into a 0.5 M (H,Na) Cl 2 CHCOO product solution, in which Pt(IV) was transported into the product solution while Pd(II) was built up in the LIX 26-SLM.
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carrier mediated transport of platinum iv through a supported liquid membrane impregnating an 8 Quinolinol Derivative
Journal of Membrane Science, 1995Co-Authors: Jianshun Fu, Shigeto Nakamura, Kenichi AkibaAbstract:Abstract The transport behavior of Pt(IV) has been studied through a supported liquid membrane (SLM) containing a long-chain 8-Quinolinol, LIX 26, as a mobile carrier. Platinum(IV) was extracted with LIX 26 from an HCl solution via an anion exchange reaction and stripped from the loaded organic phase by a weakly acidic solution (pH>1). Platinum(IV) was nearly quantitatively transported across an SLM impregnating 15% (v/v) LIX 26 and 10% (v/v) 1-octanol in kerosene from a feed solution of 1–2 M HCl into a weakly acidic product solution. The transport rate of Pt(IV) was related to the distribution ratio on the feed side. Platinum(IV) was efficiently enriched in the product solution with high recovery.
Shigeto Nakamura - One of the best experts on this subject based on the ideXlab platform.
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selective transport of platinum iv from a palladium ii mixture across a liquid membrane impregnated with an 8 Quinolinol Derivative
Journal of Membrane Science, 1995Co-Authors: Jianshun Fu, Shigeto Nakamura, Kenichi AkibaAbstract:Abstract The transport of Pt(IV) and Pd(II) through a supported liquid membrane (SLM) has been investigated by using an alkylated Derivative of 8-Quinolinol, LIX 26, as a mobile carrier. Platinum(IV) and Pd(II) were highly extractable with LIX 26 from the mineral acid solutions of H 2 SO 4 , HNO 3 and HCl. Platinum(IV) was completely stripped by a weakly acidic solution, but Pd(II) entirely retained in the organic phase. In liquid membrane transport, Pt(IV) was completely transported through a LIX 26-SLM from mineral acid solutions into weakly acidic solutions. Palladium(II) was also extracted into the SLM from the HCl feed solution, while only a small portion of Pd(II) was stripped into the product solution. In the cases of H 2 SO 4 and HNO 3 feed solutions, no Pd(II) was stripped into the product solution. The recovery and separation of Pt(VI) from a Pd(II)Pt(IV) solution were accomplished through an SLM impregnated with 15% (v/v) LIX 26 and 10% (v/v) 1-octanol in kerosene from a 1 M H 2 SO 4 or HNO 3 feed solution into a 0.5 M (H,Na) Cl 2 CHCOO product solution, in which Pt(IV) was transported into the product solution while Pd(II) was built up in the LIX 26-SLM.
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carrier mediated transport of platinum iv through a supported liquid membrane impregnating an 8 Quinolinol Derivative
Journal of Membrane Science, 1995Co-Authors: Jianshun Fu, Shigeto Nakamura, Kenichi AkibaAbstract:Abstract The transport behavior of Pt(IV) has been studied through a supported liquid membrane (SLM) containing a long-chain 8-Quinolinol, LIX 26, as a mobile carrier. Platinum(IV) was extracted with LIX 26 from an HCl solution via an anion exchange reaction and stripped from the loaded organic phase by a weakly acidic solution (pH>1). Platinum(IV) was nearly quantitatively transported across an SLM impregnating 15% (v/v) LIX 26 and 10% (v/v) 1-octanol in kerosene from a feed solution of 1–2 M HCl into a weakly acidic product solution. The transport rate of Pt(IV) was related to the distribution ratio on the feed side. Platinum(IV) was efficiently enriched in the product solution with high recovery.
Chaofan Zhong - One of the best experts on this subject based on the ideXlab platform.
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Effect on photovoltaic performance of D–A–π–A motif polymer dye sensitizers by adopting the complex of metal with diamine as auxiliary electron acceptor
Journal of Materials Science: Materials in Electronics, 2018Co-Authors: Zehua Xu, Shiyu Tang, Kaixuan Wang, Chaofan ZhongAbstract:Donor–acceptor–π bridge–acceptor (D–A–π–A) dyes are promising sensitizers in dye-sensitized solar cells (DSSCs). With the aim to obtain high conversion efficiencies solar cells, three novel D–A–π–A efficient sensitizers coded PIDT–NCo, PIDT–NZn and PIDT–NCd had been synthesized and applied to DSSCs. These sensitizers adopting Co(II), Zn(II) or Cd(II) complexes as auxiliary electron acceptors (A), indacenodithiophene (IDT) Derivatives as electron donor (D) and 8-Quinolinol Derivative as π bridge and acceptor (A). The results of photovoltaic test indicated that the three polymeric metal complex dye sensitizers have relatively higher performance among polymer dye sensitizers, and the device sensitized by PIDT–NCd shows the highest power conversion efficiency of 6.43% under simulate AM 1.5 G solar irradiation. Besides all dyes exhibited excellent thermal stability (Td > 320 °C). The research data have potential values for the development of coordination chemistry and provided a brand new idea to design efficient polymer dyes for DSSCs.
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D-A-π-A dye-sensitizers with Cd (II) or Cu (II) complex as auxiliary electron acceptor
Optical Materials, 2018Co-Authors: Zehua Xu, Shiyu Tang, Kaixuan Wang, Chaofan ZhongAbstract:Abstract In the process of structure modification for dye-sensitizers, D-A-π-A motif sensitizers stood out from various structures of dyes owing to their high efficiencies and long lifetimes. In this work, four novel polymeric metal complex dyes in D-A-π-A pattern (PCZ-QCd, PCZ-QCu, PIDT-QCd and PIDT-QCu), which use Cd (Ⅱ) or Cu (Ⅱ) complexes as auxiliary electron acceptors, indacenodithiophene (IDT) and carbazole (CZ) Derivatives as donors and 8-Quinolinol Derivative as π bridge and acceptors (A) were designed, synthesized and applied to dye-sensitized solar cells (DSSCs). Polymers using different donors and coordination ions are discussed by testing their thermal, optical, electrochemical properties and photovoltaic performance in dye-sensitized solar cells (DSSCs). All polymers show good terminal stability with decomposition temperatures (Td) higher than 300 °C. There is a wide light absorption range in the near ultraviolet and visible region for the polymer (PIDT-QCd) with Cd (Ⅱ) as coordination ion and IDT as donor. As a result, a highest power conversion efficiency of 6.55% was achieved by PIDT-QCd-based DSSC device. This work provides a distinctive perspective for the designing of sensitizers in DSSCs.
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Dye sensitizers of polymer using the complex of Cd (II) or Cu (II) with imidazole as auxiliary electron acceptor for dye-sensitized solar cells
Dyes and Pigments, 2017Co-Authors: Xu Chen, Yanlong Liao, Tianqi Chen, Chaofan ZhongAbstract:Abstract To enhance the absorption intensity and extend the absorption range of dye sensitizers in visible and near infrared region, as well as to promote the photovoltaic performances, four novel D−A−π−A motif dye sensitizers of polymeric metal complex (PFL–BP–Cd, PFL–BP–Cu, PBDTT–BP–Cd and PBDTT–BP–Cu) using the complexes of Cd(II) or Cu(II) with imidazole as auxiliary electron acceptors, thienylbenzo[1,2-b:4,5-b'] dithiophene (BDTT) or fluorine (FL) Derivative as electron donor (D), and 8-Quinolinol Derivative as π bridge and acceptor, have been designed and synthesized firstly. Their thermal, optical, electrochemical properties and photovoltaic performance in dye-sensitized solar cells (DSSCs) were also investigated. The results show that the four dye sensitizers of polymeric metal complex have relatively strong light absorption and high photovoltaic performance among dye sensitizers of polymers. The UV–Visible absorption spectra indicates obvious red-shift of PBDTT−BP−Cd compared with the others, and the device sensitized by PBDTT−BP−Cd exhibited the highest power conversion efficiency (PCE) of 6.13% under the full sunlight (AM 1.5 G, 100 mW cm −2 ) irradiation. In addition, all dyes show outstanding thermal stability(T d > 300 °C). The results reveal a new path to design efficient dyes of polymer for DSSCs.
Zehua Xu - One of the best experts on this subject based on the ideXlab platform.
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Effect on photovoltaic performance of D–A–π–A motif polymer dye sensitizers by adopting the complex of metal with diamine as auxiliary electron acceptor
Journal of Materials Science: Materials in Electronics, 2018Co-Authors: Zehua Xu, Shiyu Tang, Kaixuan Wang, Chaofan ZhongAbstract:Donor–acceptor–π bridge–acceptor (D–A–π–A) dyes are promising sensitizers in dye-sensitized solar cells (DSSCs). With the aim to obtain high conversion efficiencies solar cells, three novel D–A–π–A efficient sensitizers coded PIDT–NCo, PIDT–NZn and PIDT–NCd had been synthesized and applied to DSSCs. These sensitizers adopting Co(II), Zn(II) or Cd(II) complexes as auxiliary electron acceptors (A), indacenodithiophene (IDT) Derivatives as electron donor (D) and 8-Quinolinol Derivative as π bridge and acceptor (A). The results of photovoltaic test indicated that the three polymeric metal complex dye sensitizers have relatively higher performance among polymer dye sensitizers, and the device sensitized by PIDT–NCd shows the highest power conversion efficiency of 6.43% under simulate AM 1.5 G solar irradiation. Besides all dyes exhibited excellent thermal stability (Td > 320 °C). The research data have potential values for the development of coordination chemistry and provided a brand new idea to design efficient polymer dyes for DSSCs.
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D-A-π-A dye-sensitizers with Cd (II) or Cu (II) complex as auxiliary electron acceptor
Optical Materials, 2018Co-Authors: Zehua Xu, Shiyu Tang, Kaixuan Wang, Chaofan ZhongAbstract:Abstract In the process of structure modification for dye-sensitizers, D-A-π-A motif sensitizers stood out from various structures of dyes owing to their high efficiencies and long lifetimes. In this work, four novel polymeric metal complex dyes in D-A-π-A pattern (PCZ-QCd, PCZ-QCu, PIDT-QCd and PIDT-QCu), which use Cd (Ⅱ) or Cu (Ⅱ) complexes as auxiliary electron acceptors, indacenodithiophene (IDT) and carbazole (CZ) Derivatives as donors and 8-Quinolinol Derivative as π bridge and acceptors (A) were designed, synthesized and applied to dye-sensitized solar cells (DSSCs). Polymers using different donors and coordination ions are discussed by testing their thermal, optical, electrochemical properties and photovoltaic performance in dye-sensitized solar cells (DSSCs). All polymers show good terminal stability with decomposition temperatures (Td) higher than 300 °C. There is a wide light absorption range in the near ultraviolet and visible region for the polymer (PIDT-QCd) with Cd (Ⅱ) as coordination ion and IDT as donor. As a result, a highest power conversion efficiency of 6.55% was achieved by PIDT-QCd-based DSSC device. This work provides a distinctive perspective for the designing of sensitizers in DSSCs.
