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  • Wiley  (145)
  • Chen, Long  (145)
  • Chemistry/Pharmacy  (145)
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  • Wiley  (145)
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  • Chemistry/Pharmacy  (145)
RVK
  • 1
    Online Resource
    Online Resource
    Tuning the Photophysical Properties of Symmetric Squarylium Dyes: Investigation on the Halogen Modulation Effects
    Wiley ; 2019
    In:  Chemistry – A European Journal Vol. 25, No. 2 ( 2019-01-07), p. 469-473
    Details
    In: Chemistry – A European Journal, Wiley, Vol. 25, No. 2 ( 2019-01-07), p. 469-473
    Abstract: A series of symmetric squarylium dyes (SQDPA‐X) with different halogen (X=F, Cl, Br, I) substituents have been developed. The photophysical properties could be facilely tuned by the halogen modulation effects. The strategy of incorporating different halogen substitutions into AIE active luminogens enables a facile approach for exploring new intriguing organic fluorescent dyes.
    Type of Medium: Online Resource
    ISSN: 0947-6539 , 1521-3765
    URL: Issue
    URL: Article
    DOI: 10.1002/chem.v25.2
    DOI: 10.1002/chem.201804393
    RVK:
    VA 1120 ; VA 3507
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 1478547-X
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  • 2
    Online Resource
    Online Resource
    Superhydrophilic 2D Covalent Organic Frameworks as Broadband Absorbers for Efficient Solar Steam Generation
    Wiley ; 2022
    In:  Angewandte Chemie Vol. 134, No. 19 ( 2022-05-02)
    Details
    In: Angewandte Chemie, Wiley, Vol. 134, No. 19 ( 2022-05-02)
    Abstract: The intrinsic hydrophobicity and limited light absorption especially in the near‐infrared (NIR) region of porous organic polymers are two bottlenecks impeding their applications in solar steam generation (SSG). Herein, we develop a 1,4,5,8‐tetrakis(phenylamino)anthracene‐9,10‐dione (TPAD)‐based covalent organic framework (COF) (TPAD‐COF) featuring both superhydrophilicity and broad light absorption covering from the entire UV/Vis to NIR regions for SSG. TPAD‐COF serving as a highly efficient photothermal conversion material without any additives displays an excellent water evaporation of 1.42 kg m −2  h −1 and achieves a high energy conversion efficiency of 94 % under 1 sun irradiation. Further extension of the light absorption range of the TPAD‐based COF is realized through post‐synthetic modification by chelating BF 2 moieties. Systematic control experiments and analysis confirm that the hydrophilicity of photothermal conversion materials plays a more dominant role in the current TPAD‐based COFs for SSG.
    Type of Medium: Online Resource
    ISSN: 0044-8249 , 1521-3757
    URL: Issue
    URL: Article
    DOI: 10.1002/ange.v134.19
    DOI: 10.1002/ange.202201900
    RVK:
    VA 2100
    RVK:
    VN 5020
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 505868-5
    detail.hit.zdb_id: 506609-8
    detail.hit.zdb_id: 514305-6
    detail.hit.zdb_id: 505872-7
    detail.hit.zdb_id: 1479266-7
    detail.hit.zdb_id: 505867-3
    detail.hit.zdb_id: 506259-7
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Covalent Organic Frameworks Containing Dual O 2 Reduction Centers for Overall Photosynthetic Hydrogen Peroxide Production
    Wiley ; 2023
    In:  Angewandte Chemie Vol. 135, No. 9 ( 2023-02-20)
    Details
    In: Angewandte Chemie, Wiley, Vol. 135, No. 9 ( 2023-02-20)
    Abstract: Covalent organic frameworks (COFs) are highly desirable for achieving high‐efficiency overall photosynthesis of hydrogen peroxide (H 2 O 2 ) via molecular design. However, precise construction of COFs toward overall photosynthetic H 2 O 2 remains a great challenge. Herein, we report the crystalline s ‐heptazine‐based COFs (HEP‐TAPT‐COF and HEP‐TAPB‐COF) with separated redox centers for efficient H 2 O 2 production from O 2 and pure water. The spatially and orderly separated active sites in HEP‐COFs can efficiently promote charge separation and enhance photocatalytic H 2 O 2 production. Compared with HEP‐TAPB‐COF, HEP‐TAPT‐COF exhibits higher H 2 O 2 production efficiency for integrating dual O 2 reduction active centers of s ‐heptazine and triazine moieties. Accordingly, HEP‐TAPT‐COF bearing dual O 2 reduction centers exhibits a remarkable solar‐to‐chemical energy efficiency of 0.65 % with a high apparent quantum efficiency of 15.35 % at 420 nm, surpassing previously reported COF‐based photocatalysts.
    Type of Medium: Online Resource
    ISSN: 0044-8249 , 1521-3757
    URL: Issue
    URL: Article
    DOI: 10.1002/ange.v135.9
    DOI: 10.1002/ange.202217479
    RVK:
    VA 2100
    RVK:
    VN 5020
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 505868-5
    detail.hit.zdb_id: 506609-8
    detail.hit.zdb_id: 514305-6
    detail.hit.zdb_id: 505872-7
    detail.hit.zdb_id: 1479266-7
    detail.hit.zdb_id: 505867-3
    detail.hit.zdb_id: 506259-7
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  • 4
    Online Resource
    Online Resource
    Superhydrophilic 2D Covalent Organic Frameworks as Broadband Absorbers for Efficient Solar Steam Generation
    Wiley ; 2022
    In:  Angewandte Chemie International Edition Vol. 61, No. 19 ( 2022-05-02)
    Details
    In: Angewandte Chemie International Edition, Wiley, Vol. 61, No. 19 ( 2022-05-02)
    Abstract: The intrinsic hydrophobicity and limited light absorption especially in the near‐infrared (NIR) region of porous organic polymers are two bottlenecks impeding their applications in solar steam generation (SSG). Herein, we develop a 1,4,5,8‐tetrakis(phenylamino)anthracene‐9,10‐dione (TPAD)‐based covalent organic framework (COF) (TPAD‐COF) featuring both superhydrophilicity and broad light absorption covering from the entire UV/Vis to NIR regions for SSG. TPAD‐COF serving as a highly efficient photothermal conversion material without any additives displays an excellent water evaporation of 1.42 kg m −2  h −1 and achieves a high energy conversion efficiency of 94 % under 1 sun irradiation. Further extension of the light absorption range of the TPAD‐based COF is realized through post‐synthetic modification by chelating BF 2 moieties. Systematic control experiments and analysis confirm that the hydrophilicity of photothermal conversion materials plays a more dominant role in the current TPAD‐based COFs for SSG.
    Type of Medium: Online Resource
    ISSN: 1433-7851 , 1521-3773
    URL: Issue
    URL: Article
    DOI: 10.1002/anie.v61.19
    DOI: 10.1002/anie.202201900
    RVK:
    VA 2100
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2011836-3
    detail.hit.zdb_id: 123227-7
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    Online Resource
  • 5
    Online Resource
    Online Resource
    Covalent Organic Frameworks Containing Dual O 2 Reduction Centers for Overall Photosynthetic Hydrogen Peroxide Production
    Wiley ; 2023
    In:  Angewandte Chemie International Edition Vol. 62, No. 9 ( 2023-02-20)
    Details
    In: Angewandte Chemie International Edition, Wiley, Vol. 62, No. 9 ( 2023-02-20)
    Abstract: Covalent organic frameworks (COFs) are highly desirable for achieving high‐efficiency overall photosynthesis of hydrogen peroxide (H 2 O 2 ) via molecular design. However, precise construction of COFs toward overall photosynthetic H 2 O 2 remains a great challenge. Herein, we report the crystalline s ‐heptazine‐based COFs (HEP‐TAPT‐COF and HEP‐TAPB‐COF) with separated redox centers for efficient H 2 O 2 production from O 2 and pure water. The spatially and orderly separated active sites in HEP‐COFs can efficiently promote charge separation and enhance photocatalytic H 2 O 2 production. Compared with HEP‐TAPB‐COF, HEP‐TAPT‐COF exhibits higher H 2 O 2 production efficiency for integrating dual O 2 reduction active centers of s ‐heptazine and triazine moieties. Accordingly, HEP‐TAPT‐COF bearing dual O 2 reduction centers exhibits a remarkable solar‐to‐chemical energy efficiency of 0.65 % with a high apparent quantum efficiency of 15.35 % at 420 nm, surpassing previously reported COF‐based photocatalysts.
    Type of Medium: Online Resource
    ISSN: 1433-7851 , 1521-3773
    URL: Issue
    URL: Article
    DOI: 10.1002/anie.v62.9
    DOI: 10.1002/anie.202217479
    RVK:
    VA 2100
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2011836-3
    detail.hit.zdb_id: 123227-7
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    Online Resource
  • 6
    Online Resource
    Online Resource
    Hybrid Acid/alkali All Covalent Organic Frameworks Battery
    Wiley ; 2023
    In:  Angewandte Chemie Vol. 135, No. 18 ( 2023-04-24)
    Details
    In: Angewandte Chemie, Wiley, Vol. 135, No. 18 ( 2023-04-24)
    Abstract: Covalent organic frameworks (COFs), thanks to their adjustable porous structure and abundant build‐in functional motifs, have been recently regarded as promising electrode materials for a variety of batteries. There still remain grand opportunities to further utilizing their merits for developing advanced COFs‐based batteries. In this paper, we propose a hybrid acid/alkali all‐COFs battery by coupling pyrene‐4,5,9,10‐tetraone based COF cathode with anthraquinone based COF anode. In such a hybrid acid/alkali all‐COFs battery, the cathodic COF favorably works in acid with a relatively positive potential, while the anodic COF preferably runs in alkali with a relatively negative potential. It thus can deliver a decently high discharge capacity of 92.97 mAh g −1 with a wide voltage window of 2.0 V, and exhibit high energy density of 74.2 Wh kg −1 along with a considerable cyclic stability over 300 cycles. The development of the proof‐of‐concept all‐COFs battery may drive forward the improvement of newly cost‐effective and performance‐reliable energy storage devices.
    Type of Medium: Online Resource
    ISSN: 0044-8249 , 1521-3757
    URL: Issue
    URL: Article
    DOI: 10.1002/ange.v135.18
    DOI: 10.1002/ange.202215584
    RVK:
    VA 2100
    RVK:
    VN 5020
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 505868-5
    detail.hit.zdb_id: 506609-8
    detail.hit.zdb_id: 514305-6
    detail.hit.zdb_id: 505872-7
    detail.hit.zdb_id: 1479266-7
    detail.hit.zdb_id: 505867-3
    detail.hit.zdb_id: 506259-7
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  • 7
    Online Resource
    Online Resource
    3D Network Binder via In Situ Cross‐Linking on Silicon Anodes with Improved Stability for Lithium‐Ion Batteries
    Wiley ; 2020
    In:  Macromolecular Chemistry and Physics Vol. 221, No. 2 ( 2020-01)
    Details
    In: Macromolecular Chemistry and Physics, Wiley, Vol. 221, No. 2 ( 2020-01)
    Abstract: Silicon (Si) has attracted intensive academic and commercial attention due to its extremely high theoretical capacity. However, it is still far away from practical application because of its fast capacity fading, which is caused by the huge volume change. Here, a novel network polymer binder is synthesized through in situ thermal crosslinking of water‐soluble carboxymethyl cellulose (CMC) and maleic anhydride (MAH). The as‐obtained polymer binder network can effectively restrict the huge volume change of Si anodes upon lithiation. Because of the significantly enhanced structural stability, the Si anodes with network polymer binder deliver enhanced electrochemical performance, with a capacity of 996 mAh g −1 at a high current density of 1 A g −1 after 120 cycles under high mass loading. Most importantly, a high average Coulomb efficiency (CE) of 99.4% is obtained, which is superior over the average CE (98.7%) of Si only using CMC as binder. It is considered that this novel 3D network cross‐linking binder can be used for high‐capacity anode materials in next‐generation Li‐ion batteries.
    Type of Medium: Online Resource
    ISSN: 1022-1352 , 1521-3935
    URL: Issue
    URL: Article
    DOI: 10.1002/macp.v221.2
    DOI: 10.1002/macp.201900414
    RVK:
    VA 5810
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 1475026-0
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  • 8
    Online Resource
    Online Resource
    High‐Voltage Rechargeable Alkali–Acid Zn–PbO 2 Hybrid Battery
    Wiley ; 2020
    In:  Angewandte Chemie International Edition Vol. 59, No. 52 ( 2020-12-21), p. 23593-23597
    Details
    In: Angewandte Chemie International Edition, Wiley, Vol. 59, No. 52 ( 2020-12-21), p. 23593-23597
    Abstract: Aqueous rechargeable batteries have attracted attention owning to their advantages of safety, low cost, and sustainability, while the limited electrochemical stability window (1.23 V) of water leads to their failure in competition with organic‐based lithium‐ion batteries. Herein, we report an alkali–acid Zn–PbO 2 hybrid aqueous battery obtained by coupling an alkaline Zn anode with an acidic PbO 2 cathode. It shows the capability to deliver an impressively high open‐circuit voltage ( V oc ) of 3.09 V and an operate voltage of 2.95 V at 5 mA cm −2 , thanks to the contribution of expanding the voltage window and the electrochemical neutralization energy from the alkali–acid asymmetric‐electrolyte hybrid cell. The hybrid battery can potentially deliver a large area capacity over 2 mAh cm −2 or a high energy density of 252.39 Wh kg −1 and shows almost no fading in area capacity over 250 charge–discharge cycles.
    Type of Medium: Online Resource
    ISSN: 1433-7851 , 1521-3773
    URL: Issue
    URL: Article
    DOI: 10.1002/anie.v59.52
    DOI: 10.1002/anie.202012017
    RVK:
    VA 2100
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2011836-3
    detail.hit.zdb_id: 123227-7
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  • 9
    Online Resource
    Online Resource
    High‐Voltage Rechargeable Alkali–Acid Zn–PbO 2 Hybrid Battery
    Wiley ; 2020
    In:  Angewandte Chemie Vol. 132, No. 52 ( 2020-12-21), p. 23799-23803
    Details
    In: Angewandte Chemie, Wiley, Vol. 132, No. 52 ( 2020-12-21), p. 23799-23803
    Abstract: Aqueous rechargeable batteries have attracted attention owning to their advantages of safety, low cost, and sustainability, while the limited electrochemical stability window (1.23 V) of water leads to their failure in competition with organic‐based lithium‐ion batteries. Herein, we report an alkali–acid Zn–PbO 2 hybrid aqueous battery obtained by coupling an alkaline Zn anode with an acidic PbO 2 cathode. It shows the capability to deliver an impressively high open‐circuit voltage ( V oc ) of 3.09 V and an operate voltage of 2.95 V at 5 mA cm −2 , thanks to the contribution of expanding the voltage window and the electrochemical neutralization energy from the alkali–acid asymmetric‐electrolyte hybrid cell. The hybrid battery can potentially deliver a large area capacity over 2 mAh cm −2 or a high energy density of 252.39 Wh kg −1 and shows almost no fading in area capacity over 250 charge–discharge cycles.
    Type of Medium: Online Resource
    ISSN: 0044-8249 , 1521-3757
    URL: Issue
    URL: Article
    DOI: 10.1002/ange.v132.52
    DOI: 10.1002/ange.202012017
    RVK:
    VA 2100
    RVK:
    VN 5020
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 505868-5
    detail.hit.zdb_id: 506609-8
    detail.hit.zdb_id: 514305-6
    detail.hit.zdb_id: 505872-7
    detail.hit.zdb_id: 1479266-7
    detail.hit.zdb_id: 505867-3
    detail.hit.zdb_id: 506259-7
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  • 10
    Online Resource
    Online Resource
    Deuterated Covalent Organic Frameworks with Significantly Enhanced Luminescence
    Wiley ; 2021
    In:  Angewandte Chemie Vol. 133, No. 39 ( 2021-09-20), p. 21420-21425
    Details
    In: Angewandte Chemie, Wiley, Vol. 133, No. 39 ( 2021-09-20), p. 21420-21425
    Abstract: Luminescent covalent organic frameworks (COFs) find promising applications in chemical sensing, photocatalysis, and optoelectronic devices, however, the majority of COFs are non or weakly emissive owing to the aggregation‐caused quenching (ACQ) or the molecular thermal motion‐based energy dissipation. Here, we report a previously unperceived approach to improve luminescence performance of COFs by introducing isotope effect, which is achieved through substitution of hydrogen from high‐frequency oscillators X‐H (X=O, N, C) by heavier isotope deuterium. Combining the “bottom‐up” and in situ deuteration methods generates the first deuterated COF, which exhibits an impressively 19‐fold enhancement in quantum yield over that of the non‐deuterated counterpart. These results are interpreted by theoretical calculations as the consequence of slower C/N‐D and OD⋅⋅⋅O vibrations that impede the nonradiative deactivation process. The proposed strategy is proved applicable to many other types of emissive COFs.
    Type of Medium: Online Resource
    ISSN: 0044-8249 , 1521-3757
    URL: Issue
    URL: Article
    DOI: 10.1002/ange.v133.39
    DOI: 10.1002/ange.202108650
    RVK:
    VA 2100
    RVK:
    VN 5020
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 505868-5
    detail.hit.zdb_id: 506609-8
    detail.hit.zdb_id: 514305-6
    detail.hit.zdb_id: 505872-7
    detail.hit.zdb_id: 1479266-7
    detail.hit.zdb_id: 505867-3
    detail.hit.zdb_id: 506259-7
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