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学者姓名：黄瀚林
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Abstract ：
Light-to-heat conversion represents one of the most promising pathways to utilize full-spectrum solar energy. The key for boosting the photothermal conversion in semiconductor-based light absorbers relies on narrowing the bandgap for harvesting wide-range sunlight and localizing thermal energy via decreasing heat loss. Here, we demonstrate the first example of using a halide perovskite, Cs4CuSb2Cl12, as the photothermal material for efficient solar-to-heat conversion, with an intrinsic narrow bandgap and ultralow thermal conductivity. Full-spectrum (200-2500 nm) absorption and solar-thermal conversion efficiency up to 93.4% are achieved. The photothermal property enables a low-temperature and rapid hydrogen production from ammonia borane, with 2.0 equiv of hydrogen released, and a photothermal activation efficiency of 12.2% is realized, without any extra energy input. This high photothermal performance not only provides a potential for an energy-efficient on-board hydrogen supply for fuel cells but also opens up a new field for halide perovskites utilized as photothermal convertors.
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| GB/T 7714 | Wang, Yutian , Ji, Yuanxin , Yang, Yalin et al. Narrow-Bandgap Halide Perovskite Cs4CuSb2Cl12 with Full-Spectrum Photothermal Conversion [J]. | ACS ENERGY LETTERS , 2024 , 9 (1) : 336-345 . |
| MLA | Wang, Yutian et al. "Narrow-Bandgap Halide Perovskite Cs4CuSb2Cl12 with Full-Spectrum Photothermal Conversion" . | ACS ENERGY LETTERS 9 . 1 (2024) : 336-345 . |
| APA | Wang, Yutian , Ji, Yuanxin , Yang, Yalin , Chen, Zheyan , Sun, Hao , Wang, Xuejiao et al. Narrow-Bandgap Halide Perovskite Cs4CuSb2Cl12 with Full-Spectrum Photothermal Conversion . | ACS ENERGY LETTERS , 2024 , 9 (1) , 336-345 . |
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Halide perovskites and derivatives have been used as emerging photocatalysts due to their unique optoelectronic and structural diversity. However, compared with the well-explored photophysical processes for light-driven more energetic carriers to trigger redox reactions, catalytic effects on the surface of halide perovskite or their derivatives for chemical transformations between reactive species are seldom addressed, which is equally important for improving the efficiency for halide perovskite-based photocatalysts. Here, we demonstrate that Cs3Bi2Br9 sites in the Cs3Bi2Br9/CdS heterojunction, not only participate in light-driven processes, but also play a vital role for the activation and conversion of key intermediates during C(sp3)-H bond transformation, via a more thermodynamically and kinetically favorable surface reaction pathway. Besides, various aromatic hydrocarbons can be effectively photocatalytic converted to corresponding aldehydes/ketones as major products. This work highlights the importance of surface catalysis mechanism in photocatalysis not only for halide perovskites but also for other semiconductors.
Keyword ：
C-H conversion C-H conversion Heterojunction Heterojunction Perovskite Perovskite Photocatalysis Photocatalysis Surface activation Surface activation
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| GB/T 7714 | Yang, Yalin , Chen, Zheyan , Huang, Hanlin et al. Synergistic surface activation during photocatalysis on perovskite derivative sites in heterojunction [J]. | APPLIED CATALYSIS B-ENVIRONMENTAL , 2023 , 323 . |
| MLA | Yang, Yalin et al. "Synergistic surface activation during photocatalysis on perovskite derivative sites in heterojunction" . | APPLIED CATALYSIS B-ENVIRONMENTAL 323 (2023) . |
| APA | Yang, Yalin , Chen, Zheyan , Huang, Hanlin , Liu, Yuxin , Zou, Junhua , Shen, Shuqi et al. Synergistic surface activation during photocatalysis on perovskite derivative sites in heterojunction . | APPLIED CATALYSIS B-ENVIRONMENTAL , 2023 , 323 . |
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本发明提供了一种有机无机杂化零维金属卤化物钙钛矿发光化合物、制备方法及应用。该化合物化学式为A4InnSb1‑nX7、A’6InnSb1‑nX9或A”2InnSb1‑nX5，A＝CH3NH3+或CH3CH2NH3+，A’＝C6H5NH3+或C6H5CH2NH3+，A”＝C4H12N+或C8H20N+，X＝Cl，Br或I，其中0≤n≤1。该化合物具有零维的卤化物钙钛矿晶体结构，晶体结构单元由孤立的金属卤化物多面体和有机胺阳离子组成。该化合物采用有机胺盐、金属卤化物无机盐为原料，然后通过反溶剂扩散的方法制备。该化合物在可见光范围内具有宽光谱发射、高荧光量子效率、暖黄光色温以及高化学稳定性，可应用于固相发光、照明、显示以及X‑射线闪烁体。
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| GB/T 7714 | 黄瀚林 , 乔硕彦 , 于岩 . 有机无机杂化金属卤化物钙钛矿化合物、制备方法及应用 : CN202210448025.2[P]. | 2022-04-26 00:00:00 . |
| MLA | 黄瀚林 et al. "有机无机杂化金属卤化物钙钛矿化合物、制备方法及应用" : CN202210448025.2. | 2022-04-26 00:00:00 . |
| APA | 黄瀚林 , 乔硕彦 , 于岩 . 有机无机杂化金属卤化物钙钛矿化合物、制备方法及应用 : CN202210448025.2. | 2022-04-26 00:00:00 . |
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Broadband emissive perovskites are next-generation materials for solid-state lighting and radiative detection. However, white-emitting perovskites are generally synthesized by regulating B/X sites, while not enough attention is paid to the A-site, which is thought to hardly affect the band-edge structures and optoelectronic properties. Here, a series of Sb3+-doped In-based 0D halide perovskite derivatives are described with various organoammonium cations in A-sites. Warm-white light emitting across the visible spectrum (450-850 nm), large Stokes shifts, and high photoluminescence quantum yields are easily tunable by molecularly tailoring A-site cations. These features enable a light yield up to 60976 Photons/MeV as X-ray scintillator, and a detection limit of 90 nGyair/s that is approximate to 60 times lower than the medical requirement. It is proved that A-site plays a critical role in determining the degree of distortion of polyhedra, which influences the broadband photoluminescence and self-trapped exciton (STE) dominates the emission process. Moreover, for the first time, via the incorporation of 2,6-dimethylpiperazine, a mixed A-site regulating strategy produces a standard white-light emission, which originates from the blue-light and yellow-light related to various STE emission centers. It is foreseen that this strategy highlights the expanded role of A-site and the importance of rethinking A-sites in perovskites. Efficient and tunable broadband warm-white emission is achieved by engineering the A-site organoammonium cations in Sb-doped In-based 0D perovskite derivatives, with visible light emitting, large Stokes shift, high photoluminescence yield, and X-ray scintillation. For the first time, a standard white-light emission is realized by a mixed A-site regulation strategy by the incorporation of another functional organic amine cation.image
Keyword ：
A-site A-site broadband photoluminescence broadband photoluminescence halide perovskites halide perovskites white-light emission white-light emission X-ray scintillator X-ray scintillator
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| GB/T 7714 | Huang, Hanlin , Yang, Yalin , Qiao, Shuoyan et al. Accommodative Organoammonium Cations in A-Sites of Sb―In Halide Perovskite Derivatives for Tailoring BroadBand Photoluminescence with X-Ray Scintillation and White-Light Emission [J]. | ADVANCED FUNCTIONAL MATERIALS , 2023 , 34 (8) . |
| MLA | Huang, Hanlin et al. "Accommodative Organoammonium Cations in A-Sites of Sb―In Halide Perovskite Derivatives for Tailoring BroadBand Photoluminescence with X-Ray Scintillation and White-Light Emission" . | ADVANCED FUNCTIONAL MATERIALS 34 . 8 (2023) . |
| APA | Huang, Hanlin , Yang, Yalin , Qiao, Shuoyan , Wu, Xiaodong , Chen, Zheyan , Chao, Yu et al. Accommodative Organoammonium Cations in A-Sites of Sb―In Halide Perovskite Derivatives for Tailoring BroadBand Photoluminescence with X-Ray Scintillation and White-Light Emission . | ADVANCED FUNCTIONAL MATERIALS , 2023 , 34 (8) . |
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The preparation of 3D functional isolated mesoscopic assemblies remains a challenge in the self-assembly of polymers. Here, well-defined 3D hexagonal and hexagram prisms with uniform dimensions are acquired by the crystallization of the inclusion complex composed of a crystalline molecule tris-o-phenylenedioxycyclotriphosphazene (TPP) and a block copolymer. The crystalline TPP plays an important role in the self-assembling process. The faceted morphologies of the hexagonal and hexagram prisms are infrequent in the self-assembly field of soft materials. The formation of the prisms experiences a 3D growth mechanism. The epitaxial growth, accompanied by the heterogeneous nucleation in the edges, yields the growth of inclusion crystals. This study provides a path to construct well-defined polymeric soft materials with broad utility based on numerous supramolecular complexes.
Keyword ：
assembly assembly block copolymers block copolymers crystal growth crystal growth self‐ self‐ supramolecular chemistry supramolecular chemistry
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| GB/T 7714 | Lyu, Xiaolin , Huang, Hanlin , Tang, Zhehao et al. Efficient Access to 3D Mesoscopic Prisms in Polymeric Soft Materials [J]. | MACROMOLECULAR RAPID COMMUNICATIONS , 2021 , 42 (11) . |
| MLA | Lyu, Xiaolin et al. "Efficient Access to 3D Mesoscopic Prisms in Polymeric Soft Materials" . | MACROMOLECULAR RAPID COMMUNICATIONS 42 . 11 (2021) . |
| APA | Lyu, Xiaolin , Huang, Hanlin , Tang, Zhehao , Luo, Longfei , Luo, Wenjun , Yu, Yan et al. Efficient Access to 3D Mesoscopic Prisms in Polymeric Soft Materials . | MACROMOLECULAR RAPID COMMUNICATIONS , 2021 , 42 (11) . |
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Yolk-shell composites offer a promising platform for integrating cores into hollow shells to create unique structures and properties. However, the concomitant functionality and tunability of yolk-shell nanocomposites is still a great challenge but highly desirable. Herein, we demonstrate a rational design for the fabrication of yolk-shell-structured covalent organic framework (COF)@metal-organic framework (MOF) (YS-COF@MOF) nanocomposites with COF as the external shell and MOF as the inner yolk. Series of the YS-COF@MOF composites with different MOF cores and COF shells were readily synthesized via a template-free solvothermal method. Control experiments showed that the formation of the hollow cavity between the core and the shell originated from the amorphous-to-crystalline transformation and the simultaneous shrinkage of the shell under the pyrrolidine-catalyzed conditions. The resultant YS-COF@MOF merges the inherent structure tunability and functionality of both COFs and MOFs. The functions of YS-COF@MOF can be regulated and optimized by judicious selections of metal ions and organic building blocks. Representative YS-TpPa@UiO-66-(COOH)(2) with spatially distributed acidic and basic sites exhibited synergistically enhanced catalytic activity in one-pot deacetalization-Knoevenagel cascade reactions.
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| GB/T 7714 | Dang, Qiang , Huang, Hanlin , Li, Liuyi et al. Yolk-Shell-Structured Covalent Organic Frameworks with Encapsulated Metal-Organic Frameworks for Synergistic Catalysis [J]. | CHEMISTRY OF MATERIALS , 2021 , 33 (14) : 5690-5699 . |
| MLA | Dang, Qiang et al. "Yolk-Shell-Structured Covalent Organic Frameworks with Encapsulated Metal-Organic Frameworks for Synergistic Catalysis" . | CHEMISTRY OF MATERIALS 33 . 14 (2021) : 5690-5699 . |
| APA | Dang, Qiang , Huang, Hanlin , Li, Liuyi , Lyu, Xiaolin , Zhong, Shenghong , Yu, Yan et al. Yolk-Shell-Structured Covalent Organic Frameworks with Encapsulated Metal-Organic Frameworks for Synergistic Catalysis . | CHEMISTRY OF MATERIALS , 2021 , 33 (14) , 5690-5699 . |
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