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学者姓名：罗中箴
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Abstract ：
In this work, cation vacancies induced the tetrahedral distortion, enhancing the second harmonic generation (SHG) response in the diamond-like (DL) structure compounds. Concretely, the high valence and electronegativity of P5+ were introduced to substitute the Ge4+ in Cd4GeS6, which shows a general SHG response of 1.1 x AgGaS2 (AGS) at 2050 nm. Thus, the isomorphic defective DL Cd3.5PS6 was obtained with inherent Cd2+ vacancies, leading to an 8.5-fold increase in [CdS4] tetrahedral distortion degree than Cd4GeS6. As a result, Cd3.5PS6 has a high SHG response of 2 x AGS at 2050 nm and a laser-induced damage threshold (LIDT) of 9.4 x AGS. Furthermore, equivalent Hg2+ substitution concentrates Cd2+ vacancies at the Cd(2) site, leading to a 2.66-fold [CdS4] tetrahedral distortion degree than Cd3.5PS6. Consequently, Hg0.5Cd3PS6 possesses a high SHG response of 2.73 x AGS at 2050 nm and LIDT of 5 x AGS with a birefringence of 0.076@2050 nm. The results indicate that the cation vacancies and radius scale of mixed atoms provide effective ways to design high-performance nonlinear optical crystals.
Keyword ：
cation vacancies cation vacancies diamond-like structure diamond-like structure distortion degree distortion degree mid-infrared nonlinear optical mid-infrared nonlinear optical polarizability polarizability
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| GB/T 7714 | Guo, Weiping , Zhang, Yongjia , Cui, Hong-Hua et al. Vacancy-driven tetrahedral distortion leading to exceptional second harmonic generation [J]. | SCIENCE CHINA-MATERIALS , 2025 . |
| MLA | Guo, Weiping et al. "Vacancy-driven tetrahedral distortion leading to exceptional second harmonic generation" . | SCIENCE CHINA-MATERIALS (2025) . |
| APA | Guo, Weiping , Zhang, Yongjia , Cui, Hong-Hua , Li, Xin-Xiong , Li, Lingyun , Yu, Yan et al. Vacancy-driven tetrahedral distortion leading to exceptional second harmonic generation . | SCIENCE CHINA-MATERIALS , 2025 . |
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PbSe is considered a candidate for Te-free thermoelectric materials with the same crystal structure and similar band structure as PbTe. Cu is predicted to introduce impurity energy levels near the valence band of PbSe and increase the Seebeck coefficient. However, the low solid solubility of Cu greatly restricts the improvement of thermoelectric performance for p-type PbSe. The Hume-Rothery rule can guide the study of solid solution formation conditions and stability. In this study, one Pb2+ is successfully replaced with two Cu+ in the PbSe matrix, referencing the Hume–Rothery rule, facilitating three-valence-band convergence. Meanwhile, the Pb off-centered caused by the Coulomb force of two Cu+ results in the softening phonon mode, synergistically enhancing the power factor and reducing the lattice thermal conductivity. Furthermore, the lowest valence band convergence onset temperature of ≈500 K is achieved for Pb0.98Ag0.02Se-2%Cu2Se with further Ag-doping. An average power factor of ≈15.1 µW cm−1 K−2 and an average ZT of ≈0.66 from 300 to 773 K are obtained, which are better than other p-type PbSe thermoelectric materials. These results indicate that referring to the Hume–Rothery rule can be a promising strategy for enhancing solid solubility and thermoelectric performance. © 2025 Wiley-VCH GmbH.
Keyword ：
Hume–Rothery rule Hume–Rothery rule p-type PbSe p-type PbSe softening phonon modes softening phonon modes thermoelectric thermoelectric three-valence-band convergence three-valence-band convergence
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| GB/T 7714 | Chen, Z. , Cui, H.-H. , Wu, M. et al. Decoupling of Carrier-Phonon Transport in PbSe with Dumbbell-Like Occupied Cu+ by Referencing Hume–Rothery Rule [J]. | Advanced Functional Materials , 2025 . |
| MLA | Chen, Z. et al. "Decoupling of Carrier-Phonon Transport in PbSe with Dumbbell-Like Occupied Cu+ by Referencing Hume–Rothery Rule" . | Advanced Functional Materials (2025) . |
| APA | Chen, Z. , Cui, H.-H. , Wu, M. , Guo, W. , Zheng, Y. , Ming, H. et al. Decoupling of Carrier-Phonon Transport in PbSe with Dumbbell-Like Occupied Cu+ by Referencing Hume–Rothery Rule . | Advanced Functional Materials , 2025 . |
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Achieving high-stability thermoelectric materials with excellent average power factor and figure of merit is crucial for maximizing the output power density and conversion efficiency of thermoelectric devices. In this study, GaSb is added to PbSe as an n-type dopant to form stable solid solutions. Doping with GaSb flattens the conduction band and reduces the energy difference between the Sigma and L conduction bands, thereby significantly improving the Seebeck coefficient. Herein, the Ga and Sb atoms co-occupy the vacant Pb sites, unlike in the case of traditional single-element doping, as is verified by density functional theory calculations. The resultant structural distortion is confirmed via transmission electron microscopy. This local structure distortion caused by GaSb doping reduces the lattice thermal conductivity. Consequently, the Pb-0.99875(GaSb)(0.00125)Se sample exhibits a record-high average power factor of similar to 22.37 mu W cm(-1) K-2 and a high average figure of merit of similar to 0.94 in the temperature range of 300-873 K. Furthermore, the introduction of interstitial Cu and discordant Zn atoms further reduces the lattice thermal conductivity. The Pb-0.99875(GaSb)(0.00125)Zn0.01Se1.01-0.3%Cu sample exhibits a low lattice thermal conductivity of similar to 0.4 W m(-1) K-1 at 873 K and a record-high average figure of merit of similar to 1.01 in the temperature range of 300-873 K.
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| GB/T 7714 | Zhou, Jing , Cui, Hong-Hua , Liu, Yukun et al. Conduction band convergence and local structure distortion for superior thermoelectric performance of GaSb-doped n-type PbSe thermoelectrics [J]. | NATURE COMMUNICATIONS , 2025 , 16 (1) . |
| MLA | Zhou, Jing et al. "Conduction band convergence and local structure distortion for superior thermoelectric performance of GaSb-doped n-type PbSe thermoelectrics" . | NATURE COMMUNICATIONS 16 . 1 (2025) . |
| APA | Zhou, Jing , Cui, Hong-Hua , Liu, Yukun , Ming, Hongwei , Yu, Yan , Dravid, Vinayak P. et al. Conduction band convergence and local structure distortion for superior thermoelectric performance of GaSb-doped n-type PbSe thermoelectrics . | NATURE COMMUNICATIONS , 2025 , 16 (1) . |
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The commercial application of flexible lithium-sulfur batteries is severely hindered by poor conductivity, low active material loading, polysulfide shuttle effects, and sluggish redox kinetics. Herein, we developed a unique three-dimensional (3D) conductive network framework decorated with NiCo bimetallic particles. The 3D porous carbon conductive network skeleton formed by crosslinked carbon nanotubes effectively mitigates the volume expansion of sulfur and accommodates abundant active materials for high discharge capacity. Meanwhile, the NiCo bimetallic combines the catalytic role of Ni in sulfur reduction and Co in sulfur oxidation to achieve improved kinetics of the entire conversion of sulfur. Most importantly, the sulfur host synergizes the conducting CNTs and catalytically active bimetallic, increasing conductance and accelerating reaction kinetics, resulting in a significant improvement in rate performance. Consequently, the cells equipped with NiCo@CNT-S cathode exhibit a low-capacity decay rate of only 0.07% per cycle over 400 cycles at 1C, and an ultra-high initial specific capacity of 1030 mAh g- 1 at a high rate of 5C. Notably, the pouch cell assembled with the NiCo@CNT-S could deliver a high areal discharge capacity of 8.2 mAh cm- 2 at 0.1C, with a sulfur loading of 7.1 mg cm-2 and an E/S ratio of 7.1 mu L mg-1. This work provides novel structural design and mechanism insights for the practical application of flexible lithium-sulfur batteries.
Keyword ：
Bimetal Bimetal Carbon nanotubes Carbon nanotubes Li-S batteries Li-S batteries Lithium polysulfides Lithium polysulfides Rate performance Rate performance
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| GB/T 7714 | Liao, Shuyu , Xie, Yonghui , Zheng, Wenrui et al. Enhancing rate performance in lithium-sulfur batteries via synergistic bidirectional catalysis and improved conductivity [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 506 . |
| MLA | Liao, Shuyu et al. "Enhancing rate performance in lithium-sulfur batteries via synergistic bidirectional catalysis and improved conductivity" . | CHEMICAL ENGINEERING JOURNAL 506 (2025) . |
| APA | Liao, Shuyu , Xie, Yonghui , Zheng, Wenrui , Huang, Zewei , Zhang, Hong , Luo, Zhong-Zhen et al. Enhancing rate performance in lithium-sulfur batteries via synergistic bidirectional catalysis and improved conductivity . | CHEMICAL ENGINEERING JOURNAL , 2025 , 506 . |
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UV curable coatings have been widely used for their advantages of environmental protection and high curing efficiency. However, there are also some problems in the use of UV curable coatings, such as poor light transmission of colored coatings, shadow parts are difficult to accept light and can not be cured. In order to solve the problems existing in the curing process of UV curable coatings, the establishment of UV/ moisture dual curing system can effectively solve these problems. Using castor oil (CO), polytetramethylene ether glycol (PTMEG), isophorone diisocyanate (IPDI), hydroxyethyl methacrylate (HEMA) and tetrahydrofuran acrylate (THFA) as raw materials, a series of polyurethane prepolymers were synthesized by structural design and a series of UV/ moisture dual-curable coatings were prepared. The experimental verification, UV/ moisture dual curing system coating, not only solves the problem of traditional UV coating curing, and has better performance than UV coating, coating curing dual curing coating has excellent heat resistance and mechanical strength, tensile strength up to 8.4 MPa, small volume shrinkage, excellent weather resistance. This is a curing strategy for UV coatings that cannot fully accept UV light, and provides a new idea for the preparation of new environmentally friendly coatings by bio-based materials.
Keyword ：
Acrylate Acrylate Castor oil Castor oil Polyurethane Polyurethane UV/moisture dual-curing UV/moisture dual-curing
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| GB/T 7714 | Ding, Ao , Zhang, Pengfei , Zhou, Bing et al. Structural design and performance study of a biobased UV/moisture dual-curing coating for UV inadequate curing conditions [J]. | MATERIALS TODAY COMMUNICATIONS , 2025 , 44 . |
| MLA | Ding, Ao et al. "Structural design and performance study of a biobased UV/moisture dual-curing coating for UV inadequate curing conditions" . | MATERIALS TODAY COMMUNICATIONS 44 (2025) . |
| APA | Ding, Ao , Zhang, Pengfei , Zhou, Bing , Liu, Guang , Xu, Pingfan , Luo, Yaofa et al. Structural design and performance study of a biobased UV/moisture dual-curing coating for UV inadequate curing conditions . | MATERIALS TODAY COMMUNICATIONS , 2025 , 44 . |
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Here, we investigate PbSnS2, a wide band gap (1.13 eV) compound, as a promising thermoelectric material for power generation. Single crystal X-ray diffraction analysis reveals its 2D-layered structure, akin to the GeSe structure type, with Pb and Sn atoms sharing the same crystallographic site. The polycrystalline PbSnS2 exhibits an intrinsically ultralow lattice thermal conductivity (kappa(lat)) of 0.37 W m(-1) K-1 at 573 K. However, the low carrier concentration (n) leads to suboptimal electrical conductivity (sigma), capping the ZT value at 0.1. Accordingly, the halogen elements (Cl, Br, and I) are employed as the n-type dopants to improve the n. The DFT results indicate a significant weakening of Pb/Sn & horbar;S bonds upon halogen-doping, contributing to the observed reduction in kappa(lat). Our analysis indicates the activation of multiconduction band transport driven by halogen substitution. The PbSnS1.96Br0.04 has a high power factor of five times that of intrinsic PbSnS2. Halogen-doping weakens the Pb/Sn & horbar;S bonds and enhances the phonon scattering, leading to an ultralow kappa(lat) of 0.29 W m(-1) K-1 at 873 K for PbSnS1.96Br0.04. Consequently, PbSnS1.96Br0.04 achieved a maximum ZT value of 0.82 at 873 K.
Keyword ：
Halogen-doping Halogen-doping PbSnS2 PbSnS2 Single crystal Single crystal Thermoelectricity Thermoelectricity Ultralow thermal conductivity Ultralow thermal conductivity
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| GB/T 7714 | Chen, Zixuan , Ming, Hongwei , Li, Zhi et al. Ultralow Thermal Conductivity in Halogen-Doped PbSnS2 with Optimized Thermoelectric Properties [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2025 , 64 (21) . |
| MLA | Chen, Zixuan et al. "Ultralow Thermal Conductivity in Halogen-Doped PbSnS2 with Optimized Thermoelectric Properties" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 64 . 21 (2025) . |
| APA | Chen, Zixuan , Ming, Hongwei , Li, Zhi , Girard, Steven N. , Morris, Collin D. , Guo, Weiping et al. Ultralow Thermal Conductivity in Halogen-Doped PbSnS2 with Optimized Thermoelectric Properties . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2025 , 64 (21) . |
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Electrochemical CO2 reduction reaction (CO2RR) represents a sustainable approach to alleviate the global concern associated with excessive CO2 emission. Recently, metal-based sulfides are emerged as a special class of electrocatalysts for efficient formate production, which however suffer from massive S loss during CO2RR due to the compositional reduction. Herein, we synthesize a series of tin sulfides with high crystallinity (i.e., SnS, Sn2S3, and SnS2) as model catalysts, and reveal that the strength distribution of Sn-S bonds in atomic configurations is essential for efficient formate production. Typically, the strong and uniformly distributed Sn-S bonds in SnS2 are beneficial for inhibiting S leaching and forming favorable Sn/SnS2 heterointerfaces for CO2RR, while the weaker Sn-S bonds in SnS promote the reduction into metallic Sn. Specially, the Sn2S3 with mixed bonding strengths undergoes consecutive dissociation, starting from cleaving the weakest Sn-S bonds and then inducing accelerative reduction. Resultantly, the SnS2 achieves the highest Faraday efficiency of 93.8%+/- 0.59% at -1.0 V-RHE and a high partial current density of 195.3 mA cm(-2) at -1.2 V-RHE. This study could provide insight into the role of metal-sulfur bonds in catalysts for efficient CO2-to-formate conversion.
Keyword ：
bond strength bond strength CO2 reduction CO2 reduction formate formate S loss S loss tin sulfides tin sulfides
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| GB/T 7714 | Hou, Guoyu , Cui, Honghua , Li, Yicheng et al. Strong and uniform Sn-S bond strength in tin sulfides-based electrocatalysts enables efficient CO2-to-formate conversion [J]. | SCIENCE CHINA-MATERIALS , 2025 , 68 (5) : 1602-1610 . |
| MLA | Hou, Guoyu et al. "Strong and uniform Sn-S bond strength in tin sulfides-based electrocatalysts enables efficient CO2-to-formate conversion" . | SCIENCE CHINA-MATERIALS 68 . 5 (2025) : 1602-1610 . |
| APA | Hou, Guoyu , Cui, Honghua , Li, Yicheng , Liu, Ya , Yang, Zhenyi , Zhao, Ming et al. Strong and uniform Sn-S bond strength in tin sulfides-based electrocatalysts enables efficient CO2-to-formate conversion . | SCIENCE CHINA-MATERIALS , 2025 , 68 (5) , 1602-1610 . |
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Low-dimensional materials with charge density waves (CDW) are attractive for their potential to exhibit superconductivity and nontrivial topological electronic features. Here we report the two-dimensional (2D) chalcogenide, BaSbTe2S which acts as a new platform hosting these phenomena. The crystal structure of BaSbTe2S is composed of alternating atomically thin Te square-net layers and double rock-salt type [(SbTeS)2]2- slabs separated with Ba2+ atoms. Due to the electronic instability of the Te square net, an incommensurately modulated structure is triggered and confirmed by both single-crystal X-ray diffraction, electron diffraction, and the presence of an energy bandgap in this compound. Our first-principles electronic structure analysis and investigation of structural dynamical instability suggest that the Te network plays a dominant role in its origin. The incommensurate structure is refined with a modulation vector of q = 0.351(1)b* using an orthorhombic cell of a = 4.4696(5) & Aring;, b = 4.4680(5) & Aring;, and c = 15.999(2) & Aring; under superspace group Pmm2(0 beta 0)000 at 293 K. The modulation vector q varies as a function of both occupancy of Te in the square net and temperature, indicating the CDW order can be modulated by local distortions. The CDW can be suppressed by pressure, leading to the emergence of superconductivity with a T c up to 7.5 K at 13.6 GPa, suggesting a competition between the CDW order and superconductivity. Furthermore, electrical transport under the magnetic field reveals the existence of compensated high mobility electron- and hole-bands near the Fermi surface (mu similar to 600-3500 cm2V-1s-1), suggesting Dirac-like band dispersion.
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| GB/T 7714 | Luo, Zhong-Zhen , Zhao, Hengdi , Cai, Weizhao et al. Charge Density Wave and Superconductivity in BaSbTe2S Heterolayer Crystal with 2D Te Square Nets [J]. | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY , 2025 , 147 (8) : 6753-6762 . |
| MLA | Luo, Zhong-Zhen et al. "Charge Density Wave and Superconductivity in BaSbTe2S Heterolayer Crystal with 2D Te Square Nets" . | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 147 . 8 (2025) : 6753-6762 . |
| APA | Luo, Zhong-Zhen , Zhao, Hengdi , Cai, Weizhao , Shahabfar, Shima , Li, Juncen , Cai, Songting et al. Charge Density Wave and Superconductivity in BaSbTe2S Heterolayer Crystal with 2D Te Square Nets . | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY , 2025 , 147 (8) , 6753-6762 . |
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Lithium metal, distinguished by its low reduction potential and high theoretical capacity, is regarded as the optimal choice for the next generation of anode materials. However, the uneven deposition behavior of lithium metal anodes (LMAs) and their infinite volume change during repeated cycling significantly restrict their commercialization applications. Herein, a lithiophilic ZnCo2O4 nanowire-decorated three-dimensional conductive framework (ZCO@CP) was prepared by a simple hydrothermal annealing method and employed as a multifunctional interlayer for hyperstable LMAs. As a Li+ redistributor and lithiophilic host, the ZCO@CP interlayer can effectively reduce the nucleation barrier and enhance the rate of Li deposition. As a result, ZCO@CP-Li symmetric cells demonstrate superior long-term stability of Li plating/stripping over 1100 cycles at a high current density of 40 mA cm-2 and a high areal capacity of 10 mA h cm-2. Furthermore, ZCO@CP-Li//LFP full cells exhibit a high discharge capacity of 131.8 mA h g-1 after 200 cycles at 1 C, demonstrating excellent cycling stability. This work lays a foundation for the development of practical LMAs capable of operating at high current densities and large areal capacities.
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| GB/T 7714 | Yang, Tengjun , Zheng, Wenrui , Xie, Yonghui et al. A lithiophilic bimetallic oxide interlayer enabling high-rate and dendrite-free lithium metal anodes [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2025 , 13 (21) : 15673-15679 . |
| MLA | Yang, Tengjun et al. "A lithiophilic bimetallic oxide interlayer enabling high-rate and dendrite-free lithium metal anodes" . | JOURNAL OF MATERIALS CHEMISTRY A 13 . 21 (2025) : 15673-15679 . |
| APA | Yang, Tengjun , Zheng, Wenrui , Xie, Yonghui , Zhang, Hong , Zhang, Caixia , Luo, Zhong-Zhen et al. A lithiophilic bimetallic oxide interlayer enabling high-rate and dendrite-free lithium metal anodes . | JOURNAL OF MATERIALS CHEMISTRY A , 2025 , 13 (21) , 15673-15679 . |
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Thermoelectric materials hold great potential for direct conversion of ubiquitous waste heat into electricity. However, their commercialization is hindered by low efficiency, reliance on rare and expensive Te, and limited stability under operating conditions. This review explores recent advances in novel strategies for achieving high thermoelectric performance and stability in Te-free inorganic bulk materials. First, we discuss diverse innovative techniques aimed at substantially enhancing electrical transport properties. These methods encompass strategies such as charge carrier engineering, band convergence, band inversion, valley anisotropy, multiband synglisis, and the incorporation of resonant levels or midgap states. Then we focus on strategies to reduce lattice thermal conductivity, including phonon scattering induced by multidimensional defects, off-center doping, resonance scattering, and lattice softening. Additionally, this review presents strategies for decoupling electron and phonon transport to enhance the thermoelectric performance of materials further. The strategies include interface engineering, crystal symmetry manipulation, high-entropy engineering and nanostructuring, high-pressure technology, and magnetically enhanced thermoelectrics. Moreover, we highlight novel strategies for improving the chemical and thermal stability of materials under operating conditions. Last, we discuss current controversies and challenges and suggest future directions for further research to improve the thermoelectric performance of Te-free bulk materials.
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| GB/T 7714 | Ming, Hongwei , Luo, Zhong-Zhen , Zou, Zhigang et al. Strategies and Prospects for High-Performance Te-Free Thermoelectric Materials [J]. | CHEMICAL REVIEWS , 2025 , 125 (7) : 3932-3975 . |
| MLA | Ming, Hongwei et al. "Strategies and Prospects for High-Performance Te-Free Thermoelectric Materials" . | CHEMICAL REVIEWS 125 . 7 (2025) : 3932-3975 . |
| APA | Ming, Hongwei , Luo, Zhong-Zhen , Zou, Zhigang , Kanatzidis, Mercouri G. . Strategies and Prospects for High-Performance Te-Free Thermoelectric Materials . | CHEMICAL REVIEWS , 2025 , 125 (7) , 3932-3975 . |
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