ChemNanoMat最新文献_第6页

ZnAl/LDH@CQD: Synthesis, Characterization and Use as Adsorbent ZnAl/LDH@CQD: 合成、表征及用作吸附剂

IF 3.8 4区材料科学

ChemNanoMat Pub Date : 2024-07-19 DOI: 10.1002/cnma.202400082

Daniely Carlos Henrique, Pollyanna Vanessa dos Santos Lins, Danilo Henrique da Silva Santos, Luiz Daniel da Silva Neto, Jordana Georgin, Dison Stracke Pfingsten Franco, Simoni Margareti Plentz Meneghetti, Lucas Meili

{"title":"ZnAl/LDH@CQD: Synthesis, Characterization and Use as Adsorbent","authors":"Daniely Carlos Henrique, Pollyanna Vanessa dos Santos Lins, Danilo Henrique da Silva Santos, Luiz Daniel da Silva Neto, Jordana Georgin, Dison Stracke Pfingsten Franco, Simoni Margareti Plentz Meneghetti, Lucas Meili","doi":"10.1002/cnma.202400082","DOIUrl":"https://doi.org/10.1002/cnma.202400082","url":null,"abstract":"This work aimed to evaluate the synthesis of the ZnAl/layered double hydroxides (LDH) composite with carbon quantum dots (CQD) and its application in water treatment. The synthesis of the ZnAl/LDH@CQD composite was carried out by the co‐precipitation method, being characterized by XRD, FTIR, pHZCP, SEM, EDX, TG, and N2 adsorption/desorption. The results presented a composite with a mesoporous structure, satisfactory values of surface area (18.72 m2 g‐1), and pore size (14.78 nm). Preliminary adsorption tests were carried out, and the composite was efficient in removing some dyes and drugs. The kinetic and equilibrium data for the adsorption study for methylene blue fit best the General Order and Liu models, respectively, with maximum adsorption capacity occurring at 30°C (12.11 mg g‐1). Thermodynamic analysis indicated that the adsorption of MB was exothermic and spontaneous, governed mostly by physical processes. The regeneration of the adsorbent was carried out by oxidation with hydrogen peroxide (250 mmol), showing a 20.93% reduction in the percentage of removal after the first cycle and remaining practically constant until the sixth cycle. These results present an efficient way of using CQD composite as an adsorbent material, with potential application in water purification for human and environmental use.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"6 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surface-Reengineering of BNNs@Hydrocarbon Polymer Composites for Ultra-Low Dielectric Constant for High-Frequency Applications 重新设计 BNNs@Hydrocarbon 聚合物的表面，为高频应用提供超低介电常数

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-07-19 DOI: 10.1002/cnma.202400181

MD Zahidul Islam, Hridam Deb, MD Khalid Hasan, Azim Abdullaev, Kun Peng, Shuaida Shi, Yubing Dong, Yaqin Fu

{"title":"Surface-Reengineering of BNNs@Hydrocarbon Polymer Composites for Ultra-Low Dielectric Constant for High-Frequency Applications","authors":"MD Zahidul Islam, Hridam Deb, MD Khalid Hasan, Azim Abdullaev, Kun Peng, Shuaida Shi, Yubing Dong, Yaqin Fu","doi":"10.1002/cnma.202400181","DOIUrl":"10.1002/cnma.202400181","url":null,"abstract":"This research investigates the synthesis and evaluation of cyclic olefin copolymer (COC) composites with surface-engineered boron nitride nanosheets (BNNs) at various concentrations. The study focuses on the impact of Cetyltrimethylammonium bromide (CTAB) on BNNs′ surface functionalization to improve their dispersion within the COC matrix, including its dielectric behavior, dielectric breakdown strength, thermal management capabilities, hygroscopic properties, and mechanical robustness. The methodological approach adopted for the fabrication of COC/BNNs hybrid composites commenced with the synthesis of BNNs, surface functionalization of BNNs, in-situ mixing and hot-press. This step aimed to enhance compatibility and adhesion between BNNs and the COC matrix, facilitating more homogeneous nanofiller dispersion. The investigative scope of this study encompassed a rigorous evaluation of the resultant composites, with a particular emphasis on their dielectric properties. The dielectric constant (ϵ′) and loss tangent (δ) were measured at a frequency of 10 GHz, revealing an ultra-low dielectric constant of 1.28, an exceptionally minimal loss tangent of 0.000146, a remarkable 327% (In-plane) & 129% (axial) increase of thermal conductivity, significant improvement of dielectric breakdown strength up to 88.4 mV/mm, and low water absorptions observed. These results indicate the potential of COC/BNNs composites for high-frequency electronic packaging applications requiring low dielectric constants.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring Energy Structure of Low-Toxic Ternary Ag−Bi−S Quantum Dots through Solution-Phase Synthesis for Quantum-Dot-Sensitized Solar Cells 通过溶液相合成为量子点敏化太阳能电池定制低毒性三元银-铋-硅量子点的能量结构

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-07-17 DOI: 10.1002/cnma.202400029

Wentao Zhang, Dr. Kazutaka Akiyoshi, Prof. Tatsuya Kameyama, Prof. Tsukasa Torimoto

{"title":"Tailoring Energy Structure of Low-Toxic Ternary Ag−Bi−S Quantum Dots through Solution-Phase Synthesis for Quantum-Dot-Sensitized Solar Cells","authors":"Wentao Zhang, Dr. Kazutaka Akiyoshi, Prof. Tatsuya Kameyama, Prof. Tsukasa Torimoto","doi":"10.1002/cnma.202400029","DOIUrl":"10.1002/cnma.202400029","url":null,"abstract":"Low-toxic multinary semiconductor quantum dots (QDs) showing a photoresponse in a wide wavelength range from visible to near-IR wavelength regions have been intensively investigated for fabricating efficient solar light conversion systems. Recently, AgBiS2 QDs have attracted much attention for their application to improve the performance of QD solar cells because they have a large absorption coefficient in the visible and near-IR regions. In this report, we describe solution-phase preparation of ternary Ag−Bi−S QDs with different sizes and with different Ag/Bi ratios. The average size of resulting spherical Ag−Bi−S QDs was controllable from 2.7 to 8.1 nm by adjusting the reaction temperature from 373 to 473 K, while the Ag fraction of obtained QDs also increased with an increase in particle size. The absorption onset wavelength shifted from 850 to 1200 nm in the near-IR region as the particle size increased. AgBiS2 QDs with an almost stoichiometric composition, obtained at reaction temperatures of 423 K and 473 K, contained no deep intragap states and exhibited a p-type semiconductor behavior, while QDs prepared at a reaction temperature of 393 K or lower had non-stoichiometric Ag-deficient compositions producing intragap defect states. Sensitized solar cells fabricated with stoichiometric AgBiS2 QDs exhibited a photoresponse in visible and near-IR wavelength regions, the optimal PCE being 0.74% with AgBiS2 QDs of 6.2 nm in diameter that were prepared at 423 K.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141719669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zr-MOF Nanosheets Featuring Benzothiadiazoles Enable Efficient Visible Light Driven Photooxidation of Sulfides and Amines 以苯并噻二唑为特征的 Zr-MOF 纳米片能在可见光驱动下实现硫化物和胺的高效光氧化反应

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-07-16 DOI: 10.1002/cnma.202400302

Yu-Qing Zhao, Xing-Yu Zhou, Ying-Mei Zhao, Dr. Bi-Fu Luo, Hai-Xing Li, Yuan-Zhi Tan, Prof. Jin-Liang Zhuang

{"title":"Zr-MOF Nanosheets Featuring Benzothiadiazoles Enable Efficient Visible Light Driven Photooxidation of Sulfides and Amines","authors":"Yu-Qing Zhao, Xing-Yu Zhou, Ying-Mei Zhao, Dr. Bi-Fu Luo, Hai-Xing Li, Yuan-Zhi Tan, Prof. Jin-Liang Zhuang","doi":"10.1002/cnma.202400302","DOIUrl":"10.1002/cnma.202400302","url":null,"abstract":"Ultrathin zirconium-based metal−organic framework (MOF) nanosheets, embedded with photochromic units, are expected to be highly efficient heterogeneous photocatalysts, thanks to their rich catalytic sites, short diffusion paths, and effective separation of photogenerated charge carriers. Herein, we reported the synthesis of novel Zr-MOF nanosheets (Zr-BTDB) through a solvothermal synthesis that integrates benzothiadiazole (BTz) as a photochromic moiety within the framework of MOF. The Zr-BTDB nanosheets processes a [Zr12(μ3-O)8(μ3-OH)8(μ2-OH)6] cluster with hcp topology. Importantly, Zr-BTDB nanosheets exhibit excellent photocatalytic activity for the photooxidation of sulfides and amines at room temperature under blue light irradiation. Notably, these nanosheets maintain their photocatalytic activity and selectivity for up to five cycles without significant loss of activity and crystallinity. Systematical catalytic reactions revealed that the Zr-BTDB nanosheets enable the generation of singlet oxygen (1O2) and superoxide radical (O2⋅−) under visible light irradiation, which is critical reactive oxygen species for the photooxidation of sulfides and benzylamines. Our work represents a straightforward route for the preparation of ultrathin, water stable, and visible-light-activated Zr-MOF nanosheets, offering new potentials for the selective photooxidation of sulfides and amines in an eco-friendly way.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 11","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141640669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conversion of 5-Hydroxymethylfurfural and Carbohydrates to 2,5-Diformylfuran Over MoOx/Biochar Catalysts 在支撑的钼基催化剂上将 5-羟甲基糠醛和碳水化合物转化为 2,5-二甲酰呋喃

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-07-15 DOI: 10.1002/cnma.202400351

Delong Yang, Ziting Du, Dr. Jinhang Dai, Qingya Cao, Prof. Zhaobao Xiang, Prof. Gang Chen, Dr. Fukun Li

{"title":"Conversion of 5-Hydroxymethylfurfural and Carbohydrates to 2,5-Diformylfuran Over MoOx/Biochar Catalysts","authors":"Delong Yang, Ziting Du, Dr. Jinhang Dai, Qingya Cao, Prof. Zhaobao Xiang, Prof. Gang Chen, Dr. Fukun Li","doi":"10.1002/cnma.202400351","DOIUrl":"10.1002/cnma.202400351","url":null,"abstract":"Here, a series of nitrogen-doped carbon (NC) supported transition metal oxide catalysts were prepared by pyrolysis of chitosan-metal salt mixtures for the efficient synthesis 2,5-diformylfuran (DFF) from 5-hydroxymethylfurfural (HMF) and fructose. Among them, supported molybdenum-based species on nitrogen-doped carbon (Mo/NC) exhibited excellent activity and selectivity for selective oxidation of HMF to DFF. The presence of nitrogen species reduces the electron cloud density around the Mo species, thereby improving the catalytic activity. Moreover, the interaction between active MoO2 species on the catalyst surface and NC ensured the stability of the catalyst, resulting in no significant loss of activity after four catalytic cycles. 99.5 % and 55.1 % yields of DFF with full conversion were obtained from HMF and fructose respectively over Mo/NC-chitosan-600 in DMSO under ambient air. In order to enhance DFF yield from fructose, sulfonate groups were introduced into Mo/NC-chitosan-600 catalyst, leading to the highest DFF yield of 70.2 %. In addition, this catalyst also allowed 10.0%, 22.9% and 33.3% DFF yields from glucose, sucrose and inulin, respectively.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141646981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantitative and Ultrasensitive Detection of Four Inflammatory Biomarkers by Gold Nanoparticle-Based Paper Sensor 基于金纳米粒子的纸质传感器对四种炎症生物标记物进行定量和超灵敏检测

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-07-15 DOI: 10.1002/cnma.202400118

Liya Ye, Aihong Wu, Liqiang Liu, Hua Kuang, Chuanlai Xu, Xinxin Xu

{"title":"Quantitative and Ultrasensitive Detection of Four Inflammatory Biomarkers by Gold Nanoparticle-Based Paper Sensor","authors":"Liya Ye, Aihong Wu, Liqiang Liu, Hua Kuang, Chuanlai Xu, Xinxin Xu","doi":"10.1002/cnma.202400118","DOIUrl":"10.1002/cnma.202400118","url":null,"abstract":"Due to the complexity and diversity of infectious diseases, diagnosis based solely on symptoms and imaging manifestations is associated with a high rate of misdiagnosis, so it is particularly important to find reliable and accurate biomarkers. Four inflammatory biomarkers (CRP, IL-6, PCT and SAA) have different manifestations and roles in different infectious diseases and stages of infection, and the diagnosis and identification of infectious diseases can be realized through quantitative analysis of these four biomarkers simultaneously. In this study, we developed a colloidal gold nanoparticle (AuNP)-based multiplex LFA strip using eight highly-sensitive monoclonal antibodies that simultaneously detected CRP, IL-6, PCT and SAA in serum within 15 min. And quantitative analysis was achieved with a portable strip reader, the LODs were 2.5 μg/mL, 25.3 pg/mL 0.87 ng/mL and 8.8 μg/mL for CRP, IL-6, PCT and SAA, while detection ranges were 2.5–200 μg/mL, 25.3–8000 pg/mL 0.87–100 ng/mL and 8.8–200 μg/mL. Moreover, the quantitative colloidal gold assay correlated well with the results of a chemiluminescence immunoassay when testing clinical serum samples. Our developed method was reliable and accurate according to the recovery test results. Therefore, the strip can be used as an alternative method for the simultaneous monitoring of CRP, IL-6, PCT and SAA in serum samples.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141647233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-Assembled Bioinspired Short Metallopeptide Nanostructures for Plausible Biomedical Applications 自组装生物启发短金属肽纳米结构的合理生物医学应用

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-07-14 DOI: 10.1002/cnma.202400098

Shruti Sharma, Aanand Kautu, Dr. Nikunj Kumar, Narayan Swain, Vikas Kumar, Dr. Ramesh Singh, Dr. Khushboo Kesharwani, Dr. Narendra Singh, Dr. Puneet Gupta, Dr. Khashti Ballabh Joshi

{"title":"Self-Assembled Bioinspired Short Metallopeptide Nanostructures for Plausible Biomedical Applications","authors":"Shruti Sharma, Aanand Kautu, Dr. Nikunj Kumar, Narayan Swain, Vikas Kumar, Dr. Ramesh Singh, Dr. Khushboo Kesharwani, Dr. Narendra Singh, Dr. Puneet Gupta, Dr. Khashti Ballabh Joshi","doi":"10.1002/cnma.202400098","DOIUrl":"10.1002/cnma.202400098","url":null,"abstract":"Metal chelation, characterized by its precise interactions with diverse functional groups, assumes a pivotal role in providing structural stability and generating reactive centers within metalloproteins and metallopeptides. This, in turn, orchestrates the architecture and functionality of various biological processes in living organisms. In our biomimetic approach inspired by the intricacies of natural metallopeptides, we have purposefully designed pyridine-bis-tyrosine, a concise Metallopeptide Conjugate (sMPC). Demonstrating the capacity to form complexes with various bioactive metal ions, sMPC emerges as a promising tool for advancing our understanding of metal-binding proteins and catalyzing the development of cutting-edge biotechnological materials and technologies. Our investigations underscore the hierarchical self-assembly of these abridged conjugates into toroidal to vesicle nanostructures, influenced by concentration, and their susceptibility to spatial manipulation through metal ion coordination with functional groups. These biocompatible metal peptide complexes and their resultant nanomaterials present specific potential as exceptional therapeutic agents to address problems associated with metal ion deficiencies, offering a facile and low-cost alternative to traditional metallodrugs.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141649552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fast, Simple, and Cost-Effective Fabrication of High-Performance Thermoelectric Ag2Se through Low-Temperature Hot-Pressing 通过低温热压快速、简单、经济高效地制造出高性能热电Ag2Se

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-07-12 DOI: 10.1002/cnma.202400319

Jariya Lasiw, Teerasak Kamwanna, Supree Pinitsoontorn

{"title":"Fast, Simple, and Cost-Effective Fabrication of High-Performance Thermoelectric Ag2Se through Low-Temperature Hot-Pressing","authors":"Jariya Lasiw, Teerasak Kamwanna, Supree Pinitsoontorn","doi":"10.1002/cnma.202400319","DOIUrl":"10.1002/cnma.202400319","url":null,"abstract":"Silver selenide (Ag2Se) is a promising thermoelectric material for near-room temperature applications. This study proposes a fast, simple, and cost-effective method for producing high thermoelectric performance bulk Ag2Se. Ag2Se powders were synthesized from Ag and Se powders via a one-hour wet ball milling process, followed by the fabrication of bulk pellets through low-temperature hot-pressing (130–250 °C) with a mere 0.5-hour holding time. Both Ag2Se powders and bulk pellets exhibited a single phase of Ag2Se with an orthorhombic structure. Moreover, uniform compositional distribution with the stoichiometric Ag : Se ratio was observed in all samples. Microstructural analysis revealed distinct grain boundaries in samples hot-pressed below 190 °C, transitioning to grain coalescence was at 190 °C and 250 °C. The thermoelectric and transport measurements demonstrated that the electrical conductivity decreased and the Seebeck coefficient increased with hot-pressing temperatures from 130 °C and 190 °C primarily due to reduced carrier concentrations. Thermal conductivity decreased with increasing hot-pressing temperatures up to 190 °C, attributed to the weak chemical bonding of Ag2Se and the presence of defects. This combination resulted in a peak zT over 1.0 at 300 K, with an average zT close to 1.0 from 300 to 380 K. In comparison to other reported synthesis methods, the present approach offers significantly reduced processing time, simplicity, and cost-effectiveness. Despite lower temperatures and shorter processing times, the method produces Ag2Se with zT values comparable to more intricate techniques. This fabrication route holds the potential for scalable mass production in the future.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal-Support Interaction Boosts Au Catalysts for Hydrogen Evolution-Coupled Ethanol Electro-Oxidation Reaction 金属与支撑物的相互作用促进了金催化剂在氢气进化耦合乙醇电氧化反应中的应用

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-07-12 DOI: 10.1002/cnma.202400267

Yiquan Yin, Dr. Fangwei Gu, Yuxin Wang, Chengjin Chen, Yongsheng Wang, Prof. Wei Zhu, Prof. Zhongbin Zhuang

引用次数: 0

Highly Sensitive Two-Dimensional Ruddlesden-Popper Perovskites for Thermochromic Smart Windows 用于热致变色智能窗的高灵敏度二维 Ruddlesden-Popper Perovskites

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-07-11 DOI: 10.1002/cnma.202400306

Ruijie Han, Qi Yue, Yingjie Cao, Duo Wei, Xiaolin Liu, Jia Lin

{"title":"Highly Sensitive Two-Dimensional Ruddlesden-Popper Perovskites for Thermochromic Smart Windows","authors":"Ruijie Han, Qi Yue, Yingjie Cao, Duo Wei, Xiaolin Liu, Jia Lin","doi":"10.1002/cnma.202400306","DOIUrl":"10.1002/cnma.202400306","url":null,"abstract":"With the growing demand for high-performance smart windows, the discover of a class of thermochromic materials with reversible cycling and rapid response characteristics has become urgent. In this work, we have uncovered a two-dimensional (2D) Ruddlesden-Popper (RP) phase halide perovskite, (PMA)2MAPb2I7−xClx, where PMA=C6H5CH2NH3 and MA=CH3NH3, exhibiting exceptional reversible thermochromic properties. The 2D RP phase perovskite thin film features a low transition temperature (Tc=30 °C from the hydrated state to the hot state, along with a fast transition time of 40 s. Furthermore, the addition of 0.5 times excess MAI significantly enhances the visible light transmittance of the hydrated state. Characteristic hydration peaks in X-ray diffraction patterns and O−H bond absorption peaks Fourier-transform infrared spectra are observed in the thin film in its hydrated state, which disappear in the hot state, validating its reversible thermochromic properties. Additionally, a solar cell based on the thermochromic 2D RP phase thin film achieves a power conversion efficiency of 2.31 %, offering a promising solution for advanced smart window technologies.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0