Science China Chemistry最新文献_第8页

Advances in the synthesis of durable Pt-zeolite catalysts for propane dehydrogenation 丙烷脱氢耐用pt -沸石催化剂的合成研究进展

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-04-01 DOI: 10.1007/s11426-025-3265-5

Zhikang Xu, Huizhen Hong, Xiaoting Shen, Xiaojun Bao, Haibo Zhu

{"title":"Advances in the synthesis of durable Pt-zeolite catalysts for propane dehydrogenation","authors":"Zhikang Xu, Huizhen Hong, Xiaoting Shen, Xiaojun Bao, Haibo Zhu","doi":"10.1007/s11426-025-3265-5","DOIUrl":"10.1007/s11426-025-3265-5","url":null,"abstract":"<div><p>Driven by the global energy transition and the rapid expansion of shale gas exploitation, propane dehydrogenation (PDH) has become the leading technology for on-purpose propylene production. This process is widely recognized for its abundant feedstock supply, high propylene selectivity, and cost-effective operation. However, conventional Pt-based catalysts in industrial applications suffer from rapid deactivation due to metal sintering and coke deposition under high-temperature conditions. Therefore, improving the high-temperature stability of PDH catalysts remains a significant scientific and technological challenge. In this context, this review comprehensively summarizes recent advances in the design and synthesis of coke- and sintering-resistant Pt-zeolite catalysts for PDH. The synthetic methodologies are systematically classified into six distinct categories according to the nature of the interaction between Pt species and the zeolite support. For each category, the synthesis concept, structural characteristics, and catalytic performance are thoroughly discussed. The established synthesis-structure-performance relationships provide pivotal guidance for the rational design of next-generation high-performance PDH catalysts. Finally, the review concludes with a perspective on remaining challenges and potential future research directions.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 8","pages":"4292 - 4308"},"PeriodicalIF":9.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent progress in conformation-tunable organic luminescent molecules 构象可调有机发光分子研究进展

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-03-31 DOI: 10.1007/s11426-025-3268-9

Zhu Chen, Kaixuan Nie, Huangjun Deng, Jun Li, Bo Wu, Zhan Yang, Zhu Mao, Juan Zhao, Bingjia Xu, Zhenguo Chi

{"title":"Recent progress in conformation-tunable organic luminescent molecules","authors":"Zhu Chen, Kaixuan Nie, Huangjun Deng, Jun Li, Bo Wu, Zhan Yang, Zhu Mao, Juan Zhao, Bingjia Xu, Zhenguo Chi","doi":"10.1007/s11426-025-3268-9","DOIUrl":"10.1007/s11426-025-3268-9","url":null,"abstract":"<div><p>Organic luminescent materials with tunable luminescent properties have attracted considerable interest and demonstrated promising application potential. Molecular conformation is a crucial consideration in regulating luminescence, as it significantly impacts photophysical properties, including emission color, lifetime, and efficiency. Conformational changes are influenced by molecular intrinsic structures, demonstrating high designability. Moreover, the process of conformational changes is sensitive to external factors, which allows for the real-time regulation of luminescent properties via macroscopic methods. Therefore, molecules with tunable conformations are ideal candidates for constructing multifunctional luminescent materials and have witnessed remarkable progress over recent decades. In an attempt to highlight this type of molecule, this review focuses on the recent advances in conformation-tunable organic luminescent molecules, including their design, mechanism, properties, and applications. Representative molecules and structures are summarized and classified into two categories, including rotatable and bendable, according to the structural features of their conformational changes. Moreover, the challenges facing this field and future directions are also discussed.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 8","pages":"4243 - 4263"},"PeriodicalIF":9.8,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistically enhancing photocatalytic and photothermal effects at the fiber-liquid interface through terminal-extended architectures 通过终端扩展结构协同增强光纤-液体界面的光催化和光热效应

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-03-30 DOI: 10.1007/s11426-025-3241-3

Jingshuai Zhu, Jianming Chen, Mengmeng Han, Zishuo Zhang, Fangqing Fan, Jiaxin Zheng, Shiguo Chen, Yuanfeng Wang, Xungai Wang

{"title":"Synergistically enhancing photocatalytic and photothermal effects at the fiber-liquid interface through terminal-extended architectures","authors":"Jingshuai Zhu, Jianming Chen, Mengmeng Han, Zishuo Zhang, Fangqing Fan, Jiaxin Zheng, Shiguo Chen, Yuanfeng Wang, Xungai Wang","doi":"10.1007/s11426-025-3241-3","DOIUrl":"10.1007/s11426-025-3241-3","url":null,"abstract":"<div><p>Photocatalytic hydrogen evolution and photothermal desalination have traditionally been developed as separate technologies; however, their integration through rational molecular design remains unexplored. Here, a photosensitive organic semiconductor BT-BO-L4F was synthesized by extending the <i>π</i>-conjugated structure of the end groups in BO-L4F. It exhibits a narrower bandgap and better electron mobility than BO-L4F, offering higher photothermal and photocatalytic potential. By integration with PM6 to form a donor-acceptor heterojunction, dual applications of efficient photocatalytic hydrogen production and photothermal seawater desalination can be achieved. The prepared PM6:BT-BO-L4F system achieved a photocatalytic sacrificial-type hydrogen evolution rate of 86.6 mmol h<sup>−1</sup> m<sup>−2</sup> as well as water evaporation rate of 1.66 kg m<sup>−2</sup> h<sup>−1</sup> with 93.2% conversion efficiency, significantly outperforming the PM6:BO-L4F system. This work introduced a molecular-level optimization strategy for synergistically enhancing photocatalytic and photothermal performance, thereby establishing a new paradigm for efficient co-production of hydrogen energy and clean water.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 7","pages":"3547 - 3555"},"PeriodicalIF":9.8,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148553303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gold-organic hybrid 2D superlattices promote phosphorescence 金-有机杂化二维超晶格促进磷光

IF 9.7 1区化学

Science China Chemistry Pub Date : 2026-03-30 DOI: 10.1007/s11426-025-3324-3

Meiqi Dai, Dongpeng Yan

引用次数: 0

Recent advances in regioselective intermolecular three-component dialkylation of alkenes 区域选择性烯烃分子间三组分双化反应研究进展

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-03-30 DOI: 10.1007/s11426-025-3194-0

Fu Ye, Peng Ren, Fan Luo, Xianzhou Zheng, Fangrui Zhong, Weiming Yuan

引用次数: 0

Synthesis and characterization of multi-stimuli-responsive luminescent two-coordinate copper(I) complexes featuring 1,3-imidazolium-derived mesoionic carbenes 1,3-咪唑衍生介离子羰基多刺激响应发光双配位铜配合物的合成与表征

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-03-30 DOI: 10.1007/s11426-025-3217-5

Xin Li, Jia-Ling Zhu, Jian-Tao Wang, Man Li, Yu-Jia Liu, Can Chen, Ying-Feng Han

{"title":"Synthesis and characterization of multi-stimuli-responsive luminescent two-coordinate copper(I) complexes featuring 1,3-imidazolium-derived mesoionic carbenes","authors":"Xin Li, Jia-Ling Zhu, Jian-Tao Wang, Man Li, Yu-Jia Liu, Can Chen, Ying-Feng Han","doi":"10.1007/s11426-025-3217-5","DOIUrl":"10.1007/s11426-025-3217-5","url":null,"abstract":"<div><p>Stimulus-responsive luminescent materials have attracted considerable attention because of their potential applications in information decryption and anti-counterfeiting. Carbene-metal-amide (CMA) complexes are promising for the development of stimulus-responsive luminescent materials due to their easily tunable excited states and flexible structures. In this study, we designed and synthesized a series of luminescent CMA complexes (<b>1–8</b>) containing 1,3-imidazolium-derived mesoionic carbenes (iMICs) with tunable π-accepting properties. Interestingly, complexes <b>1–6</b> emitted solution-phase phosphorescence when their concentration was increased or the excitation wavelength was decreased, whereas complexes <b>7</b> and <b>8</b> did not emit phosphorescence under similar conditions. Furthermore, complexes <b>1–4</b> displayed aggregation-induced phosphorescence in solution and room-temperature phosphorescence in the solid state. These observed changes in the optical properties correlated with the gradual increase in the energy gap between the lowest singlet and triplet excited states determined by theoretical calculations. Moreover, we demonstrated the high-level information encryption and anti-counterfeiting via on-demand multicolor displays. These findings demonstrate that 1,3-imidazolium-derived iMICs, which are readily amenable to structural modification, can substantially influence the molecular configuration and excited-state dynamics of CMA complexes, thus offering a viable strategy for precise modulation of their photophysical properties.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 7","pages":"3462 - 3468"},"PeriodicalIF":9.8,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148552895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of a reversible photoluminescent one-dimensional coordination polymer with UV and microwave-responsive switching 具有紫外和微波响应开关的可逆光致发光一维配位聚合物的设计

IF 9.7 1区化学

Science China Chemistry Pub Date : 2026-03-30 DOI: 10.1007/s11426-025-3229-5

Shu-Fen Zhang, Ming Dai, Jian-Ping Lang

引用次数: 0

Iron oxide promoting low-temperature performance of low-Pt catalysts for preferential oxidation of CO in H2 氧化铁促进低铂催化剂在H2中优先氧化CO的低温性能

IF 9.7 1区化学

Science China Chemistry Pub Date : 2026-03-27 DOI: 10.1007/s11426-025-3263-7

Lijie Yan, Biao Feng, Chenghui Mao, Xiaoyu Liu, Jingyi Tian, Lijun Yang, Qiang Wu, Xizhang Wang, Hongwen Huang, Yining Fan, Zheng Hu

引用次数: 0

Tunable B←N Lewis pairs enabling dative organic frameworks with intrinsic stimuli-responsiveness 可调的B←N Lewis对实现具有内在刺激响应性的附加有机框架

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-03-27 DOI: 10.1007/s11426-025-3237-8

Zihao Wang, Xupeng Ji, Liu Yang, Yuncong Xue, Zhao Gao, Wei Tian

{"title":"Tunable B←N Lewis pairs enabling dative organic frameworks with intrinsic stimuli-responsiveness","authors":"Zihao Wang, Xupeng Ji, Liu Yang, Yuncong Xue, Zhao Gao, Wei Tian","doi":"10.1007/s11426-025-3237-8","DOIUrl":"10.1007/s11426-025-3237-8","url":null,"abstract":"<div><p>B←N Lewis pairs have emerged as a highly versatile platform for modulating molecular electronics and constructing adaptive functional materials, owing to their tunable coordination strength and optoelectronic properties. Nevertheless, precise control over their bonding characteristics and the achievement of reversible stimuli-responsiveness at the framework-level remain formidable challenges. Herein, we present a supramolecular design strategy for tuning B←N Lewis acid-base pairs with distinct electronic characteristics by employing a <i>π</i>-conjugated planar boron compound as Lewis acid and three nitrogen-containing Lewis bases with different electronic properties. This approach enables a systematic exploration of their binding strength, directionality, and optical behaviors. Furthermore, a series of B←N dative-bonded organic frameworks (<b>DOFs</b>) is constructed by integrating a <i>C</i><sub>2</sub>-symmetric boron monomer with <i>C</i><sub>3</sub>-symmetric nitrogen monomers. The resultant <b>DOFs</b> exhibit reversible fluorescence color transitions and structural recovery upon alternating stimuli of trifluoroacetic acid and triethylamine, demonstrating their potential for dynamic response in the development of advanced functional materials.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 7","pages":"3602 - 3609"},"PeriodicalIF":9.8,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148553120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantifying proton transport kinetics of gramicidin A channel at the single-vesicle level 单囊水平上格兰霉素A通道质子输运动力学的定量研究

IF 9.7 1区化学

Science China Chemistry Pub Date : 2026-03-27 DOI: 10.1007/s11426-025-3333-4

Shenglong Yang, Shilong Tian, Yingying Zhao, Zhuozhang Li, Wei Ma

引用次数: 0