Science China Chemistry最新文献_第3页

Fullerene-induced fibril network morphology for high-performance inkjet-printed organic solar cells 富勒烯诱导的高性能喷墨打印有机太阳能电池的纤维网络形态

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-07 DOI: 10.1007/s11426-026-3486-9

Lifeng Sang, Xingze Chen, Xuefei Weng, Qing Zhang, Jinjing Qiu, Fengfan Gong, Gaolei Zhan, Qi Chen, Chang-Qi Ma, Qun Luo

{"title":"Fullerene-induced fibril network morphology for high-performance inkjet-printed organic solar cells","authors":"Lifeng Sang, Xingze Chen, Xuefei Weng, Qing Zhang, Jinjing Qiu, Fengfan Gong, Gaolei Zhan, Qi Chen, Chang-Qi Ma, Qun Luo","doi":"10.1007/s11426-026-3486-9","DOIUrl":"10.1007/s11426-026-3486-9","url":null,"abstract":"<div><p>Inkjet printing (IJP) is a non-contact digital technique for the industrialization of organic solar cells (OSC). It features high material utilization and roll-to-roll compatibility. Moreover, its droplet-to-droplet film formation makes it an ideal model to study the intrinsic morphology evolution of OSCs in high-boiling-point solvent systems. However, the slow evaporation of the high-boiling point solvents often induces premature acceptor aggregation and abnormal crystallization, resulting in inferior active layer morphology and compromised device performance. This work proposed a fullerene derivative-induced crystallization sequence regulation strategy in the inkjet-printed OSCs. It demonstrated that the fullerene derivatives strongly interacted with acceptors <i>via</i> synergistic electrostatic interactions, which inhibited the excessive acceptor aggregation and promoted the crystallization of the donor in a fiber morphology. In addition, this strategy showed good universality in a series of donor and acceptor systems. Due to the formation of a fiber morphology in the printed films, the efficiency of the inkjet-printed device improved from 15.28% to 17.37%. This work provided a practicable pathway to induce the fiber crystallization in the printed films, which would be a good strategy for improving the performance of the printed devices.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 10","pages":"5785 - 5793"},"PeriodicalIF":9.8,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176586","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

In situ reductive construction of a silicon-based polymer/indium alloy hybrid layer for stable lithium metal anodes in sulfide solid-state batteries 硫化电池稳定锂金属阳极硅基聚合物/铟合金杂化层的原位还原构建

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-06 DOI: 10.1007/s11426-026-3450-y

Kun Song, Qun Zhao, Xianbo Zhao, Siwu Li, Jun Liu, Haitao Chen, Weiwei Wu, Chuang Yu

{"title":"In situ reductive construction of a silicon-based polymer/indium alloy hybrid layer for stable lithium metal anodes in sulfide solid-state batteries","authors":"Kun Song, Qun Zhao, Xianbo Zhao, Siwu Li, Jun Liu, Haitao Chen, Weiwei Wu, Chuang Yu","doi":"10.1007/s11426-026-3450-y","DOIUrl":"10.1007/s11426-026-3450-y","url":null,"abstract":"<div><p>All-solid-state lithium-metal batteries that use sulfide electrolytes deliver high energy and improved safety, yet their practical use is impeded by poor chemical matching and mechanical failure at the sulfide/Li interface. Herein, on the lithium surface, we directly grow a thin indium-polysiloxane hybrid layer that contains in-situ-generated inorganic nanodomains (LiF, In/LiIn, LiSi<sub><i>x</i></sub>O<sub><i>y</i></sub>) formed by the co-reduction of In<sup>3+</sup> salts and polysiloxane’s fluorine/silicon-containing moieties (PFSIn-Li). Disclosed by a series of physicochemical and electrochemical characterizations, this hybrid layer, synthesized by a single-step solution-cast coating, is chemically inert to Li<sub>5.5</sub>PS<sub>4.5</sub>Cl<sub>1.5</sub> (LPSC) and mechanically robust against dendrite penetration, which simultaneously halts parasitic reactions, blocks dendrite growth and preserves intimate interfacial contact and rapid Li-ion transport during repeated plating/stripping. Resultantly, symmetric cells using PFSIn-Li sustain an ultrahigh critical current density of 3.5 mA cm<sup>−2</sup>, while PFSIn-Li∣LPSC∣LiNi<sub>0.7</sub>Co<sub>0.1</sub>Mn<sub>0.2</sub>O<sub>2</sub> full cells provide 129.8 mA h g<sup>−1</sup> at the initial cycle under 0.5 C and retain 82.3% of this capacity after 300 cycles, more than double the retention of bare-Li cells (43.0%). This scalable, low-cost polysiloxane-In<sup>3+</sup> chemistry furnishes a durable sulfide/lithium interface for next-generation, long-life, high-energy all-solid-state batteries.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 10","pages":"5600 - 5607"},"PeriodicalIF":9.8,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176745","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

Sterically shielded multi-resonance emitter via peripheral engineering for narrowband blue OLEDs with high efficiency and high color purity 通过外设工程的立体屏蔽多谐振发射极，用于窄带蓝色oled，具有高效率和高色纯度

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-06 DOI: 10.1007/s11426-026-3469-x

Xuan Zeng, Yunfeng Chai, Xiaofeng Luo, Dongdong Zhang, Lian Duan

{"title":"Sterically shielded multi-resonance emitter via peripheral engineering for narrowband blue OLEDs with high efficiency and high color purity","authors":"Xuan Zeng, Yunfeng Chai, Xiaofeng Luo, Dongdong Zhang, Lian Duan","doi":"10.1007/s11426-026-3469-x","DOIUrl":"10.1007/s11426-026-3469-x","url":null,"abstract":"<div><p>Indolo[3,2,1-<i>jk</i>]carbazole (ICz) based multi-resonance (MR) emitters hold great promise in the blue organic light-emitting diodes (OLEDs) for their superb narrowband emission, but the device performance is till limited by the severe aggregation-caused issues and excessively large energy gap. In this work, the peripheral engineering strategy is introduced to modulate the emission color and suppress molecular aggregation in ICz-MR emitters. The proof-of-concept emitters display a blue narrowband emission with red-shifted peak, extremely small full-width-at-half-maximum (FWHM) and near-unity photoluminescent quantum yield. Benefiting from the steric hindrance imparted by peripheral substituents, both target ICz-MR emitters exhibit enhanced aggregation resistance in the doped films, leading to basically consistent emissive properties over the practical mass-production concentration range (1 wt%–4 wt%). Consequently, the resulting OLEDs achieve ultra-narrowband blue electroluminescence with a peak of 457 nm and a small FWHM of 14 nm, corresponding to the CIE coordinates of (0.137, 0.078). Of particular note, high external quantum efficiencies (EQEs) of up to 10.4% and 17.8% are demonstrated for the target ICz-MR emitters in single- and two-stack devices, representing state-of-the-art performance for blue OLED based on the triplet-triplet annihilation host.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 10","pages":"5756 - 5761"},"PeriodicalIF":9.8,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176743","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

High-valent Mo-triggered lattice oxygen activity in high-entropy LDH enabling ampere-level anion exchange membrane water electrolysis 高熵LDH中高价mo触发的晶格氧活性使安培级阴离子交换膜电解成为可能

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-05 DOI: 10.1007/s11426-026-3460-4

Ruixin Tang, Xiaolin Li, Ying Li, Qiuyan Hao, Wenjie Huang, Limin Liang, Yida Deng, Xuerong Zheng, Hui Liu

{"title":"High-valent Mo-triggered lattice oxygen activity in high-entropy LDH enabling ampere-level anion exchange membrane water electrolysis","authors":"Ruixin Tang, Xiaolin Li, Ying Li, Qiuyan Hao, Wenjie Huang, Limin Liang, Yida Deng, Xuerong Zheng, Hui Liu","doi":"10.1007/s11426-026-3460-4","DOIUrl":"10.1007/s11426-026-3460-4","url":null,"abstract":"<div><p>The sluggish oxygen evolution reaction (OER) hinders efficient water splitting, with conventional adsorbate evolution mechanisms (AEM) facing inherent activity limitations. While the lattice oxygen activation mechanism (LOM) offers a promising pathway for enhanced activity, its practical implementation often grapples with stability issues, especially under industrial-level conditions. Herein, we report a novel ultrathin, bilayer high-entropy MoMnFeCoNiCu LDH nanosheet with a unique graphene-like wrinkled morphology. The strategic introduction of high-valent molybdenum triggers a fundamental shift in the OER mechanism from AEM to LOM, as unequivocally confirmed by <i>in situ</i> Raman spectroscopy and <sup>18</sup>O isotope gas-phase mass spectrometry. This unique Mo-triggered lattice oxygen activity leads to excellent performance: the catalyst achieves a remarkable 235 mV overpotential at 10 mA cm<sup>−2</sup> in alkaline media, and maintains 500 h stability at 200 mA cm<sup>−2</sup>. Crucially, when integrated into an anion exchange membrane water electrolyzer (AEMWE), our catalyst demonstrates excellent stability by maintaining consistent performance at an unprecedented 1.0 A cm<sup>−2</sup> for 200 h, highlighting its immense potential for industrial-scale water electrolysis.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 10","pages":"5617 - 5625"},"PeriodicalIF":9.8,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176343","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

Asymmetric metalδ+-metalδ− pairs for shifting reaction pathway to realize photocatalytic CO2-to-CH4 conversion 不对称金属δ+-金属δ−对转移反应途径实现光催化co2 - ch4转化

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-05 DOI: 10.1007/s11426-026-3554-6

Luyang Lv, Caiyu Wang, Wenxiu Fan, Zhongqin Dai, Nuo Zhang, Qin Wei, Xingchen Jiao

引用次数: 0

Catalyst-free dynamic covalent Knoevenagel/amine condensation for the synthesis and optimization of Imine-linked covalent organic frameworks Catalyst-free动态共价诺文葛耳/胺缩合合成和优化的Imine-linked共价有机框架

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-05 DOI: 10.1007/s11426-026-3426-0

Mengying Lei, Ge Yan, Danlei Zhou, Jingwen Zhang, Yao Lv, Zhiqiang Wang, Ruirui Gu, Sheng Dai, He Tian, Da-Hui Qu

{"title":"Catalyst-free dynamic covalent Knoevenagel/amine condensation for the synthesis and optimization of Imine-linked covalent organic frameworks","authors":"Mengying Lei, Ge Yan, Danlei Zhou, Jingwen Zhang, Yao Lv, Zhiqiang Wang, Ruirui Gu, Sheng Dai, He Tian, Da-Hui Qu","doi":"10.1007/s11426-026-3426-0","DOIUrl":"10.1007/s11426-026-3426-0","url":null,"abstract":"<div><p>With the rapid recent advances in constitutional dynamic chemistry (CDC), covalent organic frameworks (COFs), and dynamic polymers, the discovery and development of new dynamic covalent bonds have become a central priority, providing routes to novel architectures, controllable dynamic transformations, and emergent adaptive functions. Here, we report a facile, catalyst-free dynamic covalent condensation reaction between Knoevenagel derivatives (Kn) and amines that generate imines. Electron-withdrawing barbituric motifs intrinsically activate the carbon electrophile and lower the activation barrier relative to conventional aldehyde-amine condensations. The equilibrium constant (<i>K</i><sub>eq</sub>) can be effectively tuned across three orders of magnitude by modulating the push-pull conjugation within the Kn reactants. We demonstrate that this reaction enables gram-scale COF synthesis under mild, catalyst-free, non-sealed conditions. Introducing electron-donating substituents on the Kn monomers effectively improves framework crystallinity and porosity. This Knoevenagel/amine condensation approach provides a clean, efficient, and tunable dynamic covalent platform for the development of COFs and constitutional dynamic libraries/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 10","pages":"5734 - 5739"},"PeriodicalIF":9.8,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176342","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

Spreads like butter, sticks like a barnacle 像黄油一样涂抹，像藤壶一样粘在一起

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-04 DOI: 10.1007/s11426-026-3563-9

Jingyu He, Yuzhe Gu, Yang Li

引用次数: 0

Engineering crosslinkers of photonic hydrogels for drug-resistant bacteria detection 用于耐药细菌检测的光子水凝胶工程交联剂

1区化学

Science China Chemistry Pub Date : 2026-08-04 DOI: 10.1007/s11426-026-3440-y

Xiaoning Sun, Zixin Shu, Hongxiang Li, Chunmei Ding, Meng Qin, Jianshu Li

引用次数: 0

Tunable morphologies of polypseudorotaxanes via hierarchical self-assembly for enhanced NIR photothermal conversion in water 通过层次自组装提高水中近红外光热转换的聚聚聚羟基紫杉烷的可调形貌

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-03 DOI: 10.1007/s11426-026-3491-7

Wanni Yang, Fan Cao, Honghong Duan, Cheng Chen, Jiahao Gao, Feng Su, Liping Cao

{"title":"Tunable morphologies of polypseudorotaxanes via hierarchical self-assembly for enhanced NIR photothermal conversion in water","authors":"Wanni Yang, Fan Cao, Honghong Duan, Cheng Chen, Jiahao Gao, Feng Su, Liping Cao","doi":"10.1007/s11426-026-3491-7","DOIUrl":"10.1007/s11426-026-3491-7","url":null,"abstract":"<div><p>Hierarchical self-assembly is a well-established strategy in nature for fabricating materials with complex structures and advanced functionalities. The morphology of these materials is crucial in determining the properties and performance. In this study, polypseudorotaxanes (PPRs) were constructed using a tetraphenylethene-based cationic cage (<b>H</b>) as the wheel and a polyethylene glycol-linked perylene diimide (PDI) derivative (<b>G</b>) as the axle. Adjusting the molar ratio of <b>H/G</b> yielded PPRs with tunable balances between rigidity and flexibility, as well as hydrophilicity and hydrophobicity, which underwent hierarchical self-assembly in water to form superstructures with tunable morphologies, including linear nanorods, rhombic nanosheets, and hexagonal nanosheets at the nano (meso)-scale. Moreover, the resulting PPR-based materials could be controllably reduced to radical anions (PDI<sup>·−</sup>)-containing assembly and remained stable thereafter. This stability endowed the materials with enhanced near-infrared photothermal conversion efficiency and selective inhibitory activity against <i>E. coli</i>. This PPR-based hierarchical self-assembly provides a robust platform for constructing nano(meso)-structures with tunable morphologies and excellent photosensitive reduction properties, which holds great promise for prospective applications in photothermal sterilization and antitumor therapy.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 10","pages":"5740 - 5748"},"PeriodicalIF":9.8,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176692","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

Wavelength-switchable directionality in an azo-derived molecular motor 偶氮分子马达中波长可切换的方向性

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-07-31 DOI: 10.1007/s11426-026-3567-5

Ruirui Gu, Da-Hui Qu, He Tian

引用次数: 0