Science China Chemistry最新文献_第2页

A simplified synthetic nitrifying enzyme for efficient ammonia-nitrate conversion under mild conditions 一种在温和条件下高效转化氨硝的简化合成硝化酶

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-06-22 DOI: 10.1007/s11426-025-3377-1

Yuanzhi Zhong, Lihua Mo, Li Wang, Xudan Chen, Ling Wang, Xiao-Yi Yi, Zhimou Yang

{"title":"A simplified synthetic nitrifying enzyme for efficient ammonia-nitrate conversion under mild conditions","authors":"Yuanzhi Zhong, Lihua Mo, Li Wang, Xudan Chen, Ling Wang, Xiao-Yi Yi, Zhimou Yang","doi":"10.1007/s11426-025-3377-1","DOIUrl":"10.1007/s11426-025-3377-1","url":null,"abstract":"<div><p>Nitric acid is among the most important industrial chemicals, yet its large-scale production consumes vast amounts of fossil energy. In nature, nitrifying bacteria oxidize ammonia (NH<sub>3</sub>) to nitrate (NO<span>\u0000 <sup>−</sup><sub>3</sub>\u0000 \u0000 </span>) via two separate microorganisms—ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB). Here, we report a conceptual synthetic nitrifying enzyme that mimics this biological process under mild conditions but employs a single photocatalyst rather than multiple catalysts as used in both nature and industry. The synthetic enzyme demonstrates high selectivity (99%) for NO<span>\u0000 <sup>−</sup><sub>3</sub>\u0000 \u0000 </span> formation and operates at room temperature and 1 atm pressure. This simplified design provides a biomimetic yet efficient route for ammonia oxidation and may inspire future development of sustainable synthetic nitrification systems for industrial applications.</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":"4498 - 4504"},"PeriodicalIF":9.8,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695176","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

Ultrahigh CO2 photoreduction efficiency over SrTiO3 enabled by graphene quantum dot-mediated proton/electron transfer 石墨烯量子点介导的质子/电子转移实现了SrTiO3上超高的CO2光还原效率

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-06-22 DOI: 10.1007/s11426-025-3366-0

Zhende Wu, Jing Xie, Jindou Hu, Zhenjiang Lu, Yali Cao

{"title":"Ultrahigh CO2 photoreduction efficiency over SrTiO3 enabled by graphene quantum dot-mediated proton/electron transfer","authors":"Zhende Wu, Jing Xie, Jindou Hu, Zhenjiang Lu, Yali Cao","doi":"10.1007/s11426-025-3366-0","DOIUrl":"10.1007/s11426-025-3366-0","url":null,"abstract":"<div><p>The efficiency of proton-coupled electron transfer (PCET) critically governs the reaction pathway selectivity and catalytic performance in photocatalytic CO<sub>2</sub> reduction. However, the slow PCET kinetics and high energy barriers of key intermediates hinder the achievement of high generation efficiency and selectivity of the product. Herein, the regulation of the surface oxygen vacancy (V<sub>o</sub>) concentration was achieved by introducing graphene quantum dots (GQDs) into the SrTiO<sub>3</sub> catalytic system (GQDs/STO). More importantly, the formation of Ti–O–C bonds between STO and GQDs further promoted the PCET process during CO<sub>2</sub> reduction, thereby significantly enhancing the reaction kinetics. Therefore, 3%GQDs/STO achieves remarkable CO production rates of 9500 µmol g<sup>−1</sup> h<sup>−1</sup>, which is 187 times higher than that of pure STO (51.2 µmol g<sup>−1</sup> h<sup>−1</sup>). Moreover, CO selectivity and electron utilization efficiency reach 99.8% and 99.2%, respectively, outperforming most previous photocatalysts. Experimental and theoretical investigations confirm that the synergistic effects of V<sub>o</sub> electron traps and Ti–O–C bonds not only modulate the speciation of critical intermediates but also significantly reduce the activation energy barrier of the rate-determining step (*COOH to *CO). This work offers novel insights and ideas for developing efficient catalysts with highly effective photocatalytic CO<sub>2</sub> reduction.</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":"4406 - 4415"},"PeriodicalIF":9.8,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695179","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 principle for high safety and long cycle over 50 Ah sodium-ion batteries with wide operation temperature 高安全性、长周期、宽工作温度、50 Ah以上钠离子电池的设计原理

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-06-09 DOI: 10.1007/s11426-025-3449-1

Yichi Zhang, Min Hou, Guang-Yu Zhang, Tianjiao Bai, Jun Ma, Hui Cao, Jingqiang Wang, Zhen-Bo Wang, Yao Xiao

引用次数: 0

Recent progress in polysaccharide-based materials design toward stable Zn anodes 稳定锌阳极的多糖基材料设计的最新进展

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-06-09 DOI: 10.1007/s11426-025-3350-7

Yanbo Zhu, Yuyang Yan, Haodong Zhang, Jinping Zhou

{"title":"Recent progress in polysaccharide-based materials design toward stable Zn anodes","authors":"Yanbo Zhu, Yuyang Yan, Haodong Zhang, Jinping Zhou","doi":"10.1007/s11426-025-3350-7","DOIUrl":"10.1007/s11426-025-3350-7","url":null,"abstract":"<div><p>Aqueous zinc batteries are emerging as one of the powerful candidates for large-scale energy storage due to their inherent safety, high theoretical capacity (820 mA h g<sup>−1</sup>), and low cost. However, challenges such as Zn dendrite growth, parasitic side reactions, and sluggish Zn<sup>2+</sup> transport impede their commercialization. In recent years, polysaccharide-based materials have attracted increasing attention as sustainable and versatile platforms for addressing these issues, due to their tunable architectures, rich surface chemistry, and eco-friendliness. This review systematically outlines the fundamental origins of poor reversibility in Zn anodes, focusing on dendrite formation and side reactions. We then introduce representative natural polysaccharides, such as cellulose, chitin, and chitosan, and highlight their key structural characteristics, including functional groups, chain conformations, and hierarchical assemblies. Subsequently, recent progress in stabilizing Zn anodes using polysaccharide-based materials is comprehensively discussed, covering artificial interfacial layers, functional separators, hydrogel electrolytes, and electrolyte additives, with special attention to their underlying working mechanisms. Finally, we present an outlook on the remaining challenges and prospects of polysaccharide-based materials in Zn anode stabilization, aiming to inspire further research and accelerate their practical applications.</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":"4223 - 4242"},"PeriodicalIF":9.8,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695485","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

“Bottom-up” construction of metal nanoparticle-encapsulated porous organic polymers “自下而上”构建金属纳米颗粒包封的多孔有机聚合物

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-06-09 DOI: 10.1007/s11426-025-3382-8

Ke Chen, Wei Zhang, Weibin Qiu, Zhenlan Zou, Ling Zhu, San-Yuan Ding, Yong Zhang

{"title":"“Bottom-up” construction of metal nanoparticle-encapsulated porous organic polymers","authors":"Ke Chen, Wei Zhang, Weibin Qiu, Zhenlan Zou, Ling Zhu, San-Yuan Ding, Yong Zhang","doi":"10.1007/s11426-025-3382-8","DOIUrl":"10.1007/s11426-025-3382-8","url":null,"abstract":"<div><p>Metal nanoparticles (MNPs) encapsulated in porous supports constitute an important class of heterogeneous catalysts. However, achieving synergistic stabilization of ultrafine MNPs while preserving the porous architecture of the support remains a significant challenge in material design. In this study, we developed a “bottom-up” strategy using cage-stabilized MNPs as functional building blocks to fabricate MNP-encapsulated porous organic polymers (POPs). Initially, ultrasmall MNPs (Pd, Ru, or Rh) were confined within the internal cavity of organic cages. Subsequent hypercrosslinking polymerization of the organic cage’s external sites successfully yielded a porous polymer framework. The as-prepared MNP@POP composite catalysts exhibited high surface areas and showed excellent catalytic activity in the Suzuki-Miyaura coupling reaction and reduction of 4-nitrophenol. Significantly, these materials demonstrate high stability and recyclability while maintaining their catalytic activity without degradation. This “bottom-up” strategy will pioneer new methodologies to design and prepare MNP@POP composites for heterogeneous catalytic applications.</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":"4590 - 4597"},"PeriodicalIF":9.8,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695484","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 advances in organic synthesis with CO2 CO2有机合成的新进展

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-06-09 DOI: 10.1007/s11426-026-3468-7

Si-Shun Yan, Chaorong Qi, Yong-Yuan Gui, Hong-Ru Li, Yanwei Wang, Wei Zhang, Lei Song, Wenfang Xiong, Jian-Heng Ye, Youai Qiu, Wenzhen Zhang, Huanfeng Jiang, Xiao-Bing Lu, Liang-Nian He, Da-Gang Yu

引用次数: 0

Unlocking the near-infrared electroluminescence of the molecular ruby 解开红宝石分子的近红外电致发光

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-06-08 DOI: 10.1007/s11426-025-3344-6

Qing-Jun Pan, Zhong-Qiu Li, Dian-Xue Ma, Zhong-Liang Gong, Chuang Zhang, Stefan Bernhard, Jiannian Yao, Yu-Wu Zhong

{"title":"Unlocking the near-infrared electroluminescence of the molecular ruby","authors":"Qing-Jun Pan, Zhong-Qiu Li, Dian-Xue Ma, Zhong-Liang Gong, Chuang Zhang, Stefan Bernhard, Jiannian Yao, Yu-Wu Zhong","doi":"10.1007/s11426-025-3344-6","DOIUrl":"10.1007/s11426-025-3344-6","url":null,"abstract":"<div><p>The invention of the Cr(III) complex [Cr(ddpd)<sub>2</sub>]<sup>3+</sup> (ddpd is <i>N,N′</i>-dimethyl-<i>N,N′</i>-dipyrid-2-ylpyridine-2,6-diamine), referred to as the “molecular ruby”, has prompted a notable surge in the investigation of photofunctional non-precious metal complexes. To date, most efforts focus on the photoluminescence properties of these complexes, including [Cr(ddpd)<sub>2</sub>]<sup>3+</sup> and related Cr(III) complexes. This work demonstrates the efficient electroluminescence of [Cr(ddpd)<sub>2</sub>]<sup>3+</sup> achieved by doping it into an Ir(III) complex host in a light-emitting electrochemical cell. Narrowband near-infrared electroluminescence peaking at 778 nm (full width at half maximum, FWHM = 25 nm) with a maximum external quantum efficiency of 0.78% has been realized. Efficient host-guest energy transfer and the suppression of the potential triplet-triplet annihilation process among guest molecules are crucial for the generation of the near-infrared electroluminescence.</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":"4521 - 4526"},"PeriodicalIF":9.8,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695689","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

Eutectogel based on biomimetic heterophase liquid-locking design enables ultra-stable human-machine interaction interfaces 基于仿生异相锁液设计的eutectol实现了超稳定的人机交互界面

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-06-05 DOI: 10.1007/s11426-025-3365-1

Baijie Cheng, Ruixue Wang, Peipei Xu, Xueying Wu, Zhenhao Xia, Yexi Jin, Hongyao Xu, Shanyi Guang

{"title":"Eutectogel based on biomimetic heterophase liquid-locking design enables ultra-stable human-machine interaction interfaces","authors":"Baijie Cheng, Ruixue Wang, Peipei Xu, Xueying Wu, Zhenhao Xia, Yexi Jin, Hongyao Xu, Shanyi Guang","doi":"10.1007/s11426-025-3365-1","DOIUrl":"10.1007/s11426-025-3365-1","url":null,"abstract":"<div><p>Conductive gel-based flexible wearable devices have emerged as transformative platforms for emerging applications in human-machine interaction. However, environmental humidity fluctuations can impair material performance through mechanisms such as water uptake-induced swelling/dehydration-induced embrittlement, as well as signal baseline drift. In this study, inspired by the strong hydration mechanism of natural moisturizing factors (NMF) and the sebum barrier in the skin, a biomimetic heterophase liquid-locking (BHL) design is proposed. This design precisely recapitulates the dual protective characteristics of skin. An internal hydrophilic phase, formed by zwitterionic polymers, achieves NMF-like high moisturization via hydrogen bonding/ion-dipole interactions. Meanwhile, a stable hydrophobic phase, mimicking the sebum barrier, is constructed on the surface through the covalent grafting of nanoscale hydrophobic polyhedral oligomeric silsesquioxane (POSS). The resulting gel exhibits ultra-stable mechanical and sensing performance over an ultra-wide humidity range (RH = 10%–90%), with less than 5% variation over 108 days. Furthermore, the eutectogel possesses softness, self-healing capability, high transparency, a wide temperature operating window, and ionic conductivity. By integrating gel-based electrode arrays and devices, human-machine collaboration and virtual reality (VR)-based human-machine interaction are realized. Moreover, an intelligent human-machine interaction system developed by further incorporating deep learning technology achieves a recognition rate of up to 99.68% for various gesture signals.</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":"4607 - 4617"},"PeriodicalIF":9.8,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695340","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

Synergistic regulation of ground and excited-state dipoles to promote charge polarization for ternary organic solar cells by adding fluorinated benzotriazole-based nonfullerene acceptors 通过添加氟化苯并三唑基非富勒烯受体，协同调节基态和激发态偶极子以促进三元有机太阳能电池的电荷极化

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-06-03 DOI: 10.1007/s11426-026-3569-x

Tingting Dai, Ning Sun, Xinyue Guo, Yuhan Meng, Zewei Jin, Hongjun Cheng, Mengzhen Du, Chengwei Shan, Aung Ko Ko Kyaw, Yan Lei, Erjun Zhou

{"title":"Synergistic regulation of ground and excited-state dipoles to promote charge polarization for ternary organic solar cells by adding fluorinated benzotriazole-based nonfullerene acceptors","authors":"Tingting Dai, Ning Sun, Xinyue Guo, Yuhan Meng, Zewei Jin, Hongjun Cheng, Mengzhen Du, Chengwei Shan, Aung Ko Ko Kyaw, Yan Lei, Erjun Zhou","doi":"10.1007/s11426-026-3569-x","DOIUrl":"10.1007/s11426-026-3569-x","url":null,"abstract":"<div><p>Charge polarization plays a crucial role in barrier-free dissociation of charge-transfer states at the donor/acceptor interface, thereby profoundly influencing the performance of organic solar cells (OSCs). In this study, a molecular design strategy is proposed to achieve charge polarization by synergistically regulating the ground-state dipole moments (<i>μ</i><sub>g</sub>) and excited-state dipole moments (<i>μ</i><sub>e</sub>) of the molecule. A nonfullerene acceptor (NFA), BTA506, is synthesized by introducing four fluorine atoms on the benzene ring of the side chain attached to the central D unit of A<sub>2</sub>-A<sub>1</sub>-D-A<sub>1</sub>-A<sub>2</sub> type F-BTA5. This fluorination strategy induces distinct charge polarization effects and BTA506 exhibits significantly increased <i>μ</i><sub>g</sub> and <i>μ</i><sub>e</sub>. When incorporated into the host active layer of D18:L8-BO, the ternary combination exhibits a significantly enhanced charge polarization effect, which effectively reduces electron-hole Coulombic attraction and promotes spatial separation of electrons and holes. Benefiting from the enhanced charge polarization effect, the BTA506-based ternary OSCs exhibit efficient free charge generation and reduced voltage loss, ultimately achieving a record-breaking PCE of 20.13%. This work highlights the regulation of <i>μ</i><sub>g</sub> and <i>μ</i><sub>e</sub> as a promising strategy for designing highly efficient NFA molecules and underscores the critical role of charge polarization in the performance of OSCs.</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":"4535 - 4543"},"PeriodicalIF":9.8,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695082","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

Trace copolymer-enabled fast ion transport and hybrid interphase for dendrite-free zinc metal anodes at 85.6% depth-of-discharge 在85.6%放电深度下，无枝晶锌金属阳极的痕量共聚物激活的快速离子传输和杂化界面

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-05-27 DOI: 10.1007/s11426-025-3318-x

Mengke Peng, Guanting Wang, Chun Xue, Fei Wang, Juan Du, Youan Ji, Kai Yuan, Aibing Chen, Yiwang Chen

{"title":"Trace copolymer-enabled fast ion transport and hybrid interphase for dendrite-free zinc metal anodes at 85.6% depth-of-discharge","authors":"Mengke Peng, Guanting Wang, Chun Xue, Fei Wang, Juan Du, Youan Ji, Kai Yuan, Aibing Chen, Yiwang Chen","doi":"10.1007/s11426-025-3318-x","DOIUrl":"10.1007/s11426-025-3318-x","url":null,"abstract":"<div><p>Zinc (Zn) metal anodes for aqueous batteries suffer from dendrite growth, hydrogen evolution and corrosion, limiting their stability and utilization rate. Here, a low-cost and highly soluble copolymer additive (poly(acrylamide-co-diallyldimethylammonium chloride), PAD) is introduced into the electrolyte to achieve long-term and highly reversible Zn<sup>2+</sup> plating/stripping. Specifically, the zincophilic amide segments facilitate Zn<sup>2+</sup> conduction via coordination interaction, while the zincophobic quaternary ammonium segments promote Zn<sup>2+</sup> migration through electrostatic repulsion. Such synergistic interaction establishes fast ion transport channels in the electrolyte with a high Zn<sup>2+</sup> transfer number of 0.72. Moreover, PAD spontaneously constructs a bilayer interphase at the electrode/electrolyte interface, including a protective outer layer rich in positive charges and amide groups, as well as an organic-inorganic hybrid inner layer. Such a dual structure accelerates the Zn<sup>2+</sup> desolvation, homogenizes the Zn<sup>2+</sup> flux, and hinders the direct contact between water molecules and the Zn metal anode. Consequently, the Zn//Zn cells with a trace amount (0.5 wt%) of PAD operate stably for 5400 h and withstand an ultrahigh depth-of-discharge of 85.6% for over 1300 h.</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":"4560 - 4569"},"PeriodicalIF":9.8,"publicationDate":"2026-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695282","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