Science China Chemistry最新文献_第2页

Beyond the activity-stability trade-off in propane dehydrogenation 丙烷脱氢过程中活性与稳定性的权衡

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-20 DOI: 10.1007/s11426-026-3746-x

Xintong Lyu, Landong Li

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Alternating electrodes for high-rate, durable ammonia electrolysis 用于高速率、持久的氨电解的交变电极

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-20 DOI: 10.1007/s11426-026-3747-2

Xueda Ding, Mingchuan Luo

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Regulating the hydrogenation pathway for selective photocatalytic CO2-to-CH4 调控选择性光催化CO2-to-CH4的加氢途径

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-20 DOI: 10.1007/s11426-026-3523-3

Chengyun Tang, Yu-Ang Wang, Chunshuang Yan, Jingwen Meng, Yuran Wang, Ziqi Wang, Xiaoli Jin, Shijie Chen, Chu Zhang, Yumin Qian, Chade Lv

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Interface-confined etching towards mesoporous two-dimensional MoO3−x for high-performance planar supercapacitors 面向介孔二维MoO3−x的高性能平面超级电容器界面约束刻蚀

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-20 DOI: 10.1007/s11426-025-3315-5

Haofeng Sun, Wenjie Li, Xiaolin Tai, Xinyu Sun, Minghao Wang, Yelun Cong, Muyuan Peng, Haofeng Zhang, Kai Huang, Yang Liu, Yuqiao Guo, Min Zhou, Jing Peng, Yi Xie, Changzheng Wu

{"title":"Interface-confined etching towards mesoporous two-dimensional MoO3−x for high-performance planar supercapacitors","authors":"Haofeng Sun, Wenjie Li, Xiaolin Tai, Xinyu Sun, Minghao Wang, Yelun Cong, Muyuan Peng, Haofeng Zhang, Kai Huang, Yang Liu, Yuqiao Guo, Min Zhou, Jing Peng, Yi Xie, Changzheng Wu","doi":"10.1007/s11426-025-3315-5","DOIUrl":"10.1007/s11426-025-3315-5","url":null,"abstract":"<div><p>Two-dimensional transition metal oxides (2D TMOs) have drawn broad interest owing to their great potential for catalysis and energy storage applications, but suffered restacking and poor conductivity. Porous and conductive nanosheets are highly required, while suffering from inefficient synthesis. Here, we demonstrate interface-confined etching to synthesize mesoporous 2D metal oxides. Ultrathin porous MoO<sub>3−<i>x</i></sub> nanosheets are successfully synthesized with 2–3 nm thickness and abundant 3–5 nm diameter mesopores, ensuring high specific surface area and 10<sup>9</sup>-time improved conductivity when compared to the pristine sample. Consequently, 2D MoO<sub>3−<i>x</i></sub> delivers ultrahigh volumetric specific capacitance of 2003.2 F cm<sup>−3</sup> and energy density of 94.1 Wh L<sup>−1</sup> at high power density of 1120 W L<sup>−1</sup>, demonstrating great promise for energy storage. This work provides a promising way to synthesize 2D materials for high-performance energy storage.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 9","pages":"5004 - 5010"},"PeriodicalIF":9.8,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986891","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}

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Crafting tetrahydronaphthalene or tetrahydroquinoline scaffolds by oxidative coupling of C(sp2)–H/C(sp3)–Si bond 通过C(sp2) -H /C(sp3) -Si键氧化偶联制备四氢萘或四氢喹啉支架

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-17 DOI: 10.1007/s11426-025-3356-4

Qian Zhang, Yuling Liu, Tingting Dan, Mingyu Yang, Zhang-Jie Shi

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Asymmetric counteranion-directed Lewis acid catalysis for the reaction of N,O-aminals via intractable iminium ion intermediates 不对称反阴离子导向路易斯酸通过难处理的铝离子中间体催化N， o -动物反应

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-17 DOI: 10.1007/s11426-025-3407-3

Yu-Hao Wang, Zi-Qi Yi, Subarna Jyoti Kalita, Bing Yi, Zhen-Ni Zhao, Yi-Chao Li, Yi-Long Wang, Shū Kobayashi, Yi-Yong Huang

{"title":"Asymmetric counteranion-directed Lewis acid catalysis for the reaction of N,O-aminals via intractable iminium ion intermediates","authors":"Yu-Hao Wang, Zi-Qi Yi, Subarna Jyoti Kalita, Bing Yi, Zhen-Ni Zhao, Yi-Chao Li, Yi-Long Wang, Shū Kobayashi, Yi-Yong Huang","doi":"10.1007/s11426-025-3407-3","DOIUrl":"10.1007/s11426-025-3407-3","url":null,"abstract":"<div><p>Despite notable advances, the acyclic alkyl iminium ion intermediates have not yet been tamed in the asymmetric aza-Friedel-Crafts reaction, owing to the paucity of efficient catalytic strategies to address the enantiodiscrimination challenge. Herein, a novel strategy to leverage asymmetric counteranion-directed Lewis acid catalysis with a silver phosphate is established. The intractable acyclic alkyl iminium ion intermediates are generated from bench-stable acyclic aliphatic <i>N</i>,<i>O</i>-aminals via α-fragmentation, which are stabilized by the chiral phosphate counteranion through the formation of a hydrogen-bonded ion pair. A variety of indoles have been employed in this catalytic strategy with the catalyst loading as low as 2 mol%, furnishing 3-indolyl methanamines with potential antiproliferative activities (IC<sub>50</sub> = 65.25 µM against 4T1 breast cancer cells) and versatile synthetic utilities. Density functional theory (DFT) calculations revealed that the enantioselectivity originates from the kinetically and thermodynamically favorable <i>Re</i>-face attack of indole on the <i>Re</i>-face of the iminium ion, assisted by C–H⋯π interactions within the hydrogen-bonded ion pair transition state. Beyond indoles, precise stereochemical control has also been achieved when smaller-sized pyrroles react with resonance-stabilized aryl iminium ion intermediates.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 9","pages":"5161 - 5170"},"PeriodicalIF":9.8,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986755","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}

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Photocatalytic access to α-aminonitriles and α-cyano amides via 1,5-hydrogen atom transfer 通过1,5-氢原子转移光催化获得α-氨基腈和α-氰基酰胺

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-13 DOI: 10.1007/s11426-025-3355-9

Kaiyao Yuan, He Zhang, Jianzhong Lu, Beibei Yi, Yangkun Lin, Xuanyu Yang, Hui Li, W M W W Kandegama, Guozhu Zhang, Rui Guo

{"title":"Photocatalytic access to α-aminonitriles and α-cyano amides via 1,5-hydrogen atom transfer","authors":"Kaiyao Yuan, He Zhang, Jianzhong Lu, Beibei Yi, Yangkun Lin, Xuanyu Yang, Hui Li, W M W W Kandegama, Guozhu Zhang, Rui Guo","doi":"10.1007/s11426-025-3355-9","DOIUrl":"10.1007/s11426-025-3355-9","url":null,"abstract":"<div><p>α-Aminonitriles and α-cyano amides are valuable structural motifs and versatile precursors with broad applications in medicinal and synthetic chemistry. Despite substantial progress, the development of general, mild, and highly selective methods for the synthesis of α-aminonitriles and α-cyanoamides via catalytic C–H cyanation remains challenging. Herein, we report a photoinduced, mild, and general strategy for α-C(sp<sup>3</sup>)–H cyanation of both cyclic and acyclic aliphatic amines under transition-metal-free and redox-neutral conditions. Furthermore, by integrating photoredox with copper catalysis, we establish an efficient approach to α-cyano amides, with the copper complex functioning as both photosensitizer and cross-coupling catalyst. These protocols exhibit excellent chemo-, regio-, and diastereoselectivity, broad substrate scope, and high functional group tolerance. Their versatility is further demonstrated through late-stage modification of bioactive molecules, underscoring the potential of these strategies for streamlined access to structurally complex cyano-containing compounds.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"69 9","pages":"5148 - 5156"},"PeriodicalIF":9.8,"publicationDate":"2026-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986221","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

From structural chirality to collective quantum coherence: the first room-temperature chiral superfluorescence 从结构手性到集体量子相干性：第一个室温手性超荧光

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-12 DOI: 10.1007/s11426-026-3743-9

Yaqiong Hu, Wei Zhang, Xueyuan Chen

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Constructing electron-deficient octahedral cobalt active sites in roselike Ce-Co3O4 for ultrafast Fenton-like catalysis via electron transfer pathway 在玫瑰状Ce-Co3O4中构建缺电子八面体钴活性位点，通过电子转移途径进行超快类芬顿催化

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-11 DOI: 10.1007/s11426-026-3481-1

Yuchen Yang, Guoying Tan, Xiaoxia Wu, Yujun Ju, Zhengze Jia, Ziang Li, Haiyan An, Shiyu Xie, Yu Long, Pingru Su, Fengjuan Chen, Yu Tang

{"title":"Constructing electron-deficient octahedral cobalt active sites in roselike Ce-Co3O4 for ultrafast Fenton-like catalysis via electron transfer pathway","authors":"Yuchen Yang, Guoying Tan, Xiaoxia Wu, Yujun Ju, Zhengze Jia, Ziang Li, Haiyan An, Shiyu Xie, Yu Long, Pingru Su, Fengjuan Chen, Yu Tang","doi":"10.1007/s11426-026-3481-1","DOIUrl":"10.1007/s11426-026-3481-1","url":null,"abstract":"<div><p>Electron transfer process (ETP) represents an efficient and robust pathway in peroxymonosulfate (PMS) activation, yet its practical application is limited by sluggish kinetics, inefficient electron transport, and constrained catalyst suitability. Herein, we design a roselike Ce-doped Co<sub>3</sub>O<sub>4</sub> catalyst (RL Ce-Co<sub>3</sub>O<sub>4</sub>) with electron-deficient Co sites to enable efficient PMS activation by a selective ETP pathway in spinel oxide. Atomic-level Ce incorporation in Co<sub>3</sub>O<sub>4</sub> induces electron delocalization of octahedral cobalt (Co<sub>Oh</sub>) via 3d-2p-4f coupling orbital, constructing electron-deficient Co<sub>Oh</sub> active sites with depopulated 3d orbitals. The roselike architecture improves the accessibility of active sites to further promote the reaction kinetics. Mechanistic insight reveals that the electron-deficient Co<sub>Oh</sub> sites enhance the adsorption and stabilization towards both PMS and bisphenol A (BPA) by intensified Co-O covalent interactions. Meanwhile, Ce doping improves the electrical conductivity of Co<sub>3</sub>O<sub>4</sub>, promoting rapid electron transfer from BPA to PMS* via a catalyst bridge, thereby disrupting the conventional Co<sup>2+</sup>/Co<sup>3+</sup> redox cycling and establishing a catalyst-mediated ETP pathway. Synergistically, RL Ce-Co<sub>3</sub>O<sub>4</sub> exhibits superior performance, achieving 99.9% BPA degradation within 3 min with a first-order knetic constant (<i>k</i><sub>obs</sub>) of 1.61 min<sup>−1</sup>, and ultra-long-term stability (106 h) in a scaled-up reactor system. This work provides an innovative concept to unlock a selective, accelerated ETP pathway in spinel oxides.</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":"5698 - 5709"},"PeriodicalIF":9.8,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176592","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}

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Constructing dual-modality theranostic agents by fusing π-systems and σ-aromatic boron clusters: enhanced phototherapy and boron neutron capture therapy π-体系与σ-芳香硼团簇融合构建双模治疗剂：强化光疗与硼中子俘获治疗

IF 9.8 1区化学

Science China Chemistry Pub Date : 2026-08-07 DOI: 10.1007/s11426-026-3473-8

Jibo Zong, Zhaofeng Sun, Liyan Wang, Hongjian Zhang, Wenli Ma, Chang-Sheng Lu, Zhihui Sun, Zhen Li, Hong Yan, Deshuang Tu

{"title":"Constructing dual-modality theranostic agents by fusing π-systems and σ-aromatic boron clusters: enhanced phototherapy and boron neutron capture therapy","authors":"Jibo Zong, Zhaofeng Sun, Liyan Wang, Hongjian Zhang, Wenli Ma, Chang-Sheng Lu, Zhihui Sun, Zhen Li, Hong Yan, Deshuang Tu","doi":"10.1007/s11426-026-3473-8","DOIUrl":"10.1007/s11426-026-3473-8","url":null,"abstract":"<div><p>The development of innovative theranostic platforms that enable advanced therapies is crucial for advancing cancer treatment. Herein, we propose a molecular design integrating a π-conjugated luminogen with a boron cluster to create a hybrid agent for the combined and enhanced application of photothermal therapy (PTT) and boron neutron capture therapy (BNCT). As a proof of concept, we covalently anchored a <i>nido</i>-carborane cluster to a cyanine dye, constructing IRbiotin-nCB. Studies reveal the <i>nido</i>-carborane acts as an efficient photo-induced electron transfer (PET) donor, quenching fluorescence and enhancing the photothermal conversion efficiency to 33.9%—a significant improvement over the 23.9% efficiency of the parent cyanine. Furthermore, when evaluated as a boron delivery agent <i>in vivo</i>, IRbiotin-nCB demonstrated exceptional performance. At a low dose of 15 mg/kg, it achieved high tumor boron accumulation of 32.66 ± 0.85 µg/g, with superior selectivity evidenced by a tumor-to-blood ratio of 14.71 and tumor-to-normal tissue ratios consistently greater than 3. These values surpass the requisite thresholds for effective BNCT. By integrating optical activity for PTT and neutron capture capacity for BNCT within a single molecule, this hybrid platform enables a powerful synergistic therapy leading to complete tumor ablation, presenting a promising strategy for future cancer theranostics.</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":"5722 - 5733"},"PeriodicalIF":9.8,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176585","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