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Multicomponent supramolecular nanoaggregates with co-emissive electrochemiluminescence

Matter 2025年

作者： Dai, Li Fang, Jinglong Jiang, Tong Li, Qi Ren, Xiang Li, Yuyang Wu, Dan Ma, Hongmin Lei, Jianping Ju, Huangxian Wei, Qin Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection School of Chemistry and Chemical Engineering University of Jinan Jinan250022 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of Sciences Beijing100190 China University of Chinese Academy of Sciences Beijing100049 China State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical Engineering Nanjing University Nanjing210023 China

The development of particulate electrochemiluminescence (ECL) emitter with high efficiency is challenging due to either the low electrochemical reaction efficiency for nanoparticles with larger sizes or the low quantum efficiency of molecular luminophores in aggregated forms. While the synthesis of aggregation-induced electrochemiluminescence (AI-ECL) luminophores with high quantum efficiency requires complicated procedures, a supramolecular strategy is proposed for constructing multicomponent nanoaggregates with co-emissive ECL. Aggregation-induced emission (AIE) active tetraphenylethylene (TPE) was used as a molecular matrix to disperse the aggregation-caused quenching (ACQ) luminophores with high quantum efficiency, boron dipyrromethene (BDP), and rhodamine B (RhB). Co-emissions of both molecular matrix and doped luminophores were achieved. The synergistic effects of the supramolecular interactions for enhancement of emission efficiency were confirmed by spectral measurement and molecular dynamic simulation. Small nanoaggregates with higher ECL efficiency were prepared on microfluidic chips and were used as nanolabels for sensitive ECL immunoassays. © 2025 Elsevier Inc.

关键词： Nanoclay

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Biosorbent silver nanoparticles decorated coffee-ground waste composite for cleaning water and antimicrobial applications

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Environmental Science and Pollution Research 2025年第5期32卷 2280-2297页

作者： Al-Ghamdi, Azza A. Ibrahim, Sherif M. Lu, Xingmei Xin, Jiayu El-Sayed, Ibrahim El-Tantawy Galhoum, Ahmed A. Wageh, Swelm. Department of Chemistry College of Science Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam31441 Saudi Arabia Renewable and Sustainable Energy Unit Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam31441 Saudi Arabia Nuclear Materials Authority P.O. Box 530 El-Maadi Cairo Egypt Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex Systems Innovation Academy for Green Manufacture Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China Sino Danish College University of Chinese Academy of Sciences Beijing100049 China Chemistry Department Faculty of Science Menoufia University Shebin El-Kom Egypt Department of Physics Faculty of Science King Abdulaziz University Jeddah21589 Saudi Arabia

A sustainable biosorbent, silver nanoparticles-decorated coffee-ground waste (CWAg), was synthesized through a simple in-situ reduction method. CWAg is extensively characterized via SEM–EDX, PZC, FTIR, XRD, HR-TEM, and XPS analyses. The biosorbent was tested to remove chromium (Cr(VI)) and methylene blue (MB) from wastewater, and its antibacterial properties was evaluated. CWAg demonstrated efficient sorption efficiencies, achieving ⁓149.9 mg/g at 323 K and pH: 2.0 for Cr(VI) and ⁓113.4 mg/g at 293 K and pH: 6.0 for MB, at a biosorbent dose of 1 g/L. The equilibration times were 90 and 120 min for Cr(VI) and MB, with half-sorption times (tHST) of 9.2 and 13.9 min, respectively. The sorption mechanisms were successfully fitted with Sips isotherm and Pseudo-second-order models. Simultaneous sorption of MB and Cr(VI) at pH 2.0 exhibited antagonism, while a synergistic effect was observed at pH 6.0. Desorption and regeneration were achieved using NaOH and HCl solutions for Cr(VI) and MB, respectively. The efficiencies were just reduced by 9–13%. Finally, CWAg exhibited remarkable effectiveness for removing Cr(VI) from complex tannery effluent. Moreover, CWAg demonstrated positive antibacterial effects against both Gram-positive and Gram-negative bacteria, surpassing raw coffee-ground waste, underscoring the significant role of silver nanoparticles in enhancing bacterial inhibition. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Silver nanoparticles

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High-temperature long-term oxidation resistance of SiCf/SiC-TaB2 composites fabricated by organic-inorganic hybrid precursor infiltration and pyrolysis process

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Corrosion Science 2025年 254卷

作者： Lv, Haozhong Zhu, Shipeng Tang, Yilin Zhang, Boya Sun, Wenting Yang, Yunhua Li, Junping Li, Junning Ge, Min Zhang, Weigang Science and Technology on Advanced Functional Composites Laboratory Aerospace Research Institute of Materials & Processing Technology Beijing100076 China State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

As an ideal material for high-performance aeroengines, silicon carbide ceramic matrix composites (SiC-CMCs) still face challenges such as degradation due to high-temperature oxidation and limitations of traditional processing methods. In this study, the SiCf/SiC-TaB2 composites were fabricated using an organic-inorganic hybrid process combining precursor infiltration and pyrolysis (PIP) and slurry infiltration (SI) techniques. Analysis of both non-isothermal and isothermal oxidation behaviors revealed that the incorporation of TaB2 particles substantially improves the oxidation resistance of SiC-CMCs over a wide temperature range. Moreover, a critical finding is the structural evolution of Ta2O5, formed from the oxidation of TaB2, which transitions from grainy to flaky and eventually to a layered structure, significantly contributing to the composites' long-term oxidation resistance. Compared with the conventional SiCf/SiC composites, the mass change of the SiCf/SiC-TaB2 composites decreased by 34.8 %, 52.0 %, and 86.2 % after oxidation at 1200°C, 1300°C, and 1400°C for 100 hours, respectively. Meanwhile, the strength retention of the composites increased by 6.61 %, 13.90 %, and 6.87 % at these temperatures. These findings underscore the efficacy of the organic-inorganic hybrid precursor infiltration and pyrolysis process in producing high-performance SiC-CMCs with enhanced oxidation resistance and mechanical durability. © 2025 Elsevier Ltd

关键词： Organic-inorganic materials

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Tailored binder to eliminate the concentration polarization in ultrathick electrodes for lithium battery

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Journal of Power Sources 2025年 648卷

作者： Guo, Yawei Wu, Xiangkun Li, Rui Jia, Mengmin Wen, Bohua Zhang, Lan Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu610041 China CAS Key Laboratory of Green Process and Engineering Beijing Key Laboratory of Solid State Battery and Energy Storage Process State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China University of Chinese Academy of Sciences Beijing100049 China Materials Research Institute Shenzhen International Graduate School Tsinghua University Shenzhen518055 China School of Chemistry and Chemical Engineering Henan Normal University Xinxiang453007 China

Thick electrode technology with high active material (AM) loading is a universal method to enhance the energy density of lithium batteries by minimizing the inactive material ratio. However, thick electrodes with high AM utilization are challenging due to the poor mechanical properties of the binder as well as the inevitable concentration gradient when liquid electrolyte is adopted. Herein, a multifunctional binder, βPC, composed of CuSO4 and poly (ethylene oxide) (PEO) threaded through β-cyclodextrin polymer (β-CDp), is prepared for ultrathick LiFePO4 and sulfurized polyacrylonitrile (SPAN) electrodes. Among which PEO not only acts as a Li+ reservoir to eliminate the concentration polarization, but also crosslinked with β-CDp and thus enhances the binder's durability to stress. Specifically, CuSO4 undergoes an in-situ conversion process in the electrode to form the highly conductive CuxS species when SPAN is used as the AM, which in turn enhances the battery kinetic. As a result, the electrodes exhibit impressive AM utilization almost independent of AM loading in the wide range up to 69.4 mg cm−2. © 2025 Elsevier B.V.

关键词： Lithium sulfur batteries

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NiMo/CoP nanoflower electrodes with abundant heterogeneous interfaces as efficient electrocatalysts for alkaline water splitting

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Fuel 2025年 399卷

作者： Luo, Li Li, Hanyu Liu, Shantang Key Laboratory for Green Chemical Process of Ministry of Education School of Chemistry and Environmental Engineering State Key Laboratory of Green and Efficient Development of Phosphorus Resources Wuhan Institute of Technology Wuhan430073 China

The development of high-performance, excellent stability, and cost-effective non-precious metal catalysts is essential for large-scale electrochemical water splitting. In this study, we designed and constructed novel NiMoX/CoP heterostructures with nanoflower morphology through hydrothermal, phosphorization, and magnetron sputtering processes, serving as efficient hydrogen and oxygen evolution reaction (HER and OER) catalysts. Electrochemical tests indicate the optimal sample NiMo450/CoP exhibited excellent hydrogen evolution performance in an alkaline electrolyte, with overpotentials of only 30 and 215 mV at current densities of 10 and 100 mA cm−2, respectively. Notably, the NiMo450/CoP delivers outstanding long-term stability, maintaining 94 % of its initial performance over 60 h at a current density of 10 mA cm−2. Furthermore, NiMo450/CoP also demonstrated the lowest OER overpotential (216 mV at 10 mA cm−2), and the assembled two-electrode electrolyzer operated efficiently with a low cell voltage of 1.54 V. The excellent catalytic performance and stability may be attributed to the synergistic effect of NiMo alloy and the layered heterostructure of NiMoX/CoP. This research outlines a method for preparing high-activity non-precious metal catalysts, which has the potential to promote industrial water splitting applications. © 2025

关键词： Nanoflowers

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Flood complexity and rising exposure risk in High Mountain Asia under climate change

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Science Bulletin 2025年第10期70卷 1601-1604页

作者： Bai, Yuanyuan Li, Dongfeng Wangchuk, Sonam Kettner, Albert Zhao, Yi Deng, Rui Liu, Yong Xiao, Cunde Ni, Jinren Cui, Peng Key Laboratory for Water and Sediment Sciences Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing100871 China State Environmental Protection Key Laboratory of All Materials Flux in River Ecosystems Peking University Beijing100871 China Institute of Carbon Neutrality Peking University Beijing100871 China Institute of Tibetan Plateau Peking University Beijing100871 China International Centre for Integrated Mountain Development Kathmandu44600 Nepal CSDMS Institute of Arctic and Alpine Research University of Colorado Boulder BoulderCO80309-0545 United States State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal University Beijing100875 China Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China Key Laboratory of Mountain Hazards and Earth Surface Process Institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu610299 China

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Highly selective hydrogenolysis of furfuryl alcohol to 1,5-pentanediol over an efficient Ni/PrOx catalyst

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Fuel 2025年 398卷

作者： Huang, Yun Zhao, Peipei Cui, Kai Chen, Junwen Wu, Peng Li, Xiaohong State Key Laboratory of Petroleum Molecular & Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical Processes ECNU Engineering Center for Sustainable Carbon School of Chemistry and Molecular Engineering East China Normal University Shanghai200062 China State Key Laboratory of Petroleum Molecular & Process Engineering Sinopec Research Institute of Petroleum Processing Co. LTD. Beijing100083 China Institute of Eco-Chongming 20 Cuiniao Road Chenjia Town Chongming District Shanghai202162 China

The catalytic conversion of biomass-derived furfural and its derivatives such as furfuryl alcohol (FFA) into high value-added chemicals has been the subject of considerable attention within the field of biomass refining. Nevertheless, the selective hydrogenolysis of FFA represents a significant challenge to obtain the goal product such as 1,2-pentanediol (1,2-PeD) or 1,5-pentanediol (1,5-PeD) with satisfactory yield, due to complicated network involved in the FFA hydrogenolysis. Hence, selectivity control is the key to the hydrogenolysis of FFA. In this work, a 45Ni-Pr (45 wt% Ni/PrOx) catalyst prepared using a facile sol–gel method behaved very well in the hydrogenolysis of FFA, resulting in up to 86.3 % yield of 1,5-PeD under mild reaction conditions. Introduction of PrOx enhanced Ni dispersion and promoted intimate contact between Ni species and PrOx. This created weak and medium-strong basicity and oxygen vacancies on the catalyst surface, which facilitated the adsorption of FFA via the C-O-C bond on the furan ring and C-OH at the side chain. Moreover, the 45Ni-Pr catalyst had the balanced Ni0 and Ni2+ sites, which guarantee not only the saturation of the C=C bond on the furan ring in the presence of Ni0 sites to yield the intermediate tetrahydrofurfuryl alcohol (THFA), but also the subsequent ring-opening hydrogenolysis of THFA at the Ni0-OV-Ni2+-PrOx interfacial sites to produce 1,5-PeD selectively. This work establishes a viable and environmental benign approach for producing 1,5-PeD from the bio-based furfural derivatives, as well as a reference for the selective ring-opening hydrogenolysis of furan compounds. © 2025 Elsevier Ltd

关键词： Hydrogenolysis

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Designing surface oxygen species for efficient partial electro-oxidation of ethylene

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Chemical engineering Science 2025年 313卷

作者： Huang, Haoyang Shi, Haobo Lin, Qiang Li, Jinbing Li, Chengxiang Zhang, Guangjin Han, Yongsheng State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China Beijing Research Institute of Chemical Industry Yanshan Branch SINOPEC Beijing102500 China CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China School of Chemistry and Chemical Engineering Chongqing University Chongqing400030 China

Direct electro-oxidation of ethylene to ethylene oxide/ethylene glycol is a promising way to replace the thermo-catalytic route. However, it is a challenge to anchor the desired oxygen species for partial oxidation of ethylene, because these species are unstable and ready to converse to oxygen gas. Herein, we report a strategy to manipulate the oxygen evolution process and selectively retain the oxygen species. By adjusting the component and structure of the hydrated ruthenium oxide, the conversion of the oxygen species to oxygen gas is well inhibited, and the retention of *OH on the surface is more favored, leading to the one-step synthesis of ethylene glycol. Furthermore, a gas diffusion electrode is designed for enhancing the mass transfer of ethylene gas, bringing 466.9 mmol·h-1·gcatalyst-1 productivity and 7.314 mA·cm-2 partial current density to ethylene glycol. This work highlights the significance of regulating the intermediates species in selective electro-oxidation of small organic molecules. © 2025

关键词： Electrolysis

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Tandem electrocatalytic-catalytic conversion of nitrate and waste polylactic acid to alanine

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Journal of Energy Chemistry 2025年 108卷 694-702页

作者： Teng, Xue Liang, Shaozhen Shi, Kai Chen, Lisong Shi, Jianlin State Key Laboratory of Petroleum Molecular & Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical Processes Engineering Center for Sustainable Carbon School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China State Key Laboratory of High Performance Ceramics and Superfine Microstructures Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China Institute of Eco-Chongming Shanghai 202162 China

Herein, a tandem electrocatalytic-catalytic method is employed to produce valuable alanine from nitrate and waste polylactic acid (PLA). Initially, two strategies are proposed to enhance the performance of electrocatalytic NO₃⁻ reduction reaction (NO₃⁻RR): optimizing NO₃⁻ adsorption and accelerating water dissociation by modulating the cathode electrocatalyst. Fe-regulated Co nanosheets (Fe_0.33-Co(OH)₂ NSs) have been developed as an efficient electrocatalyst, which demonstrate a remarkable Faradaic efficiency (FE) of 98.2%, with a corresponding yield rate of 10.7 mg h⁻¹ cm⁻² for NO₃⁻RR to NH₃ at −0.1 V vs. RHE. Additionally, ∼95% FEs of NH₃ at −200 mA cm⁻² have been maintained for >430 h in the alkaline solution. Subsequently, in situ technologies have been utilized to elucidate the NO₃⁻RR pathways, the structure transformation of the electrocatalysts, and the effects of Fe-induced work function reduction and electron enrichment at Co sites on electrocatalytic activity. Finally, alanine is synthesized by using PLA and the generated NH₃ as the raw reactants on the Ru/TiO₂ catalyst, achieving maximum yield and selectivity of 81.3% and 91.8%, respectively, which provides a novel approach to utilize the nitrogen resource and mitigate plastic pollution. © 2025 Science Press and Dalian institute of Chemical Physics, Chinese Academy of Sciences

关键词： Adsorption of NO3− Electrocatalytic NO3−RR Fe-regulated Co(OH)2 nanosheets Hydrogenation of N-containing intermediates Tandem electrocatalytic-catalytic synthesis of alanine

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3D printing for tissue/organ regeneration in China

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Bio-Design and Manufacturing 2025年第2期8卷 169-242,I0001,I0002页

作者： Chaofan He Jiankang He Chengtie Wu Changshun Ruan Qi Gu Yongqiang Hao Yang Wu Shuo Bai Xiaoxiao Han Liliang Ouyang Jun Yin Hongzhao Zhou Zhuo Xiong Maobin Xie Lei Shao Jing Nie Liang Ma Cijun Shuai Changchun Zhou Xin Zhao Xuetao Shi Mengfei Yu Jiayin Fu Peng Wen Huixia Xuan Yuan Pang Yan’en Wang Yuan Sun Ziqi Gao Abdellah Aazmi Jingbo Zhang Tianhong Qiao Qixiang Yang Ke Yao Mao Mao Jianxin Hao Pinpin Wang Jirong Yang Huawei Qu Xinhuan Wang Xin Liu Shen Ji Shasha Liu Jingke Fu Bingxian Lu Mohan Wu Feng Chen Zihao Zheng Boqing Zhang Muyuan Chai Chaoying Zhang Mouyuan Sun Bo Peng Huayong Yang Yong He State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical EngineeringZhejiang UniversityHangzhou 310027China Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province School of Mechanical EngineeringZhejiang UniversityHangzhou 310027China State Key Laboratory for Manufacturing Systems Engineering Xi’an Jiaotong UniversityXi’an 710049China State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China Research Center for Human Tissue and Organ Degeneration Institute of Biomedicine and BiotechnologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Organ Regeneration and Reconstruction State Key Laboratory of Membrane BiologyInstitute of ZoologyChinese Academy of SciencesBeijing 100101China Beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China Shanghai Engineering Research Center of Innovative Orthopaedic Instruments and Personalized Medicine Clinical and Translational Research Center for 3D Printing TechnologyShanghai 200011China School of Biomedical Engineering Harbin Institute of Technology(Shenzhen)Shenzhen 518055China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Key Laboratory of Biopharmaceutical Preparation and Delivery Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China National Engineering Research Centre for High Efficiency Grinding Hunan UniversityChangsha 410082China Biomanufacturing Center Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China State Key Laboratory of Tribology in Advanced Equipment Tsinghua UniversityBeijing 100084China The Fourth Affiliated Hospital of Guangzhou Medical University Guangzhou 511436China School of Biomedical Engineering Guangzhou Medic

As surgical procedures transition from conventional resection to advanced tissue-regeneration technologies,human disease therapy has witnessed a great leap *** particular,three-dimensional(3D)bioprinting stands as a landmark in this setting,by promising the precise integration of biomaterials,cells,and bioactive molecules,thus opening up a novel avenue for tissue/organ *** by the editorial board of Bio-Design and Manufacturing,this review brings together a cohort of leading young scientists in China to dissect the core functionalities and evolutionary trajectory of 3D bioprinting,by elucidating the intricate challenges encountered in the manufacturing of transplantable *** further delve into the translational pathway from scientific research to clinical application,emphasizing the imperativeness of establishing a regulatory framework and rigorously enforcing quality-control ***,this review outlines the strategic landscape and innovative achievements of China in this field and provides a comprehensive roadmap for researchers worldwide to propel this field collectively to even greater heights.

关键词： 3D printing Bioprinting Tissue engineering Regenerative medicine

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