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Absorption properties and mechanism of lightweight and broadband electromagnetic wave-absorbing porous carbon by the swelling treatment

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1701-1712页

作者： Jianghao Wen Di Lan Yiqun Wang Lianggui Ren ailing Feng Zirui Jia Guanglei Wu College of Materials and Chemistry&Chemical Engineering Chengdu University of TechnologyChengdu 610059China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002China Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China Institute of Physics&Optoelectronics Technology Baoji University of Arts and SciencesBaoji 721016China

Bioderived carbon materials have garnered considerable interest in the fields of microwave absorption and shielding due to their reproducibility and environmental *** this study,KOH was evenly distributed on biomass Tremella using the swelling induction method,leading to the preparation of a three-dimensional network-structured hierarchical porous carbon(HPC)through *** achieved microwave absorption intensity is robust at-47.34 dB with a thin thickness of 2.1 ***,the widest effective absorption bandwidth,reaching 7.0 GHz(11–18 GHz),is attained at a matching thickness of 2.2 *** exceptional broadband and reflection loss performance are attributed to the 3D porous networks,interface effects,carbon network defects,and dipole *** has outstanding absorption characteristics due to its excellent impedance matching and high attenuation *** uniform pore structures considerably optimize the impedance-matching performance of the material,while the abundance of interfaces and defects enhances the dielectric loss,thereby improving the attenuation ***,the impact of carbonization temperature and swelling rate on microwave absorption performance was systematically *** research presents a strategy for preparing absorbing materials using biomass-derived HPC,showcasing considerable potential in the field of electromagnetic wave absorption.

关键词： biomass hierarchical porous carbon dielectric loss electromagnetic wave absorption

Reduced exciton binding energy and diverse molecular stacking enable high-performance organic solar cells with V_(OC)over 1.1 V

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Science China Chemistry 2024年第9期67卷 3140-3152页

作者： Tingting Dai Jiahao Lu ailing Tang Yuhan Meng Peiqing Cong Zongtao Wang Erjun Zhou National Center for Nanoscience and Technology Beijing 100190China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China College of Chemistry and Chemical Engineering Guangxi Minzu UniversityNanning 530006China Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou 450003China

High-voltage organic solar cells(OSCs)have received increasing attention because of their promising applications in tandem devices and indoor photovoltaics,but the trade-off between energy loss and charge generation induced by exciton binding energy(E_(b))has become one of the biggest bottlenecks limiting the development of this ***,a wide bandgap(WBG)nonfullerene acceptor BTA503 with reduced E_(b) is designed by changing the phenyl side chain on the central core of Cl-BTA5 to an alkyl *** diverseπ-πinteractions and enhanced molecular stacking of BTA503 are responsible for its reduced E_(b).Furthermore,both the diminished charge recombination and the fast exciton dissociation caused by the small E_(b) favor the generation of more charge carriers for the PTQ10:BTA503 *** efficient Forster resonance energy transfer(FRET)and multiple π-π stacking patterns provide additional charge transfer and transport ***,the PTQ10:BTA503-based OSC device achieves a V_(OC)of 1.112 V and a PCE of 12.70%,which is higher than that of PTQ10:Cl-BTA5(PCE=10.92%).Simultaneously,the thick film(~300 nm)binary device of PTQ10:BTA503 achieves a PCE of 10.13% with a V_(OC)of 1.102 V,which is the best result for thick film high-voltage *** importantly,the ternary device of PTQ10:BTA503:Cl-BTA5(1:0.9:0.1)realizes a champion PCE of 13.12% with a V_(OC)of 1.126 *** study demonstrates that it is an effective strategy to reduce E_(b) of A_(2)-A_(1)-D-A_(1)-A_(2) type WBG acceptors by modulating the side chains on D unit,which further favors the corresponding devices to obtain world-record PCE and improves their potential for commercial applications.

关键词： exciton binding energy intermolecular interaction wide-bandgap acceptor high V_(OC) organic solar cells

The involvement of brassinolides in fruit ripening:crosstalk with plant growth regulators and transcription factors

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Food Quality and Safety 2024年第1期8卷 41-49页

作者： ailing Li Xuetong Wu Yi Huang Xuejuan Pan KangdingYao Zhiya Liu ChunleiWang Weibiao Liao College of Horticulture Gansu Agricultural UniversityLanzhouChina

Brassinolides(BRs)are a kind of endogenous plant hormone that play an important role in regulating fruit *** can regulate the process of fruit ripening by interacting with plant growth regulators and transcription *** this review,we discuss recent research advances on the role of BRs in fruit ripening and its relation to plant growth regulators and transcription *** addition,BR signaling molecules that are involved in fruit ripening and ripening-related genes are also *** review provides a better theoretical basis for improving fruit quality and regulating fruit ripening to speed up market availability,and for studying the mechanisms of BRs in fruit ripening.

关键词： Fruit quality ethylene abscisic acid nitric oxide brassinazole-resistant 1.

Syrosingopine,an anti-hypertensive drug and lactate transporter(MCT1/4)inhibitor,activates hepatic stellate cells and exacerbates liver fibrosis in a mouse model

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Genes & Diseases 2024年第4期11卷 28-30页

作者： Meichun Guo Yannian Gou Xiangyu Dong Jiamin Zhong Aohua Li ailing Hao Tongchuan He Jiaming Fan Ministry of Education Key Laboratory of Diagnostic Medicine and the School of Laboratory Diagnostic MedicineChongqing Medical UniversityChongqing 400016China Molecular Oncology Laboratory Department of Orthopaedic Surgery and Rehabilitation MedicineThe University of Chicago Medical CenterChicagoIL 60637USA

Syrosingopine is an anti-hypertensive drug and can cause high intracellular lactate levels and end-product inhibition of lactate dehydrogenase by inhibiting the lactate transporters MCT1 and *** studies have shown that syrosingopine plays an essential role in the process of glycolytic blockade,ATP depletion,and cell death in cancer due to high intracellular levels of lactate.

关键词： hypertensive MCT1 drug

Building a Highland for AI Industry

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China's Foreign Trade 2024年第2期 54-56页

作者： Zhao ailing 不详

The 2024 Government Work Report proposes to step up the R&D and application of big data and AI,launch an AI Plus initiative,and build digital industry clusters with international *** is the first time that AI+(or AI Plus) has been written into the government work *** the previous Internet+to today's AI+,it means that the country will strengthen top-level design of AI industry.

关键词： competitiveness AI Government

Accelerate the Construction of the Green Supply Chain

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China's Foreign Trade 2024年第2期 44-45页

作者： Zhao ailing 不详

Climate change has become one of the most serious challenges to the sustainable development of mankind,while green and low-carbon development provides a new important stimulus for the global *** the China Development Forum which was held recently,the term"green supply chain"was frequently mentioned.A green supply chain refers to a supply chain that adopts carbon reduction and decarbonization technologies *** green supply chain system that China is currently committed to building will greatly contribute to the goal of carbon neutrality in the context of global climate change.

关键词： Supply mentioned thoroughly

A general and facile calcination method to synthesize single-site catalysts for highly efficient electrochemical CO_(2) reduction

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Nano Research 2024年第5期17卷 3895-3901页

作者： Rui Sui Bingyan Wang Yongsheng Wang Jiajing Pei Wei Zhu Wenxing Chen Chunhui Li ailing Sun Zhongbin Zhuang Engineering Research Center of Advanced Rare Earth Materials Department of ChemistryTsinghua UniversityBeijing 100084China College of Chemistry and Green Catalysis Center Zhengzhou UniversityZhengzhou 450001China State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Energy&Catalysis Center School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China

The electrochemical CO_(2) reduction reaction(CO_(2)RR)has received widespread attention as a promising method for producing sustainable chemicals and mitigating the global ***,we demonstrate a general and facile synthetic route for the metal-nitrogen-carbon(M-N-C)type catalyst by simply calcinating metal acetate and urea with commercial carbon black,which have potential application in CO_(2)*** synthesized Ni-NC-600 catalyst has the structure of single Ni atom coordinated with one N atom and three C atoms(Ni-N_(1)C_(3)),which is suggested by X-ray absorption *** Ni-NC-600 catalyst exhibits high CO_(2)RR catalytic performance and a high CO Faraday efficiency above 98%in a wide potential range from-0.7 to-1.3 V(*** hydrogen electrode(RHE)),superior to most of the reported Ni-N-C *** work has developed a facile strategy to synthesize high performance CO_(2)RR catalyst.

关键词： nickel single atom catalyst CO_(2)reduction reaction CO production electrocatalyst

MSMEs Accelerate Green Transformation

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China's Foreign Trade 2024年第4期 25-27页

作者： Zhao ailing 不详

Despite their important role in the economy,micro-,small-and medium-sized enterprises(MSMEs)are also the weakest link in the market ecosystem and face the challenge of sustainable development.“By enabling MSMEs to flourish,we can help to keep the vision of the Sustainable Development Goals(SDGs)alive,*** an economy that includes everyone,while also addressing the existential threat of climate change,to ensure a future that can sustain us all,”said Beate Trankmann,the United Nations Development Programme(UNDP)Resident Representative in China,as events were held recently to mark the 2024 UN Micro-,Small-and Medium-sized Enterprises Day.

关键词： Sustainable sized Transformation

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How Can Foreign Trade Be Stabilized?

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China's Foreign Trade 2024年第2期 32-34页

作者： Zhao ailing 不详

At an economy-themed press conference held on the day of the Second Session of the 14th National People's Congress,Minister of Commerce Wang Wentao admitted that the situation of foreign trade situation is still"very severe"this *** it comes to the future policies for stabilizing foreign trade,Wang Wentao said that the government will provide better financial services forforeign trade enterprises.

关键词： Trade enterprises admitted