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In-plane grain boundary induced defect state in hierarchical NiCo-LDH and effect on battery-type charge storage

Nano Research 2023年第4期16卷 4908-4916页

作者： Jinjin Ban Xiaohan Wen Honghong Lei Guoqin Cao Xinhong Liu Chunyao Niu Guosheng Shao Junhua Hu School of Materials Science and Engineering Industrial Technology Research Institute of Resource and Materials of Henan ProvinceZhengzhou UniversityZhengzhou 450001China State Center for International Cooperation on Designer Low-carbon&Environmental Materials(CDLCEM) Zhengzhou University100 Kexue AvenueZhengzhou 450001China Henan Provincial Key Laboratory for Metal Fuel Battery Foguang Power Generation Equipment Co.Ltd50 Holly StreetZhengzhou 450000China International Laboratory for Quantum Functional Materials of Henan School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450001China

Domain boundaries are regarded as the effective active sites for electrochemical energy storage materials due to defects enrichment therein.However,layered double hydroxides(LDHs)tend to grow into single crystalline nano sheets due to their unique two-dimentional(2D)lattice structure.Previously,much efforts were made on the designing hierarchical structure to provide more exposed electroactive sites as well as accelerate the mass transfer.Herein,we demonstrate a strategy to introduce low angle grain boundary(LAGB)in the flakes of Ni/Co layered double hydroxides(NiCo-LDHs).These defect-rich nano flakes were self-assembled into hydrangea-like spheres that further constructed hollow cage structure.Both the formation of hierarchical structure and grain boundaries are interpreted with the synergistic effect of Ni2+/Co2+ratio in an“etching-growth”process.The domain boundary defect also results in the preferential formation of oxygen vacancy(Vo).Additionally,density functional theory(DFT)calculation reveals that Co substitution is a critical factor for the formation of adjacent lattice defects,which contributes to the formation of domains boundary.The fabricated battery-type Faradaic NiCo-LDH-2 electrode material exhibits significantly enhanced specific capacitance of 899 C·g^(−1)at a current density of 1 A·g^(−1).NiCo-LDH-2//AC asymmetric capacitor shows a maximum energy density of 101.1 Wh·kg^(−1)at the power density of 1.5 kW·kg^(−1).

关键词： sacrificial template grain boundary oxygen vacancy(Vo) hierarchical structure

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Promotional catalytic activity and reaction mechanism of Ag-modified Ce_(0.6)Zr_(0.4)O_(2) catalyst for catalytic oxidation of ammonia

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Journal of Environmental Sciences 2023年第2期124卷 491-504页

作者： Xiaolong Tang Yuanyuan Zhang Yaru lei Yuanyuan Liu honghong Yi Fengyu Gao School of Energy and Environmental Engineering University of Science and Technology BeijingBeijing 100083China Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants Beijing 100083China

Ce1-xZrxO_(2) composite oxides(molar,x=0-1.0,interval of 0.2)were prepared by a cetyltrimethylammonium bromide-assisted precipitation method.The enhancement of silver-species modification and catalytic mechanism of adsorption-transformationdesorption process were investigated over the Ag-impregnated catalysts for lowtemperature selective catalytic oxidation of ammonia(NH_(3)-SCO).The optimal 5 wt.%Ag/Ce_(0.6)Zr_(0.4)O_(2) catalyst presented good NH_(3)-SCO performancewith>90% NH_(3) conversion at temperature(T)≥250°C and 89% N_(2) selectivity.Despite the irregular block shape and underdeveloped specific surface area(∼60m2/g),the naked and Ag-modified Ce_(0.6)Zr_(0.4)O_(2) solid solution still obtained highly dispersed distribution of surface elements analyzed by scanning electron microscope-energy dispersive spectrometer(SEM-EDS)(mapping),N_(2) adsorptiondesorption test and X-ray diffraction(XRD).H2 temperature programmed reduction(H2-TPR)and X-ray photoelectron spectroscopy(XPS)results indicated that Ag-modification enhanced the mobility and activation of oxygen-species leading to a promotion on CeO_(2) reducibility and synergistic Ag0/Ag+and Ce^(4+)/Ce^(3+)redox cycles.Besides,Ag+/Ag_(2)O clusters could facilitate the formation of surface oxygen vacancies that was beneficial to the adsorption and activation of ammonia.NH3-temperature programmed desorption(NH_(3)-TPD)showed more adsorption-desorption capacity to ammoniawere provided by physical,weakandmedium-strong acid sites.Diffused reflectance infrared Fourier transform spectroscopy(DRIFTS)experiments revealed the activation of ammonia might be the control step of NH3-SCO procedure,during which NH3 dehydrogenation derived from NHx-species and also internal selective catalytic reduction(i-SCR)reactions were proposed.

关键词： Ag/Ce_(0.6)Zr_(0.4)O_(2)catalyst Synergistic interaction Catalytic oxidation of ammonia NH3 dehydrogenation Internal selective catalytic reduction

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Recent advances based on Mg anodes and their interfacial modulation in Mg batteries

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Journal of Magnesium and Alloys 2022年第10期10卷 2699-2716页

作者： Fanfan Liu Guoqin Cao Jinjin Ban Honghong Lei Yan Zhang Guosheng Shao Aiguo Zhou Li zhen Fan Junhua Hu School of Materials Science and Engineering Industrial Technology Research Institute of Resource and Materials of Henan ProvinceZhengzhou UniversityZhengzhou 450001China State Center for International Cooperation on Designer Low-carbon and Environmental Materials(CDLCEM) Zhengzhou UniversityZhengzhou 450001China Henan Provincial Key Laboratory for Metal Fuel Battery Foguang Power Generation Equipment Co.Ltd50 Holly StreetZhengzhou 450000China School of Materials Science and Engineering Nanjing Institute of TechnologyNanjing 211167China Henan Key Laboratory of Materials on Deep-Earth Engineering School of Materials Science and EngineeringHenan Polytechnic UniversityJiaozuo 454000China Beijing Advanced Innovation Center for Materials Genome Engineering Institute of Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China

Magnesium(Mg)batteries(MBs),as post-lithium-ion batteries,have received great attention in recent years due to their advantages of high energy density,low cost,and safety insurance.However,the formation of passivation layers on the surface of Mg metal anode and the poor compatibility between Mg metal and conventional electrolytes during charge-discharge cycles seriously affect the performance of MBs.The great possibility of generating Mg dendrites has also caused controversy among researchers.Moreover,the regulation of Mg deposition and the enhancement of battery cycle stability is largely limited by interfacial stability between Mg metal anode and electrolyte.In this review,recent advances in interfacial science and engineering of MBs are summarized and discussed.Special attention is given to interfacial chemistry including passivation layer formation,incompatibilities,ion transport,and dendrite growth.Strategies for building stable electrode/interfaces,such as anode designing and electrolyte modification,construction of artificial solid electrolyte interphase(SEI)layers,and development of solid-state electrolytes to improve interfacial contacts and inhibit Mg dendrite and passivation layer formation,are reviewed.Innovative approaches,representative examples,and challenges in developing high-performance anodes are described in detail.Based on the review of these strategies,reference is provided for future research to improve the performance of MBs,especially in terms of interface and anode design.

关键词： Magnesium anode Dendrite Passivation layers Interfacial engineering Solid electrolyte interphase

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Rare-earth coordination polymer micro/nanomaterials: Preparation, properties and applications

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Frontiers of Materials Science 2018年第4期12卷 327-347页

作者： honghong ZOU lei WANG Chenghui ZENG Xiaolei GAO Qingqing WANG Shengliang ZHONG Research Center for Ultrafine Powder Materials College of Chemistry and Chemical Engineering Jiangxi Normal UniversityNanchang 330022China

Rare-earth coordination polymers (RECPs), as a family member of coordination polymers (CPs), have been prepared and studied widely. Thanks to their characteristic properties and functions, RECPs have already been used in various application fields ranging from catalysis to drug delivery. In recent years, CPs with tunable morphologies and sizes have drawn increasing interest and attractive attention. This review presents the recent research progress of RECP micro/nanomaterials, and emphasizes the preparation, properties and broad applications of these fascinating materials.

关键词： coordination polymer metal-organic framework rare earth nanomaterials coordination polymers metal organic framework Catalysis counts per second Nanomaterials Family Members Rare earths RECP Drug Liberation

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Comparing overall survival between first generation EGFR-TKIs and chemotherapy in lung cancer patients with Del19/L858R

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Chinese Journal of Cancer Research 2016年第3期28卷 339-347页

作者： Wei Deng Yuanyuan lei Siyang Liu Jinji Yang Haiyan Tu honghong Yan Yilong Wu Second Clinical Medial Committee Southern Medical University Guangzhou 510515 China Guangdong Lung Cancer Institute Guangdong General Hospital and Guangdong Academy of Medical Sciences Guangzhou 510080 China

Objective： Combined overall survival （OS） analysis of Lux-Lung 3 and Lux-Lung 6 demonstrated that patients with epidermal growth factor receptor （EGFR） exon 19 deletions （Del19） would benefit from first-line second generation EGFR tyrosine kinase inhibitors （TKIs） afatinib but not for those with L858R. This study was to investigate the survival difference between first-line first generation EGFR-TKIs and chemotherapy in patients with either Del19 or L858R, and to directly compare OS in these two mutation groups. Methods： Eligibles were all prospective and retrospective studies comparing EGFR-TKIs with conventional chemotherapy or receiving single agent EGFR-TKIs and demonstrating survival analysis based on mutation types. The primary outcome was OS measured as pooled hazard ratios （HRs）. All measures were pooled using random- effects models and 95% confidential interval （95% CI） was calculated. Results： A total of 14 studies incorporating 1,706 patients with either Del19 or L858R were included. Enrolling patients with Del19 or L858R in randomized controlled trials （RCTs）, first-line first generation EGFR-TKIs were associated with no OS benefit, compared with chemotherapy （pooled HR_TKI/Chemo for Del19： 0.82, 95% CI： 0.64- 1.06, P=0.14; pooled HR_TKI/Chemo for L858R： 1.15, 95% CI： 0.85-1.56, P=0.38）. Direct comparison of Del19 with L858R receiving with first-line first generation EGFR-TKIs demonstrated no significant survival difference （pooled HR19/21： 0.88, 95% CI： 0.67-1.16, P=0.37）. Conclusions： Among patients with advanced non-small cell hmg cancer （NSCLC） harboring Del19 and L858R, first-line first generation EGFR-TKIs demonstrated no survival benefit comparing with chemotherapy. Direct comparison between Del19 and L858R revealed no significant survival difference after first-line first generation EGFR-TKIs.

关键词： NSCLC EGFR Del19/L858R first generation EGFR-TKIs OS

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IQ67 DOMAIN protein 21 is critical for indentation formation in pavement cell morphogenesis

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Journal of Integrative Plant Biology 2023年第3期65卷 721-738页

作者： Xinhua Feng Shujuan Pan Haifu Tu Junjie Huang Chuanlei Xiao Xin Shen lei You Xinyan Zhao Yongqiang Chen Danyun Xu Xiaolu Qu honghong Hu National Key Laboratory of Crop Genetic Improvement Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070China Frontier Science Center for Immunology and Metabolism Medical Research InstituteWuhan UniversityWuhan 430070China Shanghai Center for Plant Stress Biology CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai 201602China Key Laboratory of Horticultural Plant Biology(MOE) College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhan 430070China

In plants, cortical microtubules anchor to the plasma membrane in arrays and play important roles in cell shape. However, the molecular mechanism of microtubule binding proteins, which connect the plasma membrane and cortical microtubules in cell morphology remains largely unknown. Here, we report that a plasma membrane and microtubule duallocalized IQ67 domain protein, IQD21, is critical for cotyledon pavement cell(PC) morphogenesis in Arabidopsis. iqd21 mutation caused increased indentation width, decreased lobe length, and similar lobe number of PCs, whereas IQD21 overexpression had a different effect on cotyledon PC shape. Weak overexpression led to increased lobe number, decreased indentation width, and similar lobe length, while moderate or great overexpression resulted in decreased lobe number, indentation width, and lobe length of PCs. Live-cell observations revealed that IQD21 accumulation at indentation regions correlates with lobe initiation and outgrowth during PC development. Cell biological and genetic approaches revealed that IQD21 promotes transfacial microtubules anchoring to the plasma membrane via its polybasic sites and bundling at the indentation regions in both periclinal and anticlinal walls. IQD21 controls cortical microtubule organization mainly through promoting Katanin 1-mediated microtubule severing during PC interdigitation. These findings provide the genetic evidence that transfacial microtubule arrays play a determinant role in lobe formation, and the insight into the molecular mechanism of IQD21 in transfacial microtubule organization at indentations and puzzle-shaped PC development.

关键词： IQD21 KTN1 lobe outgrowth pavement cell interdigitation transfacial microtubules

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Molten salt synthesis,morphology modulation,and lithiation mechanism of high entropy oxide for robust lithium storage

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Journal of Energy Chemistry 2023年第11期86卷 536-545,I0011页

作者： Xuefeng Liu honghong Wang Long Dong Kezhuo Li Haijun Zhang Quanli Jia Shaowei Zhang Wen lei The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina Henan Key Laboratory of High Temperature Functional Ceramics Zhengzhou UniversityZhengzhou 450052HenanChina College of Engineering Mathematics and Physical SciencesUniversity of ExeterExeter EX44QFUK Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China

High entropy oxides(HEOs)with ideal element tunability and enticing entropy-driven stability have exhibited unprecedented application potential in electrochemical lithium storage.However,the general control of dimension and morphology remains a major challenge.Here,scalable HEO morphology modulation is implemented through a salt-assisted strategy,which is achieved by regulating the solubility of reactants and the selective adsorption of salt ions on specific crystal planes.The electrochemical properties,lithiation mechanism,and structure evolution of composition-and morphology-dependent HEO anode are examined in detail.More importantly,the potential advantages of HEOs as electrode materials are evaluated from both theoretical and experimental aspects.Benefiting from the high oxygen vacancy concentration,narrow band gap,and structure durability induced by the multi-element synergy,HEO anode delivers desirable reversible capacity and reaction kinetics.In particular,Mg is evidenced to serve as a structural sustainer that significantly inhibits the volume expansion and retains the rock salt lattice.These new perspectives are expected to open a window of opportunity to compositionally/morphologi cally engineer high-performance HEO electrodes.

关键词： High-entropy oxide Lithium-ion battery anode Molten salt Morphology modulation Structure stability

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Recent advances in nano-enabled agriculture for improving plant performance

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The Crop Journal 2022年第1期10卷 1-12页

作者： honghong Wu Zhaohu Li MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River College of Plant Science&TechnologyHuazhong Agricultural UniversityWuhan 430070HubeiChina College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100083China Shenzhen Institute of Nutrition and Health Huazhong Agricultural UniversityShenzhen 518120GuangdongChina Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120GuangdongChina

Nano-enabled agriculture is an emerging hot topic.To facilitate the development of nano-enabled agriculture,reviews addressing or discussing the applications,knowledge gap,future research needs,and possible new research field of plant nanobiotechnology in agricultural production are encouraged.Here we review the following topics in plant nanobiotechnology for agriculture:1)improving stress tolerance,2)stress sensing and early detection,3)targeted delivery and controlled release of agrochemicals,4)transgenic events in non-model crop species,and 5)seed nanopriming.We discuss the knowledge gaps in these topics.Besides the use of nanomaterials for harvesting more electrons to improve photosynthetic performance,they could be used to convert n IR and UV to visible light to expand the light spectrum for photosynthesis.We discuss this approach to maintaining plant photosynthesis under light-insufficient conditions.Our aim in this review is to aid researchers to learn quickly how to use plant nanobiotechnology for improving agricultural production.

关键词： Nano-enabled agriculture Nanosensors Mechanisms Photosynthesis Signaling molecules Stress tolerance

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征信支持中小微企业融资的主要进展及政策建议

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西部金融 2022年第6期 71-74页

作者：冯雷高红红杨志东中国人民银行西安分行陕西西安710075 中国人民银行榆林市中心支行陕西榆林719000 广发银行西安分行陕西西安710075

征信在缓解银企信息不对称、助力中小微企业融资发展方面发挥着重要作用。本文对征信缓解中小微企业融资约束作用进行了分析,探讨了征信支持中小微企业融资的难点,梳理了我国征信支持中小微企业融资的主要做法和工作成效,并据此提出相... 详细信息

征信在缓解银企信息不对称、助力中小微企业融资发展方面发挥着重要作用。本文对征信缓解中小微企业融资约束作用进行了分析,探讨了征信支持中小微企业融资的难点,梳理了我国征信支持中小微企业融资的主要做法和工作成效,并据此提出相关政策建议。

关键词：征信信息不对称中小微企业融资

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Research progress on metal-organic framework compounds(MOFs)in electrocatalysis

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Journal of Environmental Sciences 2024年第7期141卷 261-276页

作者： Yutong Guo Shunzheng Zhao Xiaolong Tang honghong Yi Department of Environmental Science and Engineering School of Energy and Environmental EngineeringUniversity of Science and Technology BeijingBeijing 100083China Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants Beijing 100083China

Metal-organic frameworks(MOFs)have favorable characteristics such as large specific surface area,high porosity,structural diversity,and pore surface modification,giving them great potential for development and attractive prospects in the research area of modern materials electrocatalysis.However,unsatisfactory catalytic activity and poor electronic conductivity are the main challenges facing MOFs.This review focuses on MOF-based materials used in electrocatalysis,based on the types of catalytic reactions that have used MOF-based materials in recent years along with their applications,and also looks at some new electrocatalytic materials and their future development prospects.

关键词： Metal-organic frame compounds Electrocatalysis Oxidation-reduction Nitrogen fixation to synthesize ammonia Carbon dioxide reduction

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