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Surface/Interface Engineering of Hierarchical MoO_(2)/MoNi_(4)@Ru/RuO_(2)Heterogeneous Nanosheet Arrays for Alkaline Water Electrolysis with Fast Kinetics

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Chinese Journal of Chemistry 2024年第2期42卷 119-128页

作者： Qiong Zhang Ruixue Zhang Yingxiu Zhao Tiantian Sun Jianyang Gao Guang-Rui Xu Zexing Wu Yu Yang Lei Wang Key Laboratory of Eco-chemical Engineering Key Laboratory of Optic-electric Sensing and Analytical Chemistry of Life ScienceTaishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and TechnologyCollege of Chemistry and Molecular EngineeringSchool of Materials Science and EngineeringQingdao University of Science and TechnologyQingdaoShandong 266042China College of Environment and Safety Engineering Qingdao University of Science and TechnologyQingdaoShandong 266042China

Realizing the hydrogen economy by water electrolysis is an attractive approach for hydrogen production,while the efficient and stable bifunctional catalysts under high current densities are the bottleneck that limits the half-cell reactions of water splitting.Here,we propose an approach of hydrothermal and thermal annealing methods for robust MoO_(2)/MoNi_(4)@Ru/RuO_(2) heterogeneous cuboid array electrocatalyst with multiplying surface-active sites by depositing a monolayer amount of Ru.Benefiting from abundant MoO_(2)/MoNi_(4)@Ru/RuO_(2)heterointerfaces,MoO_(2)/MoNi_(4)@Ru/RuO_(2) heterogeneous cuboid array electrocatalysts effectively drive the alkaline water splitting with superior hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)performances.The synthesized MoO_(2)/MoNi_(4)@Ru/RuO_(2) has high HER activity,which realizes the working overpotentials of 48 mV at 50 mA·cm^(-2),further achieving overpotentials of 230 mv for industry-level 1000 mA·cm^(-2) in alkaline water electrolysis.Moreover,it also showed an enhanced OER activity than commercial RuO_(2) with a small overpotential of 280 mV at 200 mA·cm^(-2) in alkaline media.When building an electrolyzer with electrodes of(-)MoO_(2)/MoNi_(4)@Ru/RuO_(2)IIMo02/MoNig@Ru/RuO_(2)(+),a cell voltage of 1.63 V and 1.75 V is just required to support the current density of 200 mA·cm^(-2) and 500 mA-cm^(-2) in alkaline water electrolysis,much lower than that of the electrolyzer of(-)Pt/CIIRuO_(2)(+).This work demonstrates that MoO_(2)/MoNig@Ru/RuO_(2) heterogeneous nanosheet arrays are promising candidates for industrial water electrolysis applications,providing a possibility for the exploration of water electrolysis with a large currentdensity.

关键词： Hierarchical heterostructure Surface engineering Bifunctional catalysts Hydrogen evolution reaction Oxygen evolution reaction Watersplitting Catalytic activity Electrocatalysis Heterogeneous catalysis

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Polysulfide modified PtCu intermetallic nanocatalyst with enrichment realizes efficient electrooxidation ethanol to CO_(2)

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Nano Research 2024年第4期17卷 2320-2327页

作者： Shuanglong Zhou Zheng Lv Liang Zhao Dan Zhang Zuocao Wang Yu Dai Bin Li Olga Starostenko Jianping Lai Lei Wang Key Laboratory of Eco-chemical Engineering Ministry of EducationTaishan scholar advantage and characteristic discipline team of Eco-chemical process and technologyLaboratory of Inorganic Synthesis and Applied ChemistryCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China College of Foreign Languages Qingdao City UniversityQingdao 266106China College of Materials Science and Engineering Qingdao University of Science and TechnologyQingdao 266042China Institute of Macromolecular Chemistry of the National Academy of Sciences of Ukraine Kyiv 02160Ukraine Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection College of Environment and Safety EngineeringQingdao University of Science and TechnologyQingdao 266042China

The main problem faced by ethanol oxidation reaction(EOR)includes low activity,poor selectivity,and durability.In the study,we found that polysulfide modified on the surface of PtCu intermetallic(IM)/C can simultaneously enrich hydroxyl and ethanol,which could effectively improve the catalytic activity,CO_(2) selectivity,and durability of catalyst.The mass activity and the specific activity of the product in 1 M KOH electrolyte reached 17.83 A·mgPt^(-1) and 24.67 mA·cm^(-2).The CO_(2) selectivity of polysulfide modified product achieved 93.5%,which was 30 folds higher than Pt/C.In addition,the catalyst showed high catalytic stability.The mechanism study demonstrates that the surface modified polysulfide could significantly boost the enrichment effect of ethanol and hydroxyl species,accelerating C–C bond cleavage and CO oxidation.

关键词： Pt CO_(2) selectivity enrichment effect ethanol oxidation reaction(EOR) electrocatalyst

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Rational cathode configuration with bilayer membranes to engineer current-collector-free high-areal-sulfur lithium-sulfur batteries

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Nano Research 2024年第6期17卷 5224-5232页

作者： Jianmei Han Hua Zhang Peng Wang Ning Song Xuguang An Baojuan Xi Shenglin Xiong College of Chemistry and Chemical Engineering Taishan UniversityTai’an 271021China Key Laboratory of the Colloid and Interface Chemistry Ministry of Educationand School of Chemistry and Chemical EngineeringShandong UniversityJinan 250100China School of Mechanical Engineering Chengdu UniversityChengdu 610106China

The application of light-weight current collectors is preferred because of the increased energy density of the batteries.Bearing it in mind,the cathode is designed with self-made paperlike memberane as current collector coupled with another interlayer to enable the high-energy-density lithium-sulfur batteries.Via a facile and green step-by-step methodology,the hybrid membrane is finalized successfully,consisting of reduced graphene oxide sheets covering paper-derived carbon(GPC)bearing Fe@Fe2O3 and Fe1−xS@Fe2O3 core-shell nanoparticles(FeFeO/FeSFeO@GPC).The film works as the current collector and interlayer simultaneously considering the porous and conductive features.As demonstrated by the electrochemical testing,the FeFeO/FeSFeO@GPC hybrid cell exhibits attractive cycling stability and superior rate capability.The cell configuration and structural/composition merits of FeFeO/FeSFeO@GPC film facilitate the faster reaction kinetics,conducive to the improvement of capacity retention.In view of the effective cathode design,the areal sulfur loading is increased to 10.46 mg·cm^(−2)and a reversible capacity of 6.67 mAh·cm^(−2)can be retained after 60 cycles at 0.1 C.

关键词： light-weight self-made current collector core-shell high-areal-sulfur lithium-sulfur batteries

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Ex vivo expansion of hematopoietic stem cells

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Science China(Life Sciences) 2015年第9期58卷 839-853页

作者： XIE JingJing ZHANG ChengCheng taishan scholar immunology program Binzhou Medical University Departments of Physiology and Developmental Biology University of Texas Southwestern Medical Center

Ex vivo expansion of hematopoietic stem cells(HSCs) would benefit clinical applications in several aspects, to improve patient survival, utilize cord blood stem cells for adult applications, and selectively propagate stem cell populations after genetic manipulation. In this review we summarize and discuss recent advances in the culture systems of mouse and human HSCs, which include stroma/HSC co-culture, continuous perfusion and fed-batch cultures, and those supplemented with extrinsic ligands, membrane transportable transcription factors, complement components, protein modification enzymes, metabolites, or small molecule chemicals. Some of the expansion systems have been tested in clinical trials. The optimal condition for ex vivo expansion of the primitive and functional human HSCs is still under development. An improved understanding of the mechanisms for HSC cell fate determination and the HSC culture characteristics will guide development of new strategies to overcome difficulties. In the future, development of a combination treatment regimen with agents that enhance self-renewal, block differentiation, and improve homing will be critical. Methods to enhance yields and lower cost during collection and processing should be employed. The employment of an efficient system for ex vivo expansion of HSCs will facilitate the further development of novel strategies for cell and gene therapies including genome editing.

关键词：造血干细胞体外扩增脐带血干细胞小分子化合物临床应用治疗方案 HSC 遗传操作

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Factors associated with the incidence of patient falls in hospitals:A scoping review

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Journal of Integrative Nursing 2024年第2期6卷 117-126页

作者： Nurul AINANI Andi Masyitha IRWAN Posgraduate Nursing program Faculty of NursingHasanuddin UniversityMakassarIndonesia Department of Gerontological Nursing Faculty of NursingHasanuddin UniversityMakassarIndonesia

When a patient falls within a hospital setting,there is a significant increase in the risk of severe injury or health complications.Recognizing factors associated with such falls is crucial to mitigate their impact on patient safety.This review seeks to analyze the factors contributing to patient falls in hospitals.The main goal is to enhance our understanding of the reasons behind these falls,enabling hospitals to devise more effective prevention strategies.This study reviewed literature published from 2013 to 2022,using the Arksey and O’Malley methodology for a scoping review.The research literature was searched from seven databases,namely,PubMed,ScienceDirect,Wiley Library,Garuda,Global Index Medicus,Emerald Insight,and Google scholar.The inclusion criteria comprised both qualitative and quantitative primary and secondary data studies centered on hospitalized patients.Out of the 893 studies analyzed,23 met the criteria and were included in this review.Although there is not an abundance of relevant literature,this review identified several factors associated with falls in hospitals.These encompass environmental,patient,staff,and medical factors.This study offers valuable insights for hospitals and medical personnel aiming to enhance fall prevention practices.Effective prevention efforts should prioritize early identification of patient risk factors,enhancement of the care environment,thorough training for care staff,and vigilant supervision of high-risk patients.By comprehending the factors that contribute to patient falls,hospitals can bolster patient safety and mitigate the adverse effects of falls within the health-care setting.

关键词： Associated factors patient falls patient safety

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基于低浓度掺杂TTF-HLCT一体化分子提供的多重激子循环通道增强深蓝光OLED的稳定性（英文）

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Science China Materials 2024年

作者：唐振宇龚乐帆郭浩清杨爽罗骏唐荣肖静张震曲波陈志坚肖立新 State Key Laboratory of Artificial Microstructure and Mesoscopic Physics School of Physics Peking University College of Physics and Electronic Engineering Taishan University Key Laboratory of Advanced Display and System Applications Ministry of Education Shanghai University

目前,商用的深蓝有机发光二极管(OLED)使用的三重态-三重态融合(TTF)型发光材料只能捕获50%的三重态(T1)激子,导致其器件效率较低.基于窄带蓝色发射体的热激活延迟荧光(TADF)和超荧光策略可以实现接近100%的激子利用率,然而,在发射层(E...

目前,商用的深蓝有机发光二极管(OLED)使用的三重态-三重态融合(TTF)型发光材料只能捕获50%的三重态(T1)激子,导致其器件效率较低.基于窄带蓝色发射体的热激活延迟荧光(TADF)和超荧光策略可以实现接近100%的激子利用率,然而,在发射层(EML)中停留的高能量T1激子通常会导致不可避免的分子降解,从而限制了器件的使用寿命.为了解决这一问题,本文研究了一种TTF-杂化局域-电荷转移态(HLCT)一体化分子,旨在通过多个激子回收通道降低EML内T1激子的密度,从而提高高效深蓝OLED的稳定性.通过TTF过程回收T1激子,通过HLCT过程利用高能三重态(Tn)激子,可以提高EML中三重态激子的利用率.此外,低浓度掺杂的TTF-HLCT分子在TADF体系中可以减轻T1激子猝灭造成的效率损失.最后,实现了外量子效率(EQE)为25.9%、CIE为(0.131,0.050)、蓝光指数(CE由CIEy校准)为312 cd A-1CIEy-1的顶发射OLED,并且其寿命T90@1000 cd m-2从0.5小时延长到6.1小时.本工作揭示了低浓度TTF-HLCT分子掺杂的潜力,作为一种可行的解决方案,可以最大限度地减少效率猝灭,并解决蓝光OLED的稳定性问题.

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The highly dispersed Co-based nanoparticles encapsulated into porous N-doping carbon polyhedral with the low content of Ru modification as a promising cathode catalyst for long-life Li-O_(2)batteries

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Nano Research 2022年第4期15卷 3204-3212页

作者： Yiru Ma Huiqi Qu Zhenzhen Chi Xiaoqiang Liu Yueqin Yu Ziyang Guo Lei Wang Key Laboratory of Eco-chemical Engineering Taishan Scholar Advantage and Characteristic Discipline Team of Eco-chemical Process and TechnologyCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China College of Chemistry and Molecular Engineering Qingdao University of Science and TechnologyQingdao 266042China College of Environment and Safety Engineering Qingdao University of Science and TechnologyQingdao 266042China Key Laboratory of Eco-chemical Engineering Taishan Scholar Advantage and Characteristic Discipline Team of Eco-chemical Process and TechnologyCollege of Chemical EngineeringQingdao University of Science and TechnologyQingdao 266042China

Lithium(Li)-O_(2)batteries have triggered worldwide interest due to their ultrahigh theoretical energy density.However,it is a long shot for the grand-scale applications of Li-O_(2)battery at current stage owing to its significant polarization,inferior cycling life,and irreversible decomposition of Li2O_(2).Herein,a facile way of preparing the highly dispersed Co-based nanoparticles encapsulated into porous N-doping carbon polyhedral with the low content of Ru modification(LRu@HDCo-NC)is explored through the pyrolysis of Co/Zn based zeolitic imidazole frameworks(ZIFs)containing Ru-based ligands.Even with the very small amount of Ru introduction(1.8%),LRu@HDCo-NC still exhibits the superior oxygen evolution reaction/oxygen reduction reaction(OER/ORR)performance and also inhibits side reactions in Li-O_(2)battery because of the abundant pores,plentiful surface N heteroatoms,and highly dispersed metal-based sites which are induced by the volatilization of Zn,and conductive/stable carbon skeleton derived from ZIFs.When applied in Li-O_(2)batteries,LRu@HDCo-NC cathode delivers a high discharge capacity of 15,973 mAh·g^(-1)at 200 mA·g^(-1),good capacity retention at higher rate(12,362 mAh·g^(-1)at 500 mA·g^(-1))and outstanding stability for>300 cycles with low voltage polarization of<2.3 V under a cut-off capacity of 1,000 mAh·g^(-1)at 500 mA·g^(-1).More critically,a series of ex situ and in situ characterization technologies disclose that the LRu@HDCo-NC cathodes can effectively promote the reversible reactions in Li-O_(2)batteries.

关键词： zeolitic imidazole frameworks Zn volatilization high dispersed Co-based particles Ru modification rechargeable Li-O_(2)batteries

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Tomato CYP94C1 inactivates bioactive JA-lle to attenuate jasmonate-mediated defense during fruit ripening

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Molecular Plant 2024年第4期17卷 509-512页

作者： Tianxia Yang Lei Deng Qinyang Wang Chuanlong Sun Muhammad Ali Fangming Wu Huawei Zhaj Qian Xu Peiyong Xin Shujing Cheng Jinfang Chu Tingting Huang Chang-Bao Li Chuanyou Li Key Laboratory of Seed Innovation Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China College of Life Sciences Shandong Agricultural UniversityTai'an 271018China taishan Academy of Tomato Innovation Tai'an 271018China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049China College of Horticulture Science and Engineering Shandong Agricultural UniversityTaian 271018China Institute of Vegetable Qingdao Academy of Agricultural SciencesQingdao 266100China Key Laboratory of Biology and Genetic Improvement of Horticultural Crops(North China) Ministry of AgricultureBeijing Vegetable Research CenterBeijing Academy of Agriculture and Forestry SciencesBejing 100097China Frontiers Science Center for Molecular Design Breeding(MOE) Department of Plant Genetics and BreedingChina Agricultural UniversityBeijing 100193China

Dear Editor,Fruit rot caused by necrotrophic pathogens results in substantial reductions in fruit yield and revenues worldwide(Petrasch et al.,2019).A widespread phenomenon in fleshy fruit species is the susceptibility of ripe fruits to necrotrophs(Silva et al.,2021),which facilitates seed dispersal(Forlani et al.,2019)but causes severe post-harvest losses in production.As most of the nutritional and sensory qualities of fruits are elaborated at the ripening stage(Liu et al.,2015),balancing fruit ripening and pathogen resistance to maintain fruit quality has proven to be challenging.A deeper understanding of the mechanisms underlying the increased susceptibility of fruits to necrotrophs during ripening could lead to new strategies for producing necrotrophy-resistant fruits without compromising ripening-relatedquality.

关键词： susceptibility maintain fruit

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MnO_(2) nanosheet modified N, P co-doping carbon nanofibers on carbon cloth as lithiophilic host to construct high-performance anodes for Li metal batteries

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Journal of Energy Chemistry 2022年第6期31卷 270-281,I0008页

作者： Xiaoqiang Liu Qian Zhang Yiru Ma Zhenzhen Chi Huixiang Yin Jie Liu Junfei Huang Ziyang Guo Lei Wang Key Laboratory of Eco-chemical Engineering Taishan Scholar Advantage and Characteristic Discipline Team of Eco-Chemical Process and TechnologyCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042ShandongChina College of Environment and Safety Engineering Qingdao University of Science and TechnologyQingdao 266042ShandongChina Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China Key Laboratory of Eco-chemical Engineering Taishan Scholar Advantage and Characteristic Discipline Team of Eco-Chemical Process and TechnologyCollege of Chemical EngineeringQingdao University of Science and TechnologyQingdao 266042ShandongChina Shimadzu(China)Co. Ltd.Shenzhen BranchShenzhen 518000GuangdongChina

Lithium (Li) metal batteries have attracted much attention owing to its ultra-high energy density.However,as important part of Li metal batteries,Li anodes still face many challenges,mainly including uncontrolled dendritic Li formation,dramatical volume variation and serious pulverization.Herein,manganese dioxide (MnO_(2)) nanosheet modified nitrogen (N),phosphorus (P) co-doping carbon nanofibers(NPC) on carbon cloth (CC)(MnO_(2)@NPC-CC) is successfully fabricated through electrodeposition approach and further treated with Li by the molten-infusion method to prepare Li based Mn@NPC-CC(Li-Mn@NPC-CC) electrode.The synergy of MnO_(2) and NPC obviously increases the reaction rate between MnO_(2)@NPC-CC and Li and guides even Li distribution over infusion process.Additionally,theoretical calculation,simulation and experimental results further indicate that N,P,Mn multi-doping effectively improves the superior lithiophilicity of Li-Mn@NPC-CC,which induces uniform Li deposition/dissolution to suppress dendrite growth over cycles.Moreover,conductive and porous NPC matrix not only effectively improves the stability of Li-Mn@NPC-CC,but also provides abundant spaces to accelerate the transfer of ion/electron and buffer electrode dimension variation during cycling.Hence,Li-Mn@NPC-CC-based symmetric cells exhibit extra-long cycling life (over 2200 h) with small hysteresis of 20 mV.When the LiMn@NPC-CC anode couples with air,Li iron phosphate (LiFePO_(4)),or hard carbon (C) cathode,the assembled full cells exhibit outstanding performance with low hysteresis and stable cycling properties.Especially,the corresponding pouch-typed Li–air cells also exhibit good performance at different bending angles and even power a series of electronic devices.

关键词： N,P co-doped carbon nanofibers on carbon cloth MnO_(2)nanosheet coating Molten-infusion method Li metal anodes Li metal batteries

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High-adhesion anionic copolymer as solid-state electrolyte for dendrite-free Zn-ion battery

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Nano Research 2022年第8期15卷 7190-7198页

作者： Jiaxu Li Junfeng Ren Caixia Li Pengxian Li Tingting Wu Shiwei Liu Lei Wang State Key Laboratory Base of Eco-chemical Engineering Taishan Scholar Advantage and Characteristic Discipline Team of Eco-chemical Process and TechnologyQingdao University of Science and TechnologyQingdao 266042China College of Chemical Engineering Qingdao University of Science and TechnologyQingdao 266042China College of Environment and Safety Engineering Qingdao University of Science and TechnologyQingdao 266042China

To conquer severe dendrites formation and side reactions of zinc metal anodes,which are serious obstacles for the practical applications of aqueous zinc ion battery(ZIB),herein,we develop a sodium allysulfonate(SAS)and acrylamide(AM)copolymer by radical polymerization process(crosslinking of C=C)as solid-state electrolyte.The interface kinetics is improved remarkably due to the high adhesion and excellent ion transferability of AM-SAS(AS)copolymers.Especially the sulfonic acid group in the hydrogel electrolyte can enhance the internal ionic conductivity effectively benefiting from its high affinity to Zn^(2+).Also,polymer chains realize re-regulation to Zn^(2+)flow in atomic-scale,thus leading to controllable deposition of Zn onto the dendrite-free Zn anodes.Consequently,the AS-1.5 electrolyte achieves ultra-stable Zn deposition/stripping behaviors with the lifespan over 1,000 h via the suppression of side-reactions and paralleled Zn deposition.High performances of Zn/Mn-doped V_(2)O_(5)(MnVO)(over 500 cycles)and Zn/diquinoxalino[2,3-a:2',3'-c]phenazine(HATN)(over 2,500 cycles)full cells demonstrate that the AS hydrogel electrolyte is a common approach for ZIBs under various conditions.This molecular regulation engineering opens a novel route for hydrogel electrolyte fabrication,where sulfonic groups perform as media of Zn^(2+)transfer.Therefore,high bulk ionic conductivity as well as excellent interface ion diffusion ability is obtained.

关键词： copolymer adhesion ionic conductivity dendrite-free interface kinetics

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