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Chinese Journal of Chemistry 2017年第5期35卷 591-595页

作者： shushuang li Fuzerong Wang Yongmei liu Yong Cao Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Department of Chemistry Fudan University Shanghai 200433 China

The discovery that supported gold catalysts can promote CO/H2O-mediated reduction at ambient temperatures is important to chemoselective synthesis and has gained significant attention in recent *** the alternative Pt group metal （PGM） catalysts can exhibit such exceptional performance is thus an interesting research *** far,no PGM catalyst shows activity for CO/H2O-mediated reduction at ambient ***,we demonstrate that it is possible to transform nonactive into highly active and selective catalysts for CO/H2O-mediated reduction by modulating the interfacial structure and electronic properties at the metal-support ***,highly active and chemoselective hydrogenation Pt,Ir,Rh and Pd catalysts can be prepared by decorating the exposed metal faces with partially reduced support species by means of a simple catalyst activation *** this way,it has been possible to dramatically facilitate the previously unappreciated PGM-catalyzed activation of CO molecules under mild conditions,which can make a significant contribution not only to reveal the intrinsic catalytic potential of supported PGMs but also to establish a more sustainable and industrially-relevant process.

关键词： nitroarenes reduction carbon monoxide PGM catalysts strong metal-support interactions

Facile synthesis and electrochemical properties of MnO_2/carbon nanotubes

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Particuology 2014年第4期12卷 34-38页

作者： Yang Lv Huanqiao li Yan Xie shushuang li Jia li Yongheng Xing Yujiang Song College of Chemistry and Chemical Engineering Liaoning Normal University Dalian National Laboratories for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian University of Technology

The poor electrical conductivity of MnO2 limits its use as an electrode material. To overcome this limitation, we report an easy and rapid approach to deposit nanosized MnO2 onto multi-wall carbon nanotubes functionalized with hydroxyl groups （MWCNTs-OH） by chemical reduction of KMnO4 with MnSO4 in aqueous solution under ambient conditions. Characterization with XRD and TEM reveals that the obtained MnO2/MWCNTs-OH composite is nanocrystalline and partially covered by Mn02 nanosheets with a thick- ness of 1-3 nm at a MnO2 loading of 20 wt%. Cyclic voltammetry （CV） and galvanostatic charge-discharge measurements reveal that the MnO2/MWCNTs-OH composite with a MnO2 loading of 20 wt% has a relatively high specific capacitance of 234 F/g at a scan rate of 2 mV/s and exhibits good cycling stability. Furthermore, the oxygen reduction reaction （ORR） shows that MnO2/MWCNTs-OH composite may have potential applications as a non-noble metal electrocatalyst in fuel cells and metal-air batteries.

关键词： MnO2 MWCNTs-OH SupercapacitorNon-noble metal electrocatalyst

light-controlled synthesis of uniform platinum nano- dendrites with markedly enhanced electrocatalytic activity

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Nano Research 2013年第10期6卷 720-725页

作者： Weifeng Si Jia li Huanqiao li shushuang li Jie Yin Huan Xu Xinwen Guo Tao, Zhang Yujiang Song Dalian National Laboratories for Clean Energy (DNL) Dalian Institute of Chemical Physics (DICP) Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China School of Chemistry and Chemical Engineering Liaoning Normal University 850 Huanghe Road Dalian 116029 China State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology Dalian 116024 China State Key Laboratory of Catalysis DICP Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China These two authors contributed equally to this work

We report a fast in situ seeding approach based on zinc（II） porphyrin （ZnP） under white light irradiation, leading to uniform spherical platinum nanodendrites with tunable sizes. The platinum nanodendrites exhibit significantly improved electrocatalytic activities toward oxygen reduction reaction （ORR） and methanol oxidation reaction （MOR） compared with commercial platinum black.

关键词： platinum nanodendrites zinc(II) porphyrin oxygen reduction reaction methanol oxidation reaction

Excellent thermal stability and high energy storage performances of BNT-based ceramics via phase-structure engineering

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Journal of Materiomics 2023年第6期9卷 1015-1023页

作者： Mingkun Wang Tian Bai Aina He Zhongbin Pan Jinghao Zhao Luomeng Tang Zhihe Zhao Jinjun liu shushuang li Weixing Xia Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo315201China University of Chinese Academy of Science Beijing100049China School of Materials Science and Chemical Engineering Ningbo UniversityNingbo315211China Ningbo Productivity Promotion Center Ningbo315040China

Herein,a novel strategy for regulating the phase structure was used to significantly enhance the recoverable energy storage density(Wrec)and the thermal stability via designing the(1-x)[(Bi_(0.5)Na_(0.5))_(0.7)Sr_(0.3)TiO_(3)]-xBiScO_(3)((1-x)BNST-xBS)relaxor ferroelectric *** incorporation of BS into BNST ceramics markedly increases the local micro-structure disorder,causing a high polarization and inhibiting polarization hysteresis for 0.95BNST-0.05BS ceramics,leading to a large Wrec of 5.41 J/cm^(3)with an ideal efficiency(h)of 78.5%.Meanwhile,transmission electron microscope(TEM)results further proved that the nano-domain structure and the tetragonal(P4bm)phase superlattice structure of 0.95BNST-0.05BS ceramics possess an excellent thermal stability(20-200℃).An outstanding Wrec value of 3.18×(1.00±0.03)J/cm^(3)and an h value of 74.500±0.025 are achieved under a temperature range from 20℃to 200℃.This work provides a promising method for phase-structure design that can make it possible to apply temperature-insensitive ceramic dielectrics with a high energy storage density in harsh environments.

关键词： Relaxor ferroelectric Energy storage properties Thermal stability Nano-domain

利用多功能、多用途的可再生甲酸实现化学品的绿色与可持续合成（英文）

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催化学报 2015年第9期36卷 1461-1475页

作者：柳翔李舒爽刘永梅曹勇复旦大学化学系上海市分子催化和功能材料重点实验室上海200433

近年来,随着化石资源日趋短缺以及由此带来的人类生存环境日益恶化,生物质等可再生资源的高效、可持续利用已成为各国科学家研究与关注的焦点.甲酸,生物精炼中的主要副产物之一,具备廉价易得、无毒、能量密度高以及可再生可降解等特性,... 详细信息

近年来,随着化石资源日趋短缺以及由此带来的人类生存环境日益恶化,生物质等可再生资源的高效、可持续利用已成为各国科学家研究与关注的焦点.甲酸,生物精炼中的主要副产物之一,具备廉价易得、无毒、能量密度高以及可再生可降解等特性,将其应用于新能源利用与化学转化,不仅有助于甲酸应用领域的进一步拓展,还有助于解决面向未来的生物精炼技术中的一些共性瓶颈问题.本文简要回顾了甲酸利用的研究历史,总结了甲酸作为高效、多用途试剂与原料在化学品合成及生物质催化转化等方面的最新研究进展,并对利用甲酸活化来实现高效化学转化的基本原理及催化体系进行了对比分析,指出今后研究重点应着眼于努力提高甲酸的利用效率,同时实现高选择性合成两方面,并在此基础上进一步拓展其应用领域.在化学品合成方面,甲酸作为一种环境友好可再生的多功能试剂可应用于多种官能团的选择转化过程.作为一种高含氢量的氢转移试剂或还原剂,甲酸相较传统氢气具有操作简便可控、条件温和、具有良好化学选择性等优点,广泛应用于醛酮、硝基、亚胺、腈、炔烃、烯烃等的选择还原以制取相应的醇、胺、烯烃和烷烃类化合物,以及醇类和环氧化物的氢解和官能团去保护等过程.鉴于甲酸亦可用作C1原料,作为多用途的关键基础试剂甲酸还可应用于包括喹啉衍生物的还原甲酰化、胺类化合物甲酰化和甲基化,烯烃羰化以及炔烃还原水合等多级串联反应,是实现精细复杂有机分子高效简约绿色合成的重要途径.该类过程的挑战在于寻求对甲酸及特定官能团的可控活化兼具高选择性和高活性的多功能催化剂.此外,近期有研究表明以甲酸为C1原料还可通过催化歧化反应直接高选择性合成甲醇等大宗化学品.在生物质催化转化方面,甲酸的多功能特性为实现绿色、安全、高原子经济性生物精炼过程提供了潜在可能.生物质资源是储量最大、最具潜力的可持续替代资源,但将其转化为可利用的资源形式仍然面临挑战.甲酸的酸性质及良好溶剂特性可应用于生物质原料预处理过程,实现木质纤维素组分分离和纤维素提取,相较传统无机酸预处理体系具有沸点低、易分离、不引入无机离子、对下游反应兼容性强等优点;而作为高效氢源,甲酸也被广泛研究应用于生物质平台化合物选择催化转化制高附加值化学品、木质素降解制芳烃化合物和生物油加氢脱氧精制处理等过程,相较依赖H2的传统氢化过程具有转化效率高、反应条件温和,简便安全并可有效减少相关生物精炼过程中化石资源的物耗与能耗等优势.最新研究表明,通过在温和条件下甲酸水溶液中解聚氧化木质素,可得到重量比大于60%的低分子量芳烃溶液,这一创新性发现为从木质素中直接提取高值芳香化学物等化学品带来了新的机遇.综上所述,生物基甲酸在绿色有机合成和生物质转化等方面表现出巨大潜力,而其多功能性和多用途性对于实现原料的高效利用及目标产物的高选择性至关重要.该领域目前已取得了一定成果并得到了快速发展,然而距实际产业应用还有相当距离,需要进一步探索.今后的研究重点应着眼于以下几个方面:(1)如何针对特定反应优选合适的催化活性金属及反应体系;(2)如何在其他原料和试剂存在条件下高效、可控地活化甲酸;(3)如何从分子层面理解复杂反应的反应机制;(4)如何在相关过程中稳定相应催化剂.展望未来,基于现代社会对环境、经济和可持续发展的需求,甲酸化学将得到产业界与学术界越来越多的关注和研究.

关键词：甲酸新型催化可再生氢能源环境友好型试剂化学合成生物精炼

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甲酸为氢源的甘油催化选择氢解

催化学报 2013年第11期34卷 2066-2074页

作者：袁静李舒爽于磊刘永梅曹勇复旦大学化学系上海市分子催化和功能材料重点实验室上海200433

以甲酸作为氢源,采用铜基复合金属氧化物催化剂,催化氢解甘油制备1,2-丙二醇,其中液相甲酸的高选择性分解是实现甘油氢解的必要和关键步骤.活性测试表明,高分散的铜和ZrO2载体间的协同作用对甲酸分解和甘油到1,2-丙二醇的转化至关重要,2... 详细信息

以甲酸作为氢源,采用铜基复合金属氧化物催化剂,催化氢解甘油制备1,2-丙二醇,其中液相甲酸的高选择性分解是实现甘油氢解的必要和关键步骤.活性测试表明,高分散的铜和ZrO2载体间的协同作用对甲酸分解和甘油到1,2-丙二醇的转化至关重要,20%Cu/ZrO2催化剂的活性最佳.由于避免使用相对昂贵的化石燃料氢,因而该催化体系在生物质的高值利用方面具有潜在的应用前景.

关键词：铜二氧化锆氢解甘油甲酸

High-Performance Electrocatalyst for Oxygen Reduction Based on Graphene Oxide, Dual N-Containing ligands, Iron, and Cobalt

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High-Performance Electrocatalyst for Oxygen Reduction Based ...

唐山市914名新入监人员HIV感染状况及健康教育效果评价

第十四届全国青年催化学术会议

作者： Yan Xie Huanqiao li Chizhou Tang shushuang li Jia li Yang Lv Xuming Wei Yujiang Song Dalian Institute of Chemical Physics Chinese Academy of Sciences

＜正＞Fuel cells and metal-air batteries are two of the most promising clean energy technologies. A key component of the devices is electrocatalyst that accelerates sluggish oxygen reduction reaction （ORR） at the cathode. Conventional electrocatalyst is based on precious metals like Pt, inevitably causing an unaffordable cost. Non-noble metal （NNM） electrocatalysts with low-cost, high activity and excellent

关键词： electrocatalyst oxygen reduction reaction graphene fuel cells

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中国艾滋病性病 2017年第2期23卷 155-157页

作者：运玲张志坤何金奎吕焱李树双张相芝唐山市疾病预防控制中心河北唐山063000

目的了解唐山市劳教所新收教的劳教人员中的艾滋病病毒(HIV)感染情况,以及干预前后劳教人员对艾滋病的知识、态度和行为的改变情况,为今后对该人群提供有效的健康教育方式和行为干预方法提供科学依据。方法对唐山市新入监的914名劳教人... 详细信息

目的了解唐山市劳教所新收教的劳教人员中的艾滋病病毒(HIV)感染情况,以及干预前后劳教人员对艾滋病的知识、态度和行为的改变情况,为今后对该人群提供有效的健康教育方式和行为干预方法提供科学依据。方法对唐山市新入监的914名劳教人员进行了HIV检测,并进行了艾滋病相关知识、态度和行为等情况的基线调查,艾滋病相关内容的健康教育和安全套推广等干预,6个月后再进行1次相同内容的干预调查。结果914名劳教人员中,共检出HIV阳性者5例,阳性检出率为0.55%。该人群干预前后对艾滋病的相关知识、态度、行为都发生了明显的变化,差异均有统计学意义(P<0.001)。结论加强劳教人员对艾滋病相关知识的干预措施,提高他们对艾滋病知识知晓率,从而降低危险行为,为降低该人群艾滋病的传播风险起到积极的促进作用。

关键词：新人监人员艾滋病健康教育效果评价

Constraints on holographic QCD phase transitions from PTA observations

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 71-78页

作者： Song He li li Sai Wang Shao-Jiang Wang Center for Theoretical Physics and College of Physics Jilin University School of Physical Science and Technology Ningbo University Max Planck Institute for Gravitational Physics (Albert Einstein Institute) CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of Sciences (UCAS) School of Physical Sciences University of Chinese Academy of Sciences (UCAS) Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences

The underlying physics of QCD phase transition in the early Universe remains largely unknown due to its strong-coupling nature during the quark-gluon plasma/hadron gas transition, yet a holographic model has been proposed to quantitatively fit the lattice QCD data while with its duration of the first-order phase transition(FoPT) left undetermined. At specific baryon chemical potential, the first-order QCD phase transition agrees with the observational constraint of baryon asymmetry. It, therefore, provides a scenario for phase transition gravitational waves(GWs) within the standard model of particle physics. If these background GWs could contribute dominantly to the recently claimed common-spectrum red noise from pulsar timing array(PTA) observations, the duration of this FoPT can be well constrained, and the associated primordial black holes are still allowed by current observations.

关键词： pulsar timing array QCD phase transition gravitational waves primordial black holes

Cell polarization in ischemic stroke: molecular mechanisms and advances

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Neural Regeneration Research 2025年第3期20卷 632-645页

作者： Yuanwei li Xiaoxiao Xu Xuan Wu Jiarui li Shiling Chen Danyang Chen Gaigai li Zhouping Tang Department of Neurology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina

Ischemic stroke is a cerebrovascular disease associated with high mortality and disability rates. Since the inflammation and immune response play a central role in driving ischemic damage, it becomes essential to modulate excessive inflammatory reactions to promote cell survival and facilitate tissue repair around the injury site. Various cell types are involved in the inflammatory response, including microglia, astrocytes, and neutrophils, each exhibiting distinct phenotypic profiles upon stimulation. They display either proinflammatory or anti-inflammatory states, a phenomenon known as ‘cell polarization.’ There are two cell polarization therapy strategies. The first involves inducing cells into a neuroprotective phenotype in vitro, then reintroducing them autologously. The second approach utilizes small molecular substances to directly affect cells in vivo. In this review, we elucidate the polarization dynamics of the three reactive cell populations(microglia, astrocytes, and neutrophils) in the context of ischemic stroke, and provide a comprehensive summary of the molecular mechanisms involved in their phenotypic switching. By unraveling the complexity of cell polarization, we hope to offer insights for future research on neuroinflammation and novel therapeutic strategies for ischemic stroke.

关键词： astrocyte polarization immune regulation inflammation ischemic injury microglia polarization neutrophil polarization signaling pathways stroke