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Dual elemental modulation in cationic and anionic sites of the multi-metal Prussian blue analogue pre-catalysts for promoted oxygen evolution reaction

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Progress in Natural Science:Materials International 2022年第6期32卷 705-714页

作者： Jun Li Min Guo Xue Yang Jiale Wang Kexin Wang Anran Wang fengcai lei Pin Hao Junfeng Xie Bo Tang College of Chemistry Chemical Engineering and Materials Science Key Laboratory of Molecular and Nano Probes (Ministry of Education) Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong Institute of Molecular and Nano Science Shandong Normal University

Designing advanced electrocatalysts for the oxygen evolution reaction（OER） is of great significance owing to its crucial role in facilitating the production of clean hydrogen energy via water splitting.To date,it has been widely accepted that a pre-oxidation process with the in-situ generation of the catalytically active high-valence metal sites is essential for promoting the OER behavior of most transition-metal-based OER catalysts,or more felicitously speaking,pre-catalysts.Hence,exploring such pre-catalysts with high pre-oxidation reactivity is of high promise.Herein,we proposed the dual elemental modulation in the cationic and anionic sites of the multi-metal Prussian blue analogue（PBA） pre-catalysts,resulting in promoted OER behavior benefitted from the efficient preoxidation ability as well as the multi-metal synergy.Detailed investigations indicate that the Co-containing multimetallic cations and mixed FeⅢCoⅢcyanide anions in NiCuCoⅡ-FeⅢCoⅢPBA（denoted as NiCuCoⅡ-FeⅢCoⅢ） are beneficial to OER catalysis owing to the high intrinsic activity guaranteed by the local Co3+active sites as well as the optimal multi-metal synergy.After the facile pre-oxidation process,additional high-valence Ni,Cu and Fe ions can be in-situ formed and serve as the active sites,thereby resulting in significantly improved OER behavior.For example,the OER current density of NiCuCoⅡ-FeⅢCoⅢexhibits 1.81 times enhancement even after 72 h continuous OER catalysis,and the required overpotential for 10 mA cm-2reduces from 288 mV for the fresh precatalyst to a remarkable record of 251 mV after the pre-oxidation-induced activation,making the optimal PBA-based catalyst a promising candidate for efficient and durable water electrolysis.

关键词： Prussian blue analogue Elemental modulation Oxygen evolution reaction Pre-oxidation Active site

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Novel(Ni, Fe)S2/(Ni, Fe)3S4 solid solution hybrid: an efficient electrocatalyst with robust oxygen-evolving performance

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Science China Chemistry 2020年第8期63卷 1030-1039页

作者： Pin Hao Ying Xin Jian Tian Liyi Li Junfeng Xie fengcai lei Lili Tong Hong Liu Bo Tang College of Chemistry Chemical Engineering and Materials ScienceInstitute of Materials and Clean EnergyCollaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of ShandongKey Laboratory of Molecular and Nano ProbesMinistry of EducationShandong Provincial Key Laboratory of Clean Production of Fine ChemicalsShandong Normal UniversityJinan 250014China State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China School of Materials Science and Engineering Shandong University of Science and TechnologyQingdao 266590China Intel Corporation HillsboroOR 97124USA

Fabrication of high-activity electrocatalysts with operational stability is desperately needed to achieve efficient energy conversion.Herein,for the first time,we highlight a novel electrocatalyst based on binary nickel iron sulfide solid solution hybrids on carbon cloth for oxygen evolution reaction.Benefitting from the synergistic effect of varied phases and the interfacial connection between(Ni,Fe)S2 and(Ni,Fe)3S4 to accelerate the charge transport,the Ni incorporation to optimize the electronic structure of the hybrids and the downshift of the d-band center to facilitate the desorption of oxygen intermediates,the partial charge-transfer between Fe and Ni to boost the generation of catalytically active Ni3+as well as the unique nanosphere structure to offer enough buffer area for the volume changes during constant redox reactions,the obtained binary nickel iron sulfide hybrids((Ni,Fe)S2/(Ni,Fe)3S4)display high catalytic reactivity with a low overpotential of 210 mV to reach the current density of 10 mA cm-2,and excellent stability with negligible activity deterioration,making the hybrid a promising candidate for electrocatalytic alkaline water oxidation.

关键词： binary nickel iron sulfide hybrids solid solution electrocatalysis oxygen evolution reaction

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Removal of toxic metal ions using chitosan coated carbon nanotube composites for supercapacitors

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Science China Chemistry 2018年第7期61卷 797-805页

作者： Pin Hao Xiaoye Ma Junfeng Xie fengcai lei Liyi Li Wenqian Zhu Xin Cheng Guanwei Cui Bo Tang College of Chemistry Chemical Engineering and Materials ScienceInstitute of Materials and Clean EnergyCollaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of ShandongKey Laboratory of Molecular and Nano ProbesMinistry of EducationShandong Provincial Key Laboratory of Clean Production of Fine ChemicalsShandong Normal UniversityJinan 250014China Intel Corporation Hillsboro OR 97124USA

Environmental pollution and energy crisis are two major global challenges to human beings.Recovering energy from wastewater is considered to be one of the effective approaches to address these two issues synchronously.As the main pollutants in wastewater,toxic heavy metal ions are the potential candidates for energy storage devices with pseudocapacitive behaviors.In this study,toxic metal ions of Cr(VI)and Cu(II)are removed efficiently by chitosan coated oxygen-containing functional carbon nanotubes,and the corresponding equilibrium adsorption capacity is 142.1 and 123.7 mg g^(-1).Followed by carbonization of metal ions-adsorbed adsorbents,Cu-and Cr N-loaded carbon composites can be obtained.Electrochemical measurements show that the supercapacitor electrodes based on Cu-and Cr N-loaded carbon composites have specific capacitance of 144.9 and 114.9 F g^(-1)at2 m V s^(-1),with superior electrochemical properties to pure chitosan coated carbon nanotubes after carbonization.This work demonstrates a new strategy for the resource-utilization of other heavy metal ions for energy devices,and also provides a new way to turn environmental pollutants into clean energy.

关键词：重金属离子有毒移动碳环境污染污染物质存储设备精力

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The Infection of Healthcare Workers and the Reinfection of Patients by Omicron Variant—Jiangsu Province,China,December 2022 to January 2023

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China CDC weekly 2023年第18期5卷 402-406页

作者： Chuanmeng Zhang Ting Guo lei Zhang Aiqin Gu Jun Ye Mei Lin Ming Chu fengcai Zhu Li Zhu The Affiliated Taizhou People’s Hospital of Nanjing Medical University Taizhou CityJiangsu ProvinceChina Nanjing University of Chinese Medicine Nanjing CityJiangsu ProvinceChina Jiangsu Provincial Center for Disease Control and Prevention Nanjing CityJiangsu ProvinceChina Nanjing Medical University Nanjing CityJiangsu ProvinceChina

Summary What is already known about this topic?Healthcare workers(HCWs)and previously infected patients(PIPs)may experience a wave of epidemic following the modification of the country’s coronavirus disease(COVID)-zero policy in China.What is added by this report?As of early January 2023,the initial wave of the COVID-19 pandemic among HCWs had effectively subsided,with no statistically significant differences observed in infection rates compared to those of their co-occupants.The proportion of reinfections among PIPs was relatively low,particularly in those with recent infections.What are the implications for public health practice?Medical and health services have resumed normal operations.For patients who have recently experienced severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infections,appropriate relaxation of policies may be considered.

关键词： sided operations resume

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火箭贮箱机铣零件非阳极氧化表面涂漆可行性分析

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电镀与涂饰 2022年第8期41卷 566-570页

作者：尚洪帅刘凤财李曼韩磊范全胜索雁伟天津航天长征火箭制造有限公司天津300462 首都航天机械有限公司北京100076

针对火箭贮箱机铣铝合金零件非阳极氧化表面光滑、粗糙度低而不满足涂漆要求的问题,通过分析机铣零件在碱腐蚀液中腐蚀不同时间后的表面状态及涂漆后漆层的附着力测试结果,提出了具有可行性的微腐蚀解决方案。经微腐蚀的铝合金零件上漆... 详细信息

针对火箭贮箱机铣铝合金零件非阳极氧化表面光滑、粗糙度低而不满足涂漆要求的问题,通过分析机铣零件在碱腐蚀液中腐蚀不同时间后的表面状态及涂漆后漆层的附着力测试结果,提出了具有可行性的微腐蚀解决方案。经微腐蚀的铝合金零件上漆层附着力小于等于1级,满足航天型号产品的质量要求。

关键词：铝合金阳极氧化涂漆腐蚀粗糙度附着力

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An integrative drug repositioning framework discovered a potential therapeutic agent targeting COVID-19

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Signal Transduction and Targeted Therapy 2021年第5期6卷 1585-1600页

作者： Yiyue Ge Tingzhong Tian Suling Huang Fangping Wan Jingxin Li Shuya Li Xiaoting Wang Hui Yang Lixiang Hong Nian Wu Enming Yuan Yunan Luo Lili Cheng Chengliang Hu Yipin lei Hantao Shu Xiaolong Feng Ziyuan Jiang Yunfu Wu Ying Chi Xiling Guo Lunbiao Cui Liang Xiao Zeng Li Chunhao Yang Zehong Miao Ligong Chen Haitao Li Hainian Zeng Dan Zhao fengcai Zhu Xiaokun Shen Jianyang Zeng Institute for Interdisciplinary Information Sciences Tsinghua UniversityBeijingChina NHC Key laboratory of Emeric Pathogenic Microbiology Jiangsu Provincial Center for Diseases Control and PreventionNanjingJiangsu ProvinceChina Shanghai Institute of Materia Medica Chinese Academy of SciencesShanghaiChina Silexon Al Technology Co. Ltd.NanjingJiangsu ProvinceChina Department of Computer Science University of Illinois at Urbana-ChampaignIllinoisILUSA School of Pharmaceutical Sciences Tsinghua UniversityBeijingChina School of Electronic Information and Communications Huazhong University of Science and TechnologyWuhanHubei ProvinceChina Institute of Pathology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina Department of Automation Tsinghua UniversityBeijingChina Inner Mongolia Alashan League Organization Establishment Committee Office Electronic Support Center AlashanInner MongoliaChina Convalife(Shanghai)Co. Ltd.ShanghaiChina Advanced Innovation Center for Human Brain Protection Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Beijing Advanced Innovation Center for Structural Biology Tsinghua-Peking Joint Center for Life SciencesDepartment of Basic Medical SciencesSchool of MedicineTsinghua UniversityBeijingChina Center for Global Health Nanjing Medical UniversityNanjingJiangsu ProvinceChina

The global spread of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)requires an urgent need to find effective therapeutics for the treatment of coronavirus disease 2019(COVID-19).In this study,we developed an integrative drug repositioning framework,which fully takes advantage of machine learning and statistical analysis approaches to systematically integrate and mine large-scale knowledge graph,literature and transcriptome data to discover the potential drug candidates against SARS-CoV-2.Our in silico screening followed by wet-lab validation indicated that a poly-ADP-ribose polymerase 1(PARP1)inhibitor,CVL218,currently in Phase I clinical trial,may be repurposed to treat COVID-19.Our in vitro assays revealed that CVL218 can exhibit effective inhibitory activity against SARS-CoV-2 replication without obvious cytopathic effect.In addition,we showed that CVL218 can interact with the nucleocapsid(N)protein of SARS-CoV-2 and is able to suppress the LPS-induced production of several inflammatory cytokines that are highly relevant to the prevention of immunopathology induced by SARS-CoV-2 infection.

关键词： prevention respiratory acute

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酶菌协同处理对微拟球藻营养功能成分及生物活性的影响

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食品工业科技 2023年第21期44卷 198-207页

作者：辛易燃尤升波武俊瑞卢龙飞仝蕾刘凤彩韩福文于金慧乌日娜山东省农业科学院农作物种质资源研究所山东济南250100 沈阳农业大学食品学院辽宁沈阳110866 济南康多宝生物技术有限公司山东济南250100 辽宁省食品发酵技术工程研究中心辽宁沈阳110866 沈阳市微生物发酵技术创新重点实验室辽宁沈阳110866 威海长青海洋科技股份有限公司山东威海264300

为提高微拟球藻开发利用价值,本文开展了酶菌协同处理对微拟球藻营养功能成分及生物活性影响的研究。采用木瓜蛋白酶酶解微拟球藻,利用单因素和响应面试验获得其最佳酶解工艺,随后通过益生菌发酵酶解基质,研究发酵前后总酚、多肽和黄酮... 详细信息

为提高微拟球藻开发利用价值,本文开展了酶菌协同处理对微拟球藻营养功能成分及生物活性影响的研究。采用木瓜蛋白酶酶解微拟球藻,利用单因素和响应面试验获得其最佳酶解工艺,随后通过益生菌发酵酶解基质,研究发酵前后总酚、多肽和黄酮含量以及体外抗氧化和降血脂活性的变化,并对发酵后的微拟球藻酶液进行感官评价。结果表明:微拟球藻的最佳酶解工艺为:酶量5.0%、pH8.0、酶解时间4.0 h、酶解温度76℃;在此条件下酶解后发酵可有效提高产物中多肽的含量,其中混菌发酵组提高了近1.3倍,总酚含量提高了5.1%,同时总黄酮的含量降低了32.5%;酶菌协同处理显著增强了其抗氧化和胰脂肪酶抑制活性,其中混菌发酵组DPPH自由基清除率提高了1.2倍,胰脂肪酶清除率提高了59.4%。此外,发酵后感官评分显著提升。可见,酶菌协同发酵可显著提高微拟球藻多肽含量、抗氧化活性、降血脂活性及感官特性,为开发功能型发酵产品提供了参考和技术支持。

关键词：微拟球藻酶菌协同活性成分抗氧化降血脂

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基于串口的传统仪器自动测试系统研究

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微计算机信息 2006年第6S期22卷 190-192页

作者：雷宇崔凤彩于佳高占凤石家庄铁道学院计算机系 050043 河北青年管理干部学院石家庄铁道学院

利用超级终端对带有RS-232串口的多波长计与计算机的连接串口进行了初步检测,并用与接口无关的VISA程序库组建了基于虚拟仪器技术的多波长计仪器控制系统。该系统通过远程命令可进行参数设置、执行单次/循环测量等操作。测量结果带有测... 详细信息

利用超级终端对带有RS-232串口的多波长计与计算机的连接串口进行了初步检测,并用与接口无关的VISA程序库组建了基于虚拟仪器技术的多波长计仪器控制系统。该系统通过远程命令可进行参数设置、执行单次/循环测量等操作。测量结果带有测量日期和时间,并且可自动存入EXCEL文件中,便于及时分析测量数据,也有助于保留历史记录、了解被测物理量的变化趋势。采用仪器控制技术完善后的多波长计测试系统增加了自动性和通用性、更适合于实际应用。

关键词：虚拟仪器超级终端串行通信仪器控制

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A Streptococcus suis serotype 2 caused streptococcal toxic shock syndrome(STSS) in a patient

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Journal of Nanjing Medical University 2008年第5期22卷 313-316页

作者： Yefei Zhu Zhongmin Tan Lingyang Zhu Hongxing Pan Xuejun Zhang lei Xu Huimin Qian Ling Gu Xun Ye Chen Dong Changjun Bao Rongqiang Zhu fengcai Zhu Hua Wang Jiangsu Provincial Centerjor Disease Control and Prevention Nanjing 210009 Jiangsu Province China Lianyungang Center for Disease Control and Prevention Lianyungang 222003 Jiangsu Province China

Streptococcus suis （S. suis） is a Gram-positive, facultatively anaerobic coccus that has been implicated as the cause of a wide range of clinical disease syndromes in swine and other domestic animals. S. suis has also been implicated in disease in humans, especially anaong abattoir workers, swine and pork handlers. Here we report a case of streptococcal toxic shock syndrome（STSS） caused by S. suis in a 59-year-old man. Despite of intensive treatment, the patient died of shock with multiple organ failure 14 h after admission. One bacterial isolate obtained from blood culture was identified to the species level by biochemical tests and serological tests as S. suis serotype 2. Identification was confirmed by PCR amplification of genes encoding 16sRNA of S. suis and the capsule of S. suis serotype 2（cps 23）. Genes encoding virulence factors were also detected. An investigation to identify the source of S. suis revealed that several days before admission the affected man had been handling sick pigs or their meat. Transmission may occur through breaks in the skin of feet with tinea due to that no measures for personal protection was taken. This case should highten awareness of the potential for occupational exposure and human infection with S. suis.

关键词： Streptococcus suis streptococcal toxic shock syndrome PCR

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优化抽油机井系统设计技术的应用与展望

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石油钻采工艺 2009年第A1期31卷 84-87页

作者：郭吉民张胜利郭磊谢巍曾令兵刘凤彩华北油田公司采油工艺研究院河北任丘062552 冀东油田公司开发部河北唐山063200 华北油田公司采油一厂河北任丘062552

为了提高抽油机井系统效率,华北油田从2002年起,开展了"抽油机井系统优化设计方法研究与现场应用"的课题研究,利用参数敏感性分析法建立了以"产量、效率、寿命"三者统一为原则的优化设计方法,实现了从提高抽油机井系统效率(SysEff)软件... 详细信息

为了提高抽油机井系统效率,华北油田从2002年起,开展了"抽油机井系统优化设计方法研究与现场应用"的课题研究,利用参数敏感性分析法建立了以"产量、效率、寿命"三者统一为原则的优化设计方法,实现了从提高抽油机井系统效率(SysEff)软件向优化抽油机井系统设计软件(OPRS)系统的转化,5年来OPRS系统在华北油田实现了规模应用,已成为油田节能、提高油井管理水平的重要技术。

关键词：抽油机井系统效率节能分析优化

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