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Enhancement of CH_(3)CO^(*) adsorption by editing d-orbital states of Pd to boost C–C bond cleavage of ethanol eletrooxidation

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Science China Chemistry 2024年第2期67卷 696-704页

作者： Yuchen Qin Fengqi Wang Pei liu jinyu Ye Qian Wang Yao Wang Guangce Jiang lijie liu Pengfang Zhang Xiaobiao liu Xin Zheng Yunlai Ren Junjun li Zhicheng Zhang College of Sciences Henan Agricultural UniversityZhengzhou450000China Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of ChemistrySchool of ScienceTianjin University&Collaborative Innovation Center of Chemical Science and EngineeringTianjin300072China College of Chemistry and Chemical Engineering Xiamen UniversityXiamen361005China Department of Analysis Sinopec Engineering Group Luoyang R&D Center of TechnologyLuoyang471000China School of Chemical and Material Engineering Jiangnan UniversityWuxi214211China Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology Liaocheng UniversityLiaocheng252000China

Improving the complete ethanol electrooxidation on Pd-based catalysts in alkaline media has drawn widely attention due to the high mass energy ***,the weak adsorption energy of CH_(3)CO^(*) on Pd restricts the C–C bond *** by the molecular orbital theory,we proposed the d-state-editing strategy to construct more unoccupied d-states of Pd for the enhanced interaction with CH_(3)CO^(*) to break C–C *** expected,the reduced number of e_g electrons and more unoccupied d-states of Pd successfully formed on as-prepared porous Rh Au–Pd Cu nanosheets(PNSs).Theoretical calculations show that the optimized d-states of Rh Au–Pd Cu PNS can effectively improve the adsorption of CH_(3)CO^(*) and drastically reduce the energy barrier of C–C bond cleavage,thus boosting the complete oxidation of *** charge ratio of C_1 pathway on Rh Au–Pd Cu PNSs is 51.5%,more than 2 times higher than that of Pd *** finding provides an innovative perspective for the design of highly-efficient noble-based electrocatalysts.

关键词： C–C bond cleavage CH_(3)CO^(*)adsorption unoccupied d-states ethanol oxidation reaction RhAu–PdCu porous nanosheets

Research progress in non-aqueous low-temperature electrolytes for sodium-based batteries

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Science China Chemistry 2024年

作者： jinyu Yang Mingxu Wang Jiafeng Ruan Qin li Jibo Ding Fang Fang Fei Wang School of Materials Science and Engineering Anhui University Yiwu Research Institute of Fudan University Department of Materials Science Fudan University

With the increasing demand and striking upsurge in the price of lithium carbonate, sodium-ion batteries(SIBs) have gained significant attentions due to their abundance over lithium-ion batteries(liBs). Some prototype SIBs have achieved great progress in terms of energy densities. Although SIBs show a relatively higher tolerance at the low temperature than liBs due to the weaker cation–solvent interaction, the low-temperature performance of SIBs remains a critical challenge restricted by the electrolyte solidification and sluggish interphasial kinetics. In this review, we briefly cover the latest research progress in usable low-temperature electrolytes for SIBs. In the meantime, the mitigating mechanism and low-temperature performance of the electrolytes in different SIB configurations are also discussed. The merits and demerits of ether-based and carbonate-based electrolytes are compared to demonstrate their potential and limitations, thus providing application principles for ether-based and carbonate-based electrolytes at low temperatures to maximize their advantages. Furthermore, mitigation strategies for lowtemperature electrolytes are emphasized to guide the future electrolyte design. Finally, we provide some perspectives on the development of the low-temperature electrolytes for SIBs.

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First-night effect in Insomnia Disorder: A Systematic Review and Meta-Analysis of Polysomnographic Findings

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First-night effect in Insomnia Disorder: A Systematic Review...

基于递归分析的混流生产模式机械加工过程能效分析和状态监测

中国睡眠研究会第十五届全国学术年会

作者： Sifan Hu Le Shi Zhe li Yundong Ma jinyu li Yanping Bao lin Lu Hongqiang Sun Peking University Sixth Hospital Suzhou Guangji Hospital Peking University Health Science Center National Institute on Drug Dependence Peking University

Polysomnographic studies have been performed to investigate the first-night effect in insomnia ***, these studies have revealed discrepant *** meta-analysis aimed to summarize and quantify the characteristics of the first-night effect in insomnia *** performed a systematic search of the PubMed, Medline, EMBASE, Web of Science and PsycINFO databases to identify studies published through October 2019.A total of 11,862 articles were identified, and seven studies with eight independent populations were included in the meta-analysis.A total of 639 subjects with insomnia disorder and 171 healthy controls underwent more than two consecutive nights of in-laboratory *** results demonstrated that both variables of sleep continuity and sleep architecture, other than slow wave sleep were significantly altered in the first night effect in insomnia ***, the results presented patients with insomnia disorder had a disruption of sleep continuity in the first night effect, including increased sleep onset latency and reduced total sleep time, compared to healthy ***, the findings show that patients with insomnia disorder experience the first night effect, rather than reverse first night effect, and the profiles of the first night effect in patients with insomnia are different from healthy *** indicate that an adaptation night is necessary when sleep continuity and sleep architecture is to be studied in insomnia disorder *** welldesigned studies with large samples are needed to confirm the results.

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计算机集成制造系统 2021年第5期27卷 1341-1350页

作者：李进宇王秋莲张炎南昌大学经济管理学院江西南昌330031

针对混流生产模式下机械加工过程的能量效率研究问题,提出一种基于递归分析和图像处理技术的能量效率分析与状态监测方法。通过对各类工件分别进行多次加工试验,采集加工过程功率数据,应用聚类算法分析功率的时域特征并找出聚类中心,基... 详细信息

针对混流生产模式下机械加工过程的能量效率研究问题,提出一种基于递归分析和图像处理技术的能量效率分析与状态监测方法。通过对各类工件分别进行多次加工试验,采集加工过程功率数据,应用聚类算法分析功率的时域特征并找出聚类中心,基于此建立各工件加工过程的参考功率数据库;在混流加工过程中,通过递归分析和图像匹配算法判断实时加工功率曲线与各类工件参考功率的相似程度,进而识别出实时加工工件类型和工件状态;基于工件状态识别的结果,计算得到工件加工过程的能量利用率;最后基于各工序的实时加工功率及其对应的参考功率交叉递归图,应用递归定量分析法实现对工序状态的监测。经过实验验证了方法的有效性,将该方法应用于混流加工模式下工件的能量效率水平分析和异常工序状态的在线识别,识别精度可达98.33%。

关键词：机械加工能量效率状态监测递归分析图像处理混流生产模式

Operation Status of Multidisciplinary Integrated Physics Experiment Platform in 2019

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IMP & HIRFL Annual Report 2019年第1期 307-308页

作者： li jinyu Zhang Tongmin Kang Long li Jun liu Huiping li Xiaogang Wu Qingfeng Xu Dan Xu lijun 不详

Since the beginning 2019,320 kV high-voltage platform for multi-disciplinary research with highly charged ions has been operated about 6620 h,including 4728.5 h for experiments for facility users from universities,ins... 详细信息

关键词： beam tuning Platform

我国科技期刊短视频营销推广的现状、问题及对策

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中国科技期刊研究 2020年第8期31卷 915-922页

作者：赵鑫李金玉曲阜师范大学传媒学院山东省日照市276826

【目的】探索媒体融合背景下科技期刊短视频营销推广的新模式和应对策略,为我国科技期刊市场化运作和产业化发展助力。【方法】运用案例分析法、对比研究法和归纳总结法对科技期刊短视频营销推广的现状及问题进行分析,探索科技期刊短视... 详细信息

【目的】探索媒体融合背景下科技期刊短视频营销推广的新模式和应对策略,为我国科技期刊市场化运作和产业化发展助力。【方法】运用案例分析法、对比研究法和归纳总结法对科技期刊短视频营销推广的现状及问题进行分析,探索科技期刊短视频营销推广的发展对策。【结果】AILSFA模式是科技期刊短视频营销推广的创新模式,能够显著提升科技期刊短视频营销推广的能力,这一模式包括6个环节:引起注意、激发兴趣、精准定位、构建场景、形成流量池思维和触发购买行为。【结论】科技期刊短视频营销推广需要组建专业的营销团队与短视频制作团队;对读者进行用户画像,加强内容的精准定位;进行线上线下多渠道、多形式的营销;打造品牌,实现品效合一。

关键词：科技期刊短视频营销推广 AILSFA模式媒体融合

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郑国生态环境的变化及原因初探

河南社会科学 2006年第2期14卷 133-135页

作者：李金玉郑州大学历史学院河南郑州450052

郑国东迁,以今新郑为其新都,重要的原因在于新郑有作为都城的优越生态环境。而郑国东迁后的生态环境也经历了由早期的良好状况到后期的严重破坏的变化,导致这种变化的原因是多方面的和复杂的。生态环境恶化产生的严峻后果又使郑国的统... 详细信息

郑国东迁,以今新郑为其新都,重要的原因在于新郑有作为都城的优越生态环境。而郑国东迁后的生态环境也经历了由早期的良好状况到后期的严重破坏的变化,导致这种变化的原因是多方面的和复杂的。生态环境恶化产生的严峻后果又使郑国的统治者有所醒悟,并采取了一些保护生态环境的措施。这种转变是发人深省的,它对于我们今天正在进行的经济建设很有借鉴价值。

关键词：郑国生态环境状况保护

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论两周时期城市发展对生态环境的影响

河南师范大学学报（哲学社会科学版） 2019年第4期46卷 108-112页

作者：李金玉新乡学院发展规划处

中国古代城市文明起源久远、灿烂辉煌,尤其是在两周时期,随着社会生产力的提高和社会经济的发展,出于政治、军事等需要,兴起了城市建设的高潮。这一时期城市建设取得了极大的成就,不仅城市数量多,而且规模大。两周时期城市营建,耗费大... 详细信息

中国古代城市文明起源久远、灿烂辉煌,尤其是在两周时期,随着社会生产力的提高和社会经济的发展,出于政治、军事等需要,兴起了城市建设的高潮。这一时期城市建设取得了极大的成就,不仅城市数量多,而且规模大。两周时期城市营建,耗费大量的木材、石材,造成对树木的过度砍伐,导致生态资源过度消耗。城市中人口大量聚集,其生产和生活需要,更加剧了人与生态环境的矛盾。由此产生了很多社会问题,引起了当时敏感的政治家、思想家的担忧。两周时期城市营建,既要依赖生态环境,同时又对生态环境造成了破坏。

关键词：周代城市生态环境

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辐照技术在酱油保鲜中的应用

中国酿造 2010年第7期29卷 17-19页

作者：李金玉武汉软件工程职业学院湖北武汉430205

酱油在生产过程中极易受到有害细菌、霉菌等的污染,在贮藏过程中再发酵或生霉,使酱油的成分发生变化严重影响酱油的质量。采用辐照技术可以安全有效地的杀灭酱油中的污染细菌,达到保鲜的目的。

关键词：辐照酱油保鲜安全性