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Electrochemical Reduction of Benzo[b]thiophene 1,1-Dioxides with HFIP as Hydrogen Donor

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Chinese Journal of Chemistry 2024年第6期42卷 585-591页

作者： Ming-Zhong Guo Mei-Jin Mou Zhuo Chen shao-fei Ni Ming Li Li-Rong Wen Lin-Bao Zhang State Key Laboratory Base of Eco-Chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science & TechnologyQingdaoShandong266042 China Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province Shantou UniversityShantouGuangdong515063 China

A straightforward electrochemical reduction of benzo[b]thiophene 1,1-dioxides with HFIP as the hydrogen donor has been reported in an undivided cell under metal-free ***,the tolerance of various functional groups and ... 详细信息

关键词： Electrochemistry Reduction Benzo[b]thiophene 1,1-dioxides Deuterium Hydrogen source

Spatial-temporal shifting patterns and in situ conservation of spotted seal(Phoca largha)populations in the Yellow Sea ecoregion

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Integrative Zoology 2024年第2期19卷 307-318页

作者： Hongfei ZHUANG fei shao Chao ZHANG Wancai XIA Shouqiang WANG Fangyuan QU Zongling WANG Zhichuang LU Linlin ZHAO Zhaohui ZHANG First Institute of Oceanography Ministry of Natural ResourcesQingdaoChina Department of Natural Resources of Shandong Province Shandong Forestry Protection and Development Service CenterJinanChina National Park(Protected Areas)Development Center National Forestry and Grassland AdministrationBeijingChina College of Life Science China West Normal UniversityNanchongChina Liaoning Ocean and Fisheries Science Research Institute DalianChina

Understanding the habitat shifting pattern is a prerequisite for implementing in situ conservation of migratory *** seals(Phoca largha)inhabiting the Yellow Sea ecoregion(YSE)comprise a small population with independent genes and represent a charismatic flagship species in this ***,this population has declined by 80%since the 1940s,and increased support from the countries around the YSE is urgently needed to address the potential local extinction risk.A time-series niche model and life-history weighted systematic conservation planning were designed on the basis of a satellite beacon tracking survey(2010–2020)of the YSE *** results showed clustering and spreading shifting patterns during the breeding and migratory seasons,*** closed-loop migration route formed in the YSE indicated that this population might be geographically isolated from populations in other breeding areas around the *** conservation priority area(CPA),with an area of 19632 km^(2)(3.58%of the total YSE area),was the most effective response to the potential in situ ***,nearly 80%of the CPA was exposed outside the existing marine protected areas(MPAs).Future establishment of MPAs in China should strategically consider the conservation gap identified herein,and it is recommended for Korea’s closed fishing season to be spatially set in the western Korean Peninsula from May to *** study also exemplified that the lack of temporal information would lead to the dislocation of niche modeling for migratory species represented by spotted *** should be paid to protecting small and migratory populations in marine biodiversity conservation planning.

关键词： conservation priority area marine protected area migration seasonal management spotted seal

Recent advances of high-entropy electrocatalysts for water electrolysis by electrodeposition technology:a short review

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Rare Metals 2024年第6期43卷 2371-2390页

作者： Han-Ming Zhang shao-fei Zhang Li-Hao Zuo Jia-Kang Li Jun-Xia Guo Peng Wang Jin-Feng Sun Lei Dai Hebei Key Laboratory of Flexible Functional Materials School of Materials Science and EngineeringHebei University of Science and TechnologyShijiazhuang 050018China Department of Chemistry National University of SingaporeSingapore117543Singapore

Hydrogen is considered as the promising energy carrier to substitute traditional fossil fuel,due to its cleanliness,renewability and high energy *** electrolysis is a simple and eonvenient technology for hydrogen *** efficiency of water electrolysis for hydrogen production is limited by the electrocatalytic performances on hydrogen evolution reaction(HER)and oxygen evolution reaction(OER).The exorbitant Pt-and Ir-/Ru-based electrocatalysts as optimal HER and OER electrocatalysts,respectively,restrict water electrolysis ***,non-precious metal-based high-entropy electrocatalysts have exhibited excellent electrocatalytic activities and long-term stabilities for water electrolysis,as promising precious cataly st ***,the construction of the high-entropy electroc atalysts is vital to water electrolysis *** technology is an efficient method for the preparation of high-entropy electrocatalysts due to its simple,fast,energy-saving and environmental-friendly ***-component co-precipitation facilely occurs during the electroredox in electrodeposition ***-entropy alloys,oxides,(oxy)hydroxides,phosphides and phosphorus sulfide oxides have been successfully prepared by galvanostatic,potentiostatic electrodeposition,cyclic voltammetry,pulse,nanodroplet-mediated and cathodic plasma electrodeposition ***,introduction of the development of high-entropy electrocatalysts synthesized by electrodeposition technology is significant to researchers and *** and outlooks are also concluded to boost the industrial application of electrodeposition in water electrolysis and other energy conversion areas.

关键词： High-entropy electrocatalysts Electrodeposition technology Water electrolysis Multi-component co-precipitation Excellent electrocatalytic performances

In situ regulating intimately connected heterostructure by decomposition of solid solution oxides toward high-efficient water oxidation

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Rare Metals 2024年第4期43卷 1557-1569页

作者： shao-fei Zhang Xiao-Lu Yin Jin Wang Jian-Li Kang Tian-Tian Li Jin-Feng Sun Yong-Qiang Meng Jian-Jiang Wang Dian-Long Wang Kai-Qiang Qin Hebei Key Laboratory of Flexible Functional Materials/Hebei Key Laboratory of Material Near-Net Forming Technology School of Materials Science and EngineeringHebei University of Science and TechnologyShijiazhuang050018China Key Laboratory of Advanced Ceramics and Machining Technology/Ministry of Education School of Materials Science and EngineeringTianjin UniversityTianjin300072China Electrochemical Engine Center Department of Mechanical EngineeringPennsylvania State UniversityUniversity ParkPA16802USA

Heterogeneous interfaces produced by interdomain interactions on a nanoscale performs a crucial role in boosting the properties of an electrocatalyst toward oxygen evolution reaction(OER)***,a series of dual-phase electrodes with intimately connected heterointerfaces are prepared by in situ decomposing solid solution oxide of Ni_(x)Co_(y)Fe_(100-x-y)O,which grew on Ni foam massively via an ultrafast combustion ***,with high-reaction kinetics caused by the reduction treatment at 450℃,the less electronegative Fe and Co are more oxyphilic than Ni,which facilitated their co-exsolution and formation of CoFe_2O_4/NiO oxide with enriched oxygen *** from the nanoporous framework,heterojunction structure,and oxygen defects,the self-supporting electrodes present rapid charge/mass transmission and provide abundant active sites for *** optimized sample(R-SNCF4.5)shows low overpotentials of 226 and 324 mV at 10 and100 mA·cm^(-2),a small Tafel slope(46.7 mV·dec^(-1)),and excellent *** assembled R-SNCF4.5//Pt/C/NF electrolyzer demonstrates continuous electrolysis over 50 h at a current density of 10 mA·cm^(-2),under 1.51 *** functional theory(DFT)calculations verify that the strong electronic modulation plays a critical part in the CoFe_2O_4/NiO hybrid by lowering the energy barriers for the ratedetermining steps,and Fe sites are the most active OER sites.

关键词： Rapid combustion Decomposition of solid solution oxide Dual-phase heterostructure Oxygen evolution reaction Theoretical calculation

工业机器人、技能结构升级与企业劳动收入份额

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吉林大学社会科学学报 2024年第3期64卷 144-165,238页

作者：余长林邵飞飞厦门大学宏观经济研究中心暨邹至庄经济研究院厦门大学经济学院厦门361005

提高劳动报酬在初次分配中的比重是促进共同富裕的基础。机器人应用在引发企业生产力与生产方式变革的同时,将如何重塑生产要素分配格局?为此,文章通过构建理论模型探讨了工业机器人对企业劳动收入份额的影响机理,并利用中国制造业A股... 详细信息

提高劳动报酬在初次分配中的比重是促进共同富裕的基础。机器人应用在引发企业生产力与生产方式变革的同时,将如何重塑生产要素分配格局?为此,文章通过构建理论模型探讨了工业机器人对企业劳动收入份额的影响机理,并利用中国制造业A股上市公司数据实证考察了工业机器人应用对制造企业劳动收入份额的影响。研究发现,工业机器人应用提高了制造企业劳动收入份额,内生性检验和稳健性检验进一步支持了该结论。基于学历和岗位双重维度的机制分析表明,工业机器人应用主要通过技能结构升级提高企业劳动收入份额。异质性分析表明,在国有企业、技术人员占比低的企业、资本密集型行业、资本劳动替代弹性小的行业、中西部地区和有政策支持的地区,工业机器人应用对企业劳动收入份额的提升作用更为显著。

关键词：工业机器人劳动收入份额技能结构升级技能偏向性

Catalytic Asymmetric Diastereodivergent Synthesis of 2-Alkenylindoles Bearing both Axial and Central Chirality

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Precision Chemistry 2024年第5期2卷 208-220页

作者： Shuang Yang Jia-Bo Huang Da-Hua Wang Ning-Yi Wang Yu-Yu Chen Xin-Yan Ke Hao Chen shao-fei Ni Yu-Chen Zhang Feng Shi Research Center of Chiral Functional Heterocycles School of Chemistry and Materials ScienceJiangsu Normal UniversityXuzhou 221116China Department of Chemistry Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong ProvinceShantou UniversityShantou 515063China Department of Otolaryngology Xuzhou First People’s HospitalAffiliated Xuzhou Municipal Hospital of Xuzhou Medical UniversityXuzhou 221002China School of Petrochemical Engineering Changzhou UniversityChangzhou 213164China

The catalytic asymmetric diastereodivergent synthesis of axially chiral 2-alkenylindoles was established via chiral phosphoric acid-catalyzed addition reactions of C3-unsubstituted 2-alkenylindoles with o-hydroxybenzyl alcohols under different reaction *** this strategy,two series of 2-alkenylindoles bearing both axial and central chirality were synthesized in a diastereodivergent fashion with moderate to high yields and good stereoselectivities(up to 99%yield,95:5 er,>95:5 dr).Moreover,theoretical calculations were performed on the key transition states leading to different stereoisomers,which provided an in-depth understanding of the origin of the observed stereoselectivity and diastereodivergence of the products under different reaction *** importantly,these 2-alkenylindoles were utilized in asymmetric catalysis as chiral organocatalysts and in medicinal chemistry for evaluation of their cytotoxicity,which demonstrated their potential *** study has not only established the catalytic atroposelective synthesis of axially chiral 2-alkenylindoles,but also provided an efficient strategy for catalytic asymmetric diastereodivergent construction of indole-based scaffolds bearing both axial and central chirality.

关键词： 2-Alkenylindole Axial chirality Central chirality Diastereodivergent synthesis Chiral phosphoric acid

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金融数据分类分级治理的法律障碍与纾解路径

金融与经济 2024年第6期 15-25页

作者：闫夏秋邵菲河海大学法学院西南政法大学经济法学院

金融数据分类分级作为金融数据治理的逻辑起点和制度基础,存在差异管控设置精细化不足、各类标准无法衔接、尚未制定金融行业重要数据目录等问题。究其根本原因在于目前中国在金融数据分类分级法律治理方面存在制度供给缺位,体现在立法... 详细信息

金融数据分类分级作为金融数据治理的逻辑起点和制度基础,存在差异管控设置精细化不足、各类标准无法衔接、尚未制定金融行业重要数据目录等问题。究其根本原因在于目前中国在金融数据分类分级法律治理方面存在制度供给缺位,体现在立法位阶低、立法内容原则、软法规范居多、法律定位模糊等问题。基于此,应当从立法定位的双重性、管控手段的差异性、治理体系的动态性三个方面健全制度的理论逻辑,进而提出细化各类金融数据针对性治理措施、构建各类标准衔接互通机制、制定金融领域重要数据目录、丰富金融数据级别变更的具体场景以及完善金融数据分类分级责任制度等对策。

关键词：金融数据数据分类分级数据治理重要数据

百万千瓦二次再热机组汽动给水泵高效经济运行探究

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上海节能 2024年第1期 159-165页

作者：邵飞中国大唐集团科学技术研究总院有限公司华东电力试验研究院

百万千瓦二次再热机组给水泵1×100%BMCR容量配置已成当前配置主流。介绍了百万千瓦二次再热机组给水泵配置现状及中低负荷段给水流量异常波动问题,分析研究了波动产生的原因,并提出了改造措施,为解决该类问题提供了思路和借鉴。

关键词：百万千瓦超超临界二次再热给水泵流量波动

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基于粒子群优化的德州扑克在线对手利用

控制与决策 2024年第5期39卷 1687-1696页

作者：胡振震陈少飞袁唯淋李鹏陈璟国防科技大学智能科学学院长沙410073

德州扑克中,相比于采用均衡策略求解的方法,对手利用是针对存在弱点的对手以获取更大收益的更有效方法.然而在面对一个全新对手时,在线条件下如何高效利用对手仍然是一大难题.现有方法常采用离线训练在线适应的方式来避开这一问题,即利... 详细信息

德州扑克中,相比于采用均衡策略求解的方法,对手利用是针对存在弱点的对手以获取更大收益的更有效方法.然而在面对一个全新对手时,在线条件下如何高效利用对手仍然是一大难题.现有方法常采用离线训练在线适应的方式来避开这一问题,即利用学习、演化等方法,通过海量离线训练来获得具有对手适应性的模型,使其能在比赛中适应不同的对手,而不是在比赛中针对一个新对手在线主动地优化自身策略.对此,以在线主动策略优化实现有效对手利用为目的,基于时间维的粒子定义提出一种基于粒子群优化的策略优化方法,将在线策略优化的思路引入德州扑克这种具有强随机性的博弈问题中,开展对手利用并实现在线比赛收益最大化.针对适应度计算受随机运气影响以及部分对手针对性策略难以优化的问题,提出一种基于局部最优解替代、全局最优解替代的改进粒子群优化算法(BR-PSO).实验结果表明,对于标准PSO方法难以针对的对手,所提出的方法能有效获得对手的针对性策略以实现最大化对手利用,而且优化策略的收益能够媲美基于手牌预测AI的收益.

关键词：粒子群优化策略优化最优解替代对手利用在线比赛德州扑克