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Multiple metallic dopants in nickel nanoparticles for electrocatalytic oxygen evolution

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Progress in Natural Science:Materials International 2023年第1期33卷 67-73页

作者： Yan Huang Jingrui Han Haibin Wang Lihua Liu Hongyan Liang School of Materials Science and Engineering Tianjin University Key Laboratory of Efficient Utilization of Low and Medium Grade Energy Ministry of Education Tianjin University College of Innovation and Entrepreneurship Shanghai Jianqiao University

Developing efficient oxygen evolution reaction(OER) electrocatalysts is of great importance for sustainable energy conversion and storage. Ni-based catalysts have shown great potential as OER electrocatalysts, but their performance still needs to be improved. Herein, we report the multiple metal doped nickel nanoparticles synthesized via a simple oil phase strategy as efficient OER catalysts. The FeMnMoV–Ni exhibits superior OER performance with an overpotential of 220 mV at 10 mA cm-2and a long-term stability of 250 h in 1 M KOH solution. In situ Raman analysis shows that the NiOOH site works as the active center and multiple metallic dopants facilitate the formation of NiOOH. Mo and V dopants promote the formation of high-valence state of Ni sites, and Mn dopants increase the electrochemical active surface area and expose more active sites. This work provides a novel strategy for catalyst design, which is critical for developing multiple metal doped catalysts.

关键词： Multiple metallic dopants Oxygen evolution Electrocatalysts In situ Raman Nickel

Synergistic phosphorized NiFeCo and MXene interaction inspired the formation of high-valence metal sites for efficient oxygen evolution

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Journal of Materials Science & Technology 2022年第11期106卷 90-97页

作者： Ning Li Jingrui Han Kaili Yao Mei han Zumin Wang Yongchang Liu Lihua Liu Hongyan Liang School of Materials Science and Engineering Tianjin UniversityTianjin 300350China Key Laboratory of Efficient Utilization of Low and Medium Grade Energy Ministry of EducationTianjin UniversityTianjin 300350China College of Innovation and Entrepreneurship Shanghai Jianqiao UniversityShanghai 201306China State Key Lab of Hydraulic Engineering Simulation and Safety School of Materials Science and EngineeringTianjin UniversityTianjin 300354China

Exploring low-cost,high-performance,and stable electrocatalysts toward the oxygen evolution reaction(OER)is highly desired but remains challenging.Transition metal hydroxide has been wildly utilized as a promising candidate,but practical implementation is impeded by insufficient catalytic activity,easy agglomeration,and poor conductivity.Here,we report that both phosphorization and combination with MXnene can improve the catalysts’intrinsic activity and conductivity.Besides,MXene also prevents the agglomeration of the nanoparticles,resulting in the enhanced exposure of active sites.Experimental char-acterizing and density functional theory simulations revealed that P species can attract electrons to pro-mote the formation of high-valence states of adjacent metal atoms,and coupling MXene support can effectively modulate the electronic structure and optimize the d-band center,which boosts the OER per-formance.Consequently,the optimized NiFeCoP/Mxene catalyst exhibits a low overpotential of 240 mV at a current density of 10 mA cm^(−2),a small Tafel slope of 55 mV dec^(−1),and superior long-term stability of 40 h in 1 M KOH electrolyte,which is superior to other counterparts.

关键词： Transition metal phosphide Ti3C2Tx MXene Electrocatalyst Oxygen evolution

Visible-light-irradiated tandem sulfonylation/cyclization of indole tethered alkenes for the synthesis of tetrahydrocarbazoles

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Chinese Chemical Letters 2022年第11期33卷 4886-4890页

作者： Yingjie Yu Aiyao Liu jingrui He Chengting Wang Haibo Mei Jianlin han Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsCollege of Chemical EngineeringNanjing Forestry UniversityNanjing 210037China

A visible-light-mediated reaction of indole derivatives employing arylsulfonyl chlorides as sulfonyl surrogates has been developed,which proceeds via the sequence of reduction of sulfonyl chloride,sulfonylation,and intramolecular cyclization.This mild protocol transforms a diverse array of indole tethered alkenes and simple sulfonyl chlorides into highly valuable functionalized tetrahydrocarbazoles in good yields.This reaction is also suitable for gram-scale synthesis,which provides an efficient and green access to multi-substituted tetrahydrocarbazoles.

关键词： Visible-light-irradiation Sulfonylation Tetrahydrocarbazoles Indoles Tandem radical reaction Sulfonyl chlorides

Multicomponent transition metal phosphide for oxygen evolution

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International Journal of Minerals,Metallurgy and Materials 2022年第3期29卷 503-512页

作者： Lihua Liu Ning Li Jingrui Han Kaili Yao Hongyan Liang College of Innovation and Entrepreneurship Shanghai Jianqiao UniversityShanghai 201306China School of Materials Science and Engineering Tianjin UniversityTianjin 300350China Qinghai Provincial Key Laboratory of Nanomaterials and Nanotechnology Qinghai Minzu UniversityQinghai 810007China Key Laboratory of Efficient Utilization of Low and Medium Grade Energy Ministry of EducationTianjin UniversityTianjin 300350China

Transition metal phosphides(TMPs)have exhibited decent performance in an oxygen evolution reaction(OER),which is a kinetic bottleneck in many energy storages and conversion systems.Most reported catalysts are composed of three or fewer metallic components.The inherent complexity of multicomponent TMPs with more than four metallic components hinders their investigation in rationally designing the structure and,more importantly,comprehending the component-activity correlation.Through hydrothermal growth and subsequent phosphor-ization,we reported a facile strategy for combining TMPs with tunable elemental compositions(Ni,Fe,Mn,Co,Cu)on a two-dimensional ti-tanium carbide(MXene)flake.The obtained TMPs/MXene hybrid nanostructures demonstrate homogeneously distributed elements.They ex-hibit high electrical conductivity and strong interfacial interaction,resulting in an accelerated reaction kinetics and long-term stability.The res-ults of different component catalysts’OER performance show that NiFeMnCoP/MXene is the most active catalyst,with a low overpotential of 240 mV at 10 mA·cm−2,a small Tafel slope of 41.43 mV·dec−1,and a robust long-term electrochemical stability.According to the electrocata-lytic mechanism investigation,the enhanced NiFeMnCoP/MXene OER performance is due to the strong synergistic effect of the multi-ele-mental composition.Our work,therefore,provides a scalable synthesis route for multi-elemental TMPs and a valuable guideline for efficient MXene-supported catalysts design.

关键词： multicomponent transition metal phosphides electrocatalytic oxygen evolution reaction MXene synergistic effect

Fluorine-containing drugs approved by the FDA in 2021

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Chinese Chemical Letters 2023年第1期34卷 29-38页

作者： jingrui He Ziyi Li Gagan Dhawan Wei Zhang Alexander E.Sorochinsky Greg Butler Vadim A.Soloshonok Jianlin han Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsCollege of Chemical EngineeringNanjing Forestry UniversityNanjing 210037China Department of Biomedical Science Acharya Narendra Dev CollegeUniversity of DelhiNew Delhi 110019India Department of Chemistry University of Massachusetts BostonBostonMA 02125United States V.P.Kukhar Institute of Bioorganic Chemistry and Petrochemistry The National Academy of Sciences of UkraineKyiv 02094Ukraine Oakwood Chemical Inc.EstillSC 29918United States Department of Organic Chemistry I Faculty of ChemistryUniversity of the Basque Country UPV/EHU20018 San SebastiánSpain IKERBASQUE Basque Foundation for SciencePlaza Bizkaia48013 BilbaoSpain

Nine new fluorine-containing drugs have been approved by the US Food and Drug Administration(FDA)in 2021,which are presented in this review article.These small molecular drugs feature aromatic fluorine,trifluoromethyl and chlorodifluoro groups.The therapeutic areas of these fluorine-containing drugs include multiple myeloma,lymphoma,HIV,chronic heart failure,chronic myeloid leukemia,(ANCA)-associated vasculitis,migraines,von Hippel-Lindau disease,and non-small cell lung cancer.The brief biological activities and the synthetic methods have been discussed in this review for each of these nine drugs.

关键词： Fluorine-containing compounds Blockbuster drugs Pharmaceuticals Anti-cancer Drug design and development Asymmetric synthesis

LEO Mega Constellations:Review of Development,Impact,Surveillance,and Governance

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Space(Science & Technology) 2022年第1期2022卷 472-488页

作者： jingrui Zhang Yifan Cai Chenbao Xue Zhirun Xue han Cai School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China

The rapid development of Low Earth Orbit(LEO)mega constellations has significantly contributed to several aspects of human scientific progress,such as communication,navigation,and remote sensing.However,unrestrained deployment of constellations has also strained orbital resources and increased spacecraft congestion in LEO,which seriously affects the safety of in-orbit operations of many space assets.For the long-term and sustainable development of space activities in LEO regions,space environment stability must be maintained using more rational surveillance and governance mechanisms.This review contributes to the research gap and facilitates the development of LEO mega constellations.First,the current development of typical LEO mega constellations is reviewed,followed by the analysis of the impact of LEO mega constellations in terms of astronomical observation,spacecraft safety in orbit,and space environment evolution.Then,two main solutions to conduct the challenges raised by LEO mage constellations are elaborated:one is to ensure the safety operation of spacecraft using space surveillance infrastructures and space situational awareness technologies,and the other is to accelerate the deorbit of constellation satellites at the end of life based on postmission disposal and active removal methods.Finally,the future development and potential research directions of LEO mega constellations are prospected.

关键词： Impact restrained maintained

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企业人力资源培训中的问题及对策

科技资讯 2022年第6期20卷 99-101页

作者：韩景瑞中铁十五局集团第四工程有限公司河南新郑451100

当前,我国社会已经进入到新常态的发展环境当中,行业环境日益复杂,市场竞争日益激烈,企业竞争更多表现的是人才的竞争。企业的人力资源管理工作受到了越来越多的关注,培训是企业人力资源管理活动中一项重要的内容,通过科学的人力资源培... 详细信息

当前,我国社会已经进入到新常态的发展环境当中,行业环境日益复杂,市场竞争日益激烈,企业竞争更多表现的是人才的竞争。企业的人力资源管理工作受到了越来越多的关注,培训是企业人力资源管理活动中一项重要的内容,通过科学的人力资源培训可以提高员工的工作技能,改善员工工作态度,从整体上促进工作效率的提升。为此,该文对目前企业人力资源培训中的短板和困境进行了梳理,并针对其中的核心问题提出了一些优化对策。

关键词：人力资源培训工作工作技能内容优化优化对策

iNet:visual analysis of irregular transition in multivariate dynamic networks

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Frontiers of Computer Science 2022年第2期16卷 124-139页

作者： Dongming han Jiacheng PAN Rusheng PAN Dawei ZHOU Nan CAO jingrui HE Mingliang XU Wei CHEN State Key Lab of CAD&CG Zhejiang UniversityHangzhou 310058China Department of Computer Science and Engineering Arizona State UniversityArizona 85287America Tong Ji Intelligent Big Data Visualisation Lab(iDVx Lab) TongJi UniversityShanghai 200082China Department of Computer Science and Technology Zhengzhou UniversityZhengzhou 450001China

Multivariate dynamic networks indicate networks whose topology structure and vertex attributes are evolving along time.They are common in multimedia applications.Anomaly detection is one of the essential tasks in analyzing these networks though it is not well addressed.In this paper,we combine a rare category detection method and visualization techniques to help users to identify and analyze anomalies in multivariate dynamic networks.We conclude features of rare categories and two types of anomalies of rare categories.Then we present a novel rare category detection method,called DIRAD,to detect rare category candidates with anomalies.We develop a prototype system called iNet,which integrates two major visualization components,including a glyph-based rare category identifier,which helps users to identify rare categories among detected substructures,a major view,which assists users to analyze and interpret the anomalies of rare categories in network topology and vertex attributes.Evaluations,including an algorithm performance evaluation,a case study,and a user study,are conducted to test the effectiveness of proposed methods.

关键词： multivariate dynamic networks rare categories anomaly detection visual analysis

Identification of Mulberry Endophytic Fungus Macrophomina phaseolina Strain

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Agricultural Biotechnology 2021年第6期10卷 93-95页

作者： Xue’e DOU Jingrui Han College of Forestry Shandong Agricultural UniversityTai’an 271018China Linqu County Animal Husbandry Development Center Linqu 262600China Agricultural Comprehensive Service Center Chengguan Sub-district OfficeLinqu CountyLinqu 262600China

An endophytic fungus MOD-1 was isolated from the roots of mulberry trees,and was identified as Macrophomina phaseolina by morphology and molecular biology.The 5.8 S rDNA/ITS region sequence of the strain has been regi... 详细信息

关键词： Macrophomina phaseolina Morphological identification Molecular biological identification