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Strong metal–support interaction boosts the electrocatalytic hydrogen evolution capability of Ru nanoparticles supported on titanium nitride

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Carbon Energy 2024年第1期6卷 245-254页

作者： Xin Wang Xiaoli yang Guangxian Pei jifa yang Junzhe Liu Fengwang Zhao Fayi Jin Wei Jiang Haoxi Ben Lixue Zhang College of Chemistry and Chemical Engineering Collaborative Innovation Center for Hydrogen Energy Key Materials and Technologies of Shandong ProvinceQingdao UniversityQingdaoShandongChina State Key Laboratory of Bio-fibers and Eco-Textiles Qingdao UniversityQingdaoShandongChina Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of ScienceQingdaoShandongChina

Ruthenium(Ru)has been regarded as one of the most promising alternatives to substitute Pt for catalyzing alkaline hydrogen evolution reaction(HER),owing to its inherent high activity and being the cheapest platinum-group ***,based on the idea of strong metal–support interaction(SMSI)regulation,Ru/TiN catalysts with different degrees of TiN overlayer over Ru nanoparticles were fabricated,which were applied to the alkaline electrolytic *** reveal that the TiN overlayer would gradually encapsulate the Ru nanoparticles and induce more electron transfer from Ru nanoparticles to TiN support by the Ru–N–Ti bond as the SMSI degree *** study shows that the exposed Ru–TiN interfaces greatly promote the H_(2) desorption ***,the Ru/TiN-300 with a moderate SMSI degree exhibits excellent HER performance,with an overpotential of 38 mV at 10 mA cm^(−2).Also,due to the encapsulation role of TiN overlayer on Ru nanoparticles,it displays super long-term stability with a very slight potential change after 24 *** study provides a deep insight into the influence of the SMSI effect between Ru and TiN on HER and offers a novel approach for preparing efficient and stable HER electrocatalysts through SMSI engineering.

关键词： electronic structure hydrogen evolution reaction ruthenium strong metal-support interaction titanium nitride

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Rational Design of Electrocatalyst with Abundant Co/MoN Heterogeneous Domains for Accelerating Hydrogen Evolution Reaction

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Chinese Journal of Structural Chemistry 2022年第7期41卷 40-45页

作者： Yu Qiu Jinzheng Liu Mengxiao Sun jifa yang Junzhe Liu Xiaoyan Zhang Xuejun Liu Lixue Zhang College of Chemistry and Chemical Engineering Qingdao UniversityQingdao 266071China

Developing efficient and durable electrocatalysts for water splitting, which has long been regarded as one of the most promising patterns to produce green hydrogen, is of great significance but still challenging. Herein,ample Co/MoN heterogeneous domains/nitrogen-doped carbon(Co/MoN/NC) nanosheet arrays as high-performance hydrogen evolution reaction(HER) electrocatalyst via a typical nitriding-carbonization strategy are successfully prepared on nickel foam(NF), which exhibits a low overpotential of 29 m V at 10 m A cm, together with excellent durability at 20 m A cmfor 90 h in alkaline solution. Such excellent catalytic property for HER can be attributed to the generation of abundant Co/Mo N heterogeneous structures. Additionally, the high conductivity of Co/Mo N and NC also increases the charge transfer rate, further helping accelerate the reaction rate of HER. This work presents an efficient method for improving the catalytic hydrogen evolution activity in basic solution.

关键词： hydrogen evolution reaction water electrolysis Co/MoN heterogeneous domains

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Intelligent secure near-field communication

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Science China(Information Sciences) 2024年第9期67卷 340-341页

作者： Nan ZHANG jifa ZHANG Chengwen XING Na DENG Nan ZHAO School of Information and Communication Engineering Dalian University of Technology School of Information and Electronics Beijing Institute of Technology

The research and development efforts for the sixth generation(6G) wireless communication are underway to fulfill the growing demands for wireless communications. 6G is expected to become the key enabler for diverse new applications and services [1]. To achieve the excellent performance, 6G will implement extremely large-scale antenna arrays(ELAAs), terahertz [2], and new types of antennas with metamaterials, leading to a paradigm shift for the electromagnetic characteristics.

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Research progress of CO_(2) capture and mineralization based on natural minerals

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International Journal of Minerals,Metallurgy and Materials 2024年第6期31卷 1208-1227页

作者： Chenguang Qian Chunquan Li Peng Huang Jialin Liang Xin Zhang jifa Wang Jianbing Wang Zhiming Sun School of Chemical and Environmental Engineering China University of Mining and Technology(Beijing)Beijing 100083China Shanghai Construction Building Material Technology Group Shanghai 200080China

Natural minerals,such as kaolinite,halloysite,montmorillonite,attapulgite,bentonite,sepiolite,forsterite,and wollastonite,have considerable potential for use in CO_(2) capture and mineralization due to their abundant reserves,low cost,excellent mechanical prop-erties,and chemical *** the past decades,various methods,such as those involving heat,acid,alkali,organic amine,amino sil-ane,and ionic liquid,have been employed to enhance the CO_(2) capture performance of natural minerals to attain high specific surface area,a large number of pore structures,and rich active *** research on CO_(2) capture by natural minerals will focus on the full utiliza-tion of the properties of natural minerals,adoption of suitable modification methods,and preparation of composite materials with high specific surface area and rich active *** addition,we provide a summary of the principle and technical route of direct and indirect mineralization of CO_(2) by natural *** process uses minerals with high calcium and magnesium contents,such as forsterite(Mg_(2)SiO_(4)),serpentine[Mg_(3)Si_(2)O(OH)_(4)],and wollastonite(CaSiO_(3)).The research status of indirect mineralization of CO_(2) using hydro-chloric acid,acetic acid,molten salt,and ammonium salt as media is also introduced in *** recovery of additives and high-value-added products during the mineralization process to increase economic benefits is another focus of future research on CO_(2) mineralization by natural minerals.

关键词： natural mineral carbon dioxide capture modification composite material carbon dioxide mineralization

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Creating large EMS populations for functional genomics and breeding in wheat

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Journal of Integrative Agriculture 2024年第2期23卷 484-493页

作者： Wenqiang Wang Xizhen Guan Yong Gan Guojun Liu Chunhao Zou Weikang Wang jifa Zhang Huifei Zhang Qunqun Hao Fei Ni Jiajie Wu Lynn Epstein Daolin Fu Spring Valley Agriscience Co. Ltd.Jinan 250300China College of Life Sciences Zaozhuang UniversityZaozhuang 277160China National Key Laboratory of Wheat Improvement College of AgronomyShandong Agricultural UniversityTai’an 271018China Department of Plant Pathology University of CaliforniaDavisCA 95616USA

Wheat germplasm is a fundamental resource for basic research,applied studies,and wheat breeding,which can be enriched normally by several paths,such as collecting natural lines,accumulating breeding lines,and introducing mutagenesis *** methane sulfonate(EMS)is an alkylating agent that can effectively introduce genetic variations in a wide variety of plant *** this study,we created a million-scale EMS population(MEP)that started with the Chinese wheat cultivars‘Luyan 128’,‘Jimai 38’,‘Jimai 44’,and‘Shannong 30’.In the M1 generation,the MEP had numerous phenotypical variations,such as>3,000 chlorophyll-deficient mutants,2,519 compact spikes,and 1,692 male sterile *** were also rare mutations,including 30 independent tillers each with double *** M1 variations of chlorophyll-deficiency and compact spikes were inheritable,appearing in the M2 or M3 *** advance the entire MEP to higher generations,we adopted a single-seed descendent(SSD)*** other seed composites of M2 were used to screen other agronomically important traits,such as the tolerance to herbicide *** MEP is available for collaborative projects,and provides a valuable toolbox for wheat genetics and breeding for sustainable agriculture.

关键词： wheat germplasm ethyl methane sulfonate genetics and breeding

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M701F4型燃气—蒸汽联合循环热态启动升负荷率优化研究与应用

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东方汽轮机 2023年第4期 76-79页

作者：杨基发广东粤电大亚湾综合能源有限公司广东惠州516000

M701F4型燃气-蒸汽联合循环分轴机组热态启动时间相对偏长,受国际天然气市场及电力市场改革等多种因素影响[1],两班制运行机组较连续运行机组经济性相对较差[2]。文章主要概述了通过优化燃气-蒸汽联合循环热态启动升负荷速率,缩短了M70... 详细信息

M701F4型燃气-蒸汽联合循环分轴机组热态启动时间相对偏长,受国际天然气市场及电力市场改革等多种因素影响[1],两班制运行机组较连续运行机组经济性相对较差[2]。文章主要概述了通过优化燃气-蒸汽联合循环热态启动升负荷速率,缩短了M701F4燃气轮机机组热态启动时间,提高了两班制运行联合循环机组的经济性,优化后每年可节省启动成本约268.3万元。

关键词：联合循环汽轮机启动成本节能

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M701F4型联合循环机组天然气调压站低品位热能回收及效益分析

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工业锅炉 2023年第4期 40-43页

作者：杨基发广东粤电大亚湾综合能源有限公司广东惠州516000

受国际天然气市场及电力市场改革等多种因素影响,燃机发电厂经济效益每况愈下,发电机组节能运行成为燃机发电厂重点关注的问题。通过理论分析及试验实测的方法,验证了采用锅炉排污废水替代低压省煤器出口热水作为天然气调压站天然气加... 详细信息

受国际天然气市场及电力市场改革等多种因素影响,燃机发电厂经济效益每况愈下,发电机组节能运行成为燃机发电厂重点关注的问题。通过理论分析及试验实测的方法,验证了采用锅炉排污废水替代低压省煤器出口热水作为天然气调压站天然气加热装置热源的可行性,提高了发电厂发电效率,每年可节约成本约63.2万元。天然气调压站热源改造,实现了低品位热能回收,可为同类型燃机发电厂运行优化提供参考。

关键词：天然气节能优化低品位热能

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论沈从文对列夫·托尔斯泰的接受与转化——以阅读史为考察路径

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中国比较文学 2024年第1期134卷 87-101页

作者：向吉发湖南大学中国语言文学学院

以翻译作品为接受路径,沈从文的早期文学观受到了《艺术论》的影响,沈从文的小说结构从托尔斯泰的城乡叙事模式中获得了情感、价值上的支持,沈从文将托尔斯泰的形象目标化、模范化,视为理想作家的范型,用以关切一般写作者,又将托尔斯泰... 详细信息

以翻译作品为接受路径,沈从文的早期文学观受到了《艺术论》的影响,沈从文的小说结构从托尔斯泰的城乡叙事模式中获得了情感、价值上的支持,沈从文将托尔斯泰的形象目标化、模范化,视为理想作家的范型,用以关切一般写作者,又将托尔斯泰的形象化用为应对外界批评/压力和坚持自我道路的精神武器,同时也“见贤思齐”,用托尔斯泰的形象砥砺自己。托尔斯泰被沈从文赞为“最可爱的”“人道主义的”“伟大文学家”,在沈从文接受对象中具有唯一性,与沈从文的情感、精神需求相呼应。理解沈从文对托尔斯泰的接受与转化,能窥见沈从文小说、思想、精神世界中晦暗不明而又真实存在的图景。

关键词：沈从文《艺术论》列夫·托尔斯泰城乡叙事模式

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Highly efficient solution-processed organic photovoltaics enabled by improving packing behavior of organic semiconductors

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Science China Chemistry 2024年第3期67卷 890-897页

作者： Xinyue Cui Hongxiang Li Hao Lu Yuqiang Liu Guangliu Ran Rui Liu Huarui Zhang Xueqing Ma Dawei Li Yi Lin jifa Yu Wenkai Zhang Lei Cai Yahui Liu Pei Cheng Andong Zhang Zaifei Ma Guanghao Lu Zhishan Bo College of Textiles and Clothing State Key Laboratory of Bio-fibers and Eco-textilesQingdao UniversityQingdao 266071China State Key Laboratory of Polymer Materials Engineering College of Polymer Science and EngineeringSichuan UniversityChengdu 610065China Department of Physics and Applied Optics Beijing Area Major Laboratory Center for Advanced Quantum StudiesBeijing Normal UniversityBeijing 100875China Shandong Province Key Laboratory of Medical Physics and Image Processing Technology School of Physics and ElectronicsShandong Normal UniversityJinan 250014China Beijing Key Laboratory of Energy Conversion and Storage Materials College of ChemistryBeijing Normal UniversityBeijing 100875China Center for Advanced Low-Dimension Materials State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620China Frontier Institute of Science and Technology Xi'an Jiaotong UniversityXi'an 710054China

Solution processability is a unique property of organic semiconductors. The compact and regular π-π stacking between molecules is paramount in the performance of organic optoelectronic devices. However, it is still a challenge to improve their stacking quality without sacrificing the solution-processability from the aspect of materials design. Here, delicately engineered additives are presented to promote the formation of ordered aggregation of conjugated molecules by regulating their nucleation and growth dynamics. Intriguingly, the long-chain BTP-eC9-4F molecules can realize ordered aggregation comparable to short-chain ones without sacrificing processability. The domain size of BTP-eC9-4F aggregation is enlarged from 24.2 to 32.2 nm in blend *** exciton diffusion and charge transport become faster, contributing to the suppression of recombination losses. As a result, a power conversion efficiency of 19.2% is achieved in D18:BTP-eC9-4F based organic photovoltaics. Our findings demonstrate a facile strategy to improve the packing quality of solution-processed organic semiconductors for high-efficiency photovoltaics and beyond photovoltaics.

关键词： organic semiconductor organic photovoltaic charge transport solution processability

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转动极板电除尘器应用分析

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热力发电 2010年第11期39卷 85-87页

作者：杨继发王绪棠李彬彬房文瑞包晋榆北京博电兴源节能科技有限公司北京100081

转动极板电除尘器是一种采用可转动的转动极板及旋转刷清灰方式的新型电除尘器。介绍了该电除尘器转动极板电场的技术特性,包括可消除二次扬尘,避免反电晕现象,提高除尘效率,构建超大型电除尘器等。与常用的除尘设备(电除尘器、布袋除... 详细信息

转动极板电除尘器是一种采用可转动的转动极板及旋转刷清灰方式的新型电除尘器。介绍了该电除尘器转动极板电场的技术特性,包括可消除二次扬尘,避免反电晕现象,提高除尘效率,构建超大型电除尘器等。与常用的除尘设备(电除尘器、布袋除尘器、电袋复合式除尘器)相比,转动极板电除尘器在工况适应性、煤种适应性、安全性、电耗以及运行费用等方面具有明显优势。

关键词：除尘器转动极板技术除尘效率耗电量清灰反电晕

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