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Nano-Au-decorated hierarchical porous cobalt sulfide derived from ZIF-67 toward optimized oxygen evolution catalysis:Important roles of microstructures and electronic modulation

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Carbon Energy 2024年第5期6卷 1-14页

作者： Hongyu Gong Guanliang Sun Wenhua Shi Dongwei Li Xiangjun Zheng Huan Shi Xiu Liang Ruizhi Yang changzhou Yuan Department of New Energy Materials School of Environmental and Chemical EngineeringJiangsu University of Science and TechnologyZhenjiangJiangsuChina Advanced Materials institute Qilu University of Technology(Shandong Academy of Sciences)JinanShandongChina Shandong Saikesaisi Hydrogen Energy Co. Ltd.JinanShandongChina Department of Materials Science and engineering School of Materials Science&EngineeringUniversity of JinanJinanShandongChina Department of New Energy Science and engineering College of EnergySoochow Institute for Energy and Materials InnovationsSoochow UniversitySuzhouJiangsuChina

Enhancing both the number of active sites available and the intrinsic activity of Co-based electrocatalysts simultaneously is a desirable ***,a ZIF-67-derived hierarchical porous cobalt sulfide decorated by Au nanoparticles(NPs)(denoted as HP-Au@CoxSy@ZIF-67)hybrid is synthesized by low-temperature sulfuration *** well-defined macroporous-mesoporous-microporous structure is obtained based on the combination of polystyrene spheres,as-formed CoxSy nanosheets,and ZIF-67 *** novel three-dimensional hierarchical structure significantly enlarges the three-phase interfaces,accelerating the mass transfer and exposing the active centers for oxygen evolution *** electronic structure of Co is modulated by Au through charge transfer,and a series of experiments,together with theoretical analysis,is performed to ascertain the electronic modulation of Co by ***,HP-Au@CoxSy@ZIF-67 catalysts with different amounts of Au were synthesized,wherein Au and NaBH4 reductant result in an interesting“competition effect”to regulate the relative ratio of Co^(2+)/Co^(3+),and moderate Au assists the electrochemical performance to reach the highest ***,the optimized HP-Au@CoxSy@ZIF-67 exhibits a low overpotential of 340 mV at 10 mA cm^(-2)and a Tafel slope of 42 mV dec-1 for OER in 0.1 M aqueous KOH,enabling efficient water splitting and Zn-air battery *** work here highlights the pivotal roles of both microstructural and electronic modulation in enhancing electrocatalytic activity and presents a feasible strategy for designing and optimizing advanced electrocatalysts.

关键词： Au nanoparticles cobalt sulfide electronic modulation hierarchical porous structure oxygen evolution reaction

Green intelligent fertilizers——A novel approach for aligning sustainable agriculture with green development

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Frontiers of Agricultural Science and engineering 2024年第1期11卷 186-196页

作者： Maoying WANG Lingyun CHENG Chengdong HUANG Yang LYU Lin ZHANG Zhenya LU changzhou WEI Wenqi MA Zed RENGEL Jianbo SHEN Fusuo ZHANG State Key Laboratory of Nutrient Use and Management College of Resources and Environmental SciencesNational Academy of Agriculture Green DevelopmentKey Laboratory of Plant–Soil Interactions(Ministry of Education)China Agricultural UniversityBeijing 100193China college of Agronomy Shihezi UniversityShihezi 832000China college of Resources and Environmental Science Hebei Agricultural UniversityBaoding 071000China Soil Science and Plant Nutrition UWA School of Agriculture and EnvironmentThe University of Western AustraliaPerthWA 6009Australia institute for Adriatic Crops and Karst Reclamation Split 21000Croatia

This review addresses the growing disparity between the current state of fertilizer production in china and the evolving demands of green agriculture in the 21st century. It explores major advances in fertilizers, proposes the concept of green intelligent fertilizers and develops new strategies aligned with the principles of green development in fertilizer industry and *** intelligent fertilizers may be designed to maximize the synergistic effects among plants, soils, microorganisms, nutrient sources and the environment. This concept emphasizes the integration of industry and agriculture toward green development for entire industry chain, using an interdisciplinary approach to drive the green transformation of fertilizer industry, and promote green and sustainable development of agriculture. By bridging the gap between the current state of fertilizer industry and a growing need for environmentally responsible agricultural practices, this review highlights a path toward harmonizing fertilizer production with the imperatives of green agriculture.

关键词： Root-nutrient feedback green development intelligent fertilizers new fertilizer plant-soil-fertilizer interaction rhizosphere engineering

Permian tectonic evolution and continental accretion in the eastern Central Asian Orogenic Belt:A perspective from the intrusive rocks

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Geoscience Frontiers 2024年第2期15卷 433-451页

作者： Anzong Fu Hongyan Geng changzhou Deng Chenglu Li Jishuang Ding Bizheng Yang Wenpeng Yang Heilongjiang institute of Natural Resources Survey Harbin 150036China State Key Laboratory of Ore Deposit Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550002China Science Unit Lingnan UniversityHong KongChina college of Earth Sciences Jilin UniversityChangchun 130061China

The tectonic evolution and history of continental accretion of the eastern Central Asian Orogenic Belt(CAOB)are not yet fully *** this study,we investigate Permian intrusive rocks from the Jiamusi Block of the eastern CAOB to constrain the tectonic evolution and continental accretion of this region during the late-stage evolution of the Paleo-Asian *** new data show that Early Permian gabbro-diorites were derived from the partial melting of depleted mantle metasomatized by oceanic-slab-released *** Permian adakitic granites have low Na2O and MgO and high K2O contents,indicating a thickened-lower-crust *** Permian S-type granites were derived from the partial melting of continental crust.A compilation of the available geochronological data for Permian intrusive rocks(including adakitic and A-,S-,and I-type granites and mafic rocks)from the eastern CAOB reveals that the A-type granites formed mainly during the Early–Middle Permian,S-type and adakitic granites mostly during the Middle–Late Permian,and I-type granites and mantle-derived mafic rocks throughout the *** A-type granites,which are proposed to have been sourced from thinned continental crust,indicate an extensional setting in the eastern CAOB during the Early *** Middle–Late Permian adakitic granites imply a thickened continental crust,which indicates a compressional ***,the eastern CAOB underwent a transition from extension to compression during the Middle Permian,which was probably triggered by the late-stage subduction of Paleo-Asian oceanic *** the petrogenesis of the intrusive rocks and inferred regional tectonic evolution of the eastern CAOB,we propose that vertical underplating of mantle-and oceanic-slabderived magmas contributed the materials for continental crust accretion.

关键词： Permian Intrusive rocks Eastern Central Asian Orogenic Belt Paleo-Asian Ocean Tectonic evolution

Effect of the Sputtering Parameters on the Structure and Properties of Cu_3N Thin Film Materials

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Journal of Wuhan University of technology(Materials Science) 2010年第6期25卷 935-937页

作者：钱显毅黄致新 School of Electronic Information & Electric engineering Changzhou Institute of Technology college of Physical Science and technology Cental China Normal University

Copper nitride （Cu3N） thin films were successfully deposited on glass substrates by reactive radio frequency magnetron *** effects of sputtering parameters on the structure and properties of the films were *** experimental results show that with increasing of RF power and nitrogen partial pressure,the preferential crystalline orientation of Cu3N film is changed from （111） to （100）.With increasing of substrate temperature from 70 ℃ to 200 ℃,the film phase is changed from Cu3N phase to *** increasing sputtering power from 80 W to 120 W,the optical energy decreases from 1.85 eV to 1.41 eV while the electrical resistivity increases from 1.45 ×102 Ω·cm to 2.99×103 Ω·cm,respectively.

关键词： copper nitride sputtering parameters structure electrical and optical properties

基于全二维气相色谱-飞行时间质谱(GC×GC-TOFMS)法溯源溪流水体中有机污染物的来源研究

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环境科学学报 2024年第3期44卷 206-214页

作者：张国慧廖旭颜昌宙张娴中国科学院城市环境研究所厦门361021 福建农林大学生命科学学院福州350002

城市溪流水资源存在水体污染程度较高、污染来源复杂等问题,导致污染物溯源难,污染治理难度大.本研究以厦门某溪流为研究对象,利用全二维气相色谱-飞行时间质谱联用技术(GC×GC-TOFMS)对选定的5个样点进行了有机物的非靶向分析(其中,X1... 详细信息

城市溪流水资源存在水体污染程度较高、污染来源复杂等问题,导致污染物溯源难,污染治理难度大.本研究以厦门某溪流为研究对象,利用全二维气相色谱-飞行时间质谱联用技术(GC×GC-TOFMS)对选定的5个样点进行了有机物的非靶向分析(其中,X1~X4代表支流,X5代表主干流).通过结合受体模型、相似度算法和非负最小二乘法,对下游干流的有机污染物进行了溯源分析.结果显示:5个点位分别检出有机物88、110、123、64、103种,主要为烷烃类、醇类和其他氮氧化合物等有机污染物. 4个上游支流点位(X1~X4)与干流水体(X5)之间的相似度分别为0.46、0.48、0.41、0.32.非负最小二乘法计算出的各支流点位对干流水体污染贡献度分别为1%、43.3%、30.1%、23.2%,二者溯源结果都表明下游干流水体的污染主要来源于支流X2.全二维气相色谱-飞行时间质谱联用技术在鉴定水中未知有机污染物方面具有显著优势,结合数学模型,为有机污染物的溯源提供了有力的技术支撑.

关键词：全二维气相色谱-飞行时间质谱(GC×GC-TOFMS) 有机污染物水污染污染源解析

Comparison between photon annihilation-then-creation and photon creation-then-annihilation thermal states:Non-classical and non-Gaussian properties

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Chinese Physics B 2014年第7期23卷 251-256页

作者：徐学翔袁洪春王燕 college of Physics and Communication Electronics Jiangxi Normal University Key Laboratory of optoelectronic and Telecommunication of Jiangxi college of optoelectronic engineering changzhou institute of technology

We investigate the nonclassical properties of arbitrary number photon annihilation-then-creation operation （AC） and creation-then-annihilation operation （CA） to the thermal state （TS）, whose normalization factors are related to the polylog- arithm function. Then we compare their quantum characters, such as photon number distribution, average photon number, Mandel Q-parameter, purity and the Wigner function. Because of the noncommutativity between the annihilation operator and the creation operator, the ACTS and the CATS have different nonclassical properties. It is found that nonclassical properties are exhibited more strongly after AC than after CA. In addition we also examine their non-Gaussianity. The result shows that the ACTS can present a slightly bigger non-Gaussianity than the CATS.

关键词： annihilation-then-creation creation-then-annihilation Wigner function nonclassicality

Kinetic model of transesterification of diphenyl carbonate and 1,4-butyldiol

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Journal of Natural Gas Chemistry 2010年第4期19卷 436-440页

作者： Liping Wang1,2,3,4,Bin Xiao1,2,4,Gongying Wang1,2 1.Chengdu institute of Organic Chemistry,Chinese Academy of Science,Chengdu 610041,Sichuan,china 2.changzhou Key Laboratory of Green and technology,changzhou institute of Chemistry,changzhou 213164,Jiangsu,china 3.Department of Chemistry,Qujing Normal college,Qujing 655000,Yunnan,china 4.Graduate School of Chinese Academy of Science,Beijing 100039,china [a] Chengdu institute of Organic Chemistry Chinese Academy of Science Chengdu 610041 Sichuan China [b] Changzhou Key Laboratory of Green and Technology Changzhou Institute of Chemistry Changzhou 213164 Jiangsu China [c] Department of Chemistry Qujing Normal College Qujing 655000 Yunnan China [d] Graduate School of Chinese Academy of Science Beijing 100039 China

The transesterification of diphenyl carbonate （DPC） with 1,4-butyldiol （BD） was kinetically investigated in the presence of lithium acetate catalyst at 465 *** reaction was followed by the measurement of the quantity of phenol which was distilled from the *** experiments supported the assumption that the phenyl ester groups in DPC and phenyl hdroxybutyl carbonate （PHBH） had the same reactivity,and the transesterification obeyed first-order kinetics with respect to DPC and BD,and a rate equation was *** reaction rate was found to be first order with respect to the catalyst concentration as *** those data were incorporated in the rate equation,excellent agreement between calculated values and the observed ones was recognized over a wide range.

关键词： transesterification diphenyl carbonate 1,4-butyldiol lithium acetate kinetics

The Cu-Mo Mineralization of the Late Jurassic Porphyry in the Northern Great Xing'an Range: Constraints from Zircon U-Pb Ages of the Ore-Causative Granites

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Acta Geologica Sinica(English Edition) 2019年第1期93卷 236-237页

作者： DENG changzhou LI Guanghui college of Earth Sciences Jilin University Heilongjiang institute of Geological Survey

The Great Xing’an Range(GXAR)is one of the most important metallogenic belts in *** study has shown that porphyry Cu-Mo deposit distributed in the northern Great Xing’an Range formed mainly in two stages:(1)Early Ordovician,such as Duobaoshan and Tongshan deposits(Liu et al.,2017);2)Triassic-Early Jurassic,including Wunugetushan,Taipingchuan and Badaguan deposits(Tang et al.,2016).In recent years,two potential porphyry Cu-Mo deposits,Huoluotai and Xiaokele,were discovered in the Erguna Block,northern GXAR(Figs.1a–b).However,the ore formation ages and regional metallogenic regularity are ambiguous due to the lack of isotopic *** zircon U-Pb ages from the ore-causative granites were reported in this paper,with the aims to constrain the metallogenic ages and provide evidence for study of the regional metallogenic regularity and ore prospect prediction.

关键词： The Great Xing’an Range(GXAR) granites Cu-Mo

Cutting Performance and Mechanism of RE Carbide Tools

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Rare Metals 2001年第3期20卷 197-201页

作者： Jianbing Cheng, Yufang Wu, Qixun Yu 1) Department of Mechanical engineering, Beijing technology and Business University, Beijing 100037, china 2) college of Mechanical engineering and Automation, Beijing institute of technology Beijing 100081, china Beijing Technol & Business Univ Dept Mech Engn Beijing 100037 Peoples R China Beijing Inst Technol Coll Mech Engn & Automat Beijing 100081 Peoples R China

The research of rare earth elements (RE), added into cemented carbide tools, is one of the recent developments of new types of tool materials in china. Systematic experiments about RE carbides YG8R. (K30), YT14R (P20) and, YW1R (M10) were made to study on the cutting performance in comparison with non-RE carbides YG8, YT14 and YW1. The cutting experiments were as follows: tool life, cutting force, tool-chip friction coefficient and interrupted machining. The action of RE on the carbide materials and the cutting mechanism of the RE carbide tools in the cutting process were verified with the aid of SEM and energy spectrum analysis. Experimental results show that the RE carbide tools have a good overall performance.

关键词： rare earth elements cemented carbide tool cutting performance cutting mechanism