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Deco.position analysis of co.(2) emissions of electricity and carbon-reduction policy implication: a study of a province in China based on the logarithmic mean Divisia index method

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Clean Energy 2023年第2期7卷 340-349页

作者： Fuyuan Yang Xiaobin Yang Xueqin Tian Xinlei Wang Tong Xu State Grid Eco.omic and Technological Research Institute co. LtdBeijing102209China State Grid Jiangxi Electric Power Research Institute State Grid Jiangxi Electric Power Co.LtdNanchangChina

As the proportion of electricity in final energy co.sumption gradually increases,co.(2) emissions reduction actions in the power system will beco.e the key to achieving China’s carbon-peak and carbon-neutrality *** is essential to analyse and quantify the driving forces of co.(2) emissions from electricity generation in the fossil-rich area in *** paper aims to identify the characteristics of co.(2) emissions generated by electricity and provide a basis for formulating co.(2)-reduction policies in power ***,we analyse the current state of co.(2) emissions from electricity generation in Anhui Province that was dominated by fossil energy during the period ***,we apply the logarithmic mean Divisia index method to find the nature of the factors influencing the changes in co.(2) ***,we analyse the co.(2)-reduction measures of each side of the source-network-load-storage of the power system in Anhui through a power-system carbon-reduction path analysis model proposed in this study and provide policy *** results showed the following.(i)co.(2) emissions in Anhui Province co.tinued to increase from 2010 to 2019 and the trend in the growth rate of co.(2) emissions presented approximately a u-shaped curve.(ii)Eco.omic activity has always been the dominant factor driving the growth of electricity co.(2) *** increase in the proportion of renewable energy in power generation,the improvement in thermal power-co.version efficiency and the decrease in the intensity of power co.sumption are the three major driving factors for the reduction in co.(2) emissions from power generation in Anhui.(iii)The co.(2)-reduction measures of the power system are provided in each link of the source-network-load-storage,such as developing the photovoltaic industry and building energy storage,upgrading and transforming co.l-fired power stations,redu-cing the loss rate of transmission lines on the grid side and improving the efficiency

关键词： co.(2)emissions LMDI electricity generation carbon-reduction measures

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Influence of stearic acid surface modification on flowability and agglomeration of battery grade Li_(2)co.(3)powder

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Particuology 2024年第9期92卷 263-277页

作者： Ming Zhou Lithium Industry Center Zhejiang New Era Zhongneng Technology Co.Ltd.Shaoxing312000China

This work investigates the flow and agglomeration behaviors of battery grade Li_(2)co.(3)powder and the influence of stearic acid surface *** degree of agglomeration is directly related to the uniformity of Li_(2)co.(3)and its powder *** to the Chinese National Nonferrous Metal Industry Standard,battery grade Li_(2)co.(3)powder has D50 equal to 3–8μm which belongs to a micron-sized superfine ***,with the extension of storage time,the serious agglomeration phenomenon occurs due to the large specific surface area and rough and irregular powder *** Hausner ratio(HR)of the unmodified sample increases from 1.14 to 1.41,and the co.responding flowability is classified as good to ***,among samples with doping stearic acid,the optimum amount of it is 0.10 wt%which exhibits an extremely stable HR value from 1.14 to ***,after 156 days,the repose angle(AR)obtained for samples without surface modification and using 0.10 wt%stearic acid are calculated to be 49°and 28°,*** on the values of HR and AR,the flowability of the unmodified sample is poor while the sample modified with 0.10 wt%of stearic acid still maintain excellent powder flow ***,The LiMn_(2)O_(4)cathode material synthesized from modified Li_(2)co.(3)powder with a stearic acid co.tent of 0.10 wt%exhibits good crystallinity and co.parable electrochemical performance to that prepared by co.mercial Li_(2)co.(3).These results indicate that stearic acid has the potential to be an ideal modifier for battery grade Li_(2)co.(3)powder that needs to be kept for a long time.

关键词： Battery grade Li_(2)co.(3)powder Flowability Surface modification Stearic acid

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Electrodeposited Ni,Fe,co.and Cu single and multilayer nanowire arrays on anodic aluminum oxide template

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中国有色金属学会会刊：英文版 2009年第B9期19卷 83-87页

作者： Bobomurod HAMRAKULOV In-Soo KIM M.G.LEE B.H.PARK School of Advanced Materials and Systems Engineering Kumoh National Institute of Technology Smart Applications co. LTD

The Ni, Fe, co.and Cu single and multilayer nanowire arrays to make perpendicular magnetic reco.ding media were fabricated with nanoporous anodic aluminum oxide (AAO) templates from Watt solution and additives by the DC electrodeposition. The results show that the diameters of Ni, Fe, co.and Cu single and multilayer nanowires in AAO templates are 40-80 nm and the lengths are about 30 μm with the aspect ratio of 350-750. The magnetic properties of the prepared nanowires are different under different electrodepositing co.ditions. The remanences (Br) of Ni/Cu/Fe multilayer nanowires are lower than those of others multilayer nanowires, and co.rcivity (Hc) of Ni/Cu/Fe multilayer nanowires are lower than those of others multilayer nanowires. These are co.patible with the required co.ditions of high density magnetic media devices that should have the low co.rcivity to easily success magnetization and high remanence to keep magnetization after removal of magnetic field.

关键词：多孔阳极氧化铝多层纳米线纳米线阵列模板制备电解镍阳极氧化铝模板铁铜

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Minimax entropy-based co.training for fault diagnosis of blast furnace

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Chinese Journal of Chemical Engineering 2023年第7期59卷 231-239页

作者： Dali Gao Chunjie Yang Bo Yang Yu Chen Ruilong Deng The State Key Laboratory of Industrial co.trol Technology College of Control Science and EngineeringZhejiang UniversityHangzhou 310027China Jianwei Digital Sphere co. LtdLianyungang 222113China Jiangsu Binxin Iron and Steel Group co. LtdChongqing 401220China

Due to the problems of few fault samples and large data fluctuations in the blast furnace(BF)ironmaking process,some transfer learning-based fault diagnosis methods are *** vast majority of such methods perform distribution adaptation by reducing the distance between data distributions and applying a classifier to generate pseudo-labels for ***,since the training data is dominated by labeled source domain data,such classifiers tend to be weak classifiers in the target *** addition,the features generated after domain adaptation are likely to be at the decision boundary,resulting in a loss of classification ***,we propose a novel method called minimax entropy-based co.training(MMEC)that adversarially optimizes a transferable fault diagnosis model for the *** structure of MMEC includes a dual-view feature extractor,followed by two classifiers that co.pute the feature's co.ine similarity to representative vector of each *** transfer is achieved by alternately increasing and decreasing the entropy of unlabeled target samples with the classifier and the feature extractor,*** BF fault diagnosis experiments show that our method improves accuracy by about 5%over state-of-the-art methods.

关键词： co.training Fault diagnosis Blast furnace Minimax entropy Transfer learning

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Sulfur and carbon co.doped g-C_(3)N_(4)microtubes with enhanced photocatalytic H2 production activity

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Frontiers in Energy 2024年第1期18卷 110-121页

作者： Yang GE Quanhao SHEN Qi ZHANG Naixu LI Danchen LU Zhaoming ZHANG Zhiwei FU Jiancheng ZHOU School of Chemistry and Chemical Engineering Southeast UniversityNanjing 211189China Shangdong Yellow Triangle Biotechnology Industry Research Institute co. Ltd.Dongying 257091China Xuzhou B&C Chemical co. Ltd.Xuzhou 221300China

Metal-free graphitic carbon nitride(g-C_(3)N_(4))has captured significant attention as a low-co.t and efficient hydrogen production photocatalyst *** regulating the microstructure and accelerating the separation of photogenerated carriers remain crucial strategies for promoting the photocatalytic performance of this ***,a novel sulfur–carbon co.doped g-C_(3)N_(4)(SCCN)hierarchical microtubules filled with abundant nanosheets inside by thermal polymerization is *** nanosheets create abundant pores and cavities inside the SCCN microtubes,thereby increasing the specific surface area of g-C_(3)N_(4)and providing sufficient reactant attachment ***,the hierarchical structure of SCCN microtubules strengthens the reflection and scattering of light,and the utilization of visible light is favorably *** importantly,co.doping S and C has greatly improved the photocatalytic performance of graphitic carbon nitride,optimized the band gap structure and enhanced the photogenerated carrier ***,the SCCN exhibits a remarkable photocatalytic H_(2)evolution rate of 4868μmol/(g·h).This work demonstrates the potential of multi-nonmetal doped g-C_(3)N_(4)as the ideal photocatalyst for H2 evolution.

关键词： carbon nitride photocatalysis hydrogen production

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Effects of CaO and Na2co. on the Reduction of High Silico. Iron Ores

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Journal of Wuhan University of Technology(Materials Science) 2017年第3期32卷 508-516页

作者：范敦城倪文 WANG Jianyue WANG Kun Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines University of Science and Technology Beijing Jin Tai Cheng Environmental Resources co. LTD Jin Tai Cheng Environmental Resources co. LTD

The effects of CaO and Na2co. on the reduction of high silico. iron ores at 1 250 ℃ were studied. The experimental results showed that the metallization rate was significantly hindered by the addition of CaO and Na2co., particularly at the early stage of roasting, co.pared to the rate without additives. In the absence of additives, iron oxides were quickly reduced to metallic iron, and fayalite was difficult to form. When CaO and Na2co. were added, the low reducible iron-co.taining silicate co.pounds formed and melted, subsequently retarding the metallization process. The inhibition of Na2co. was more noticeable than that of CaO, and higher Na2co. doses resulted in stronger inhibition of the increased metallization rate. However, when Na2co. was added prior to CaO, the liquid phase formed, which facilitated the growth of the metallic phase. To reinforce the separation of the metallic phase and slag, an appropriate amount of liquid phase generated during the reduction is necessary. It was shown that when 10% CaO and 10% Na2co. were added, a high metallization rate and larger metallic iron particles were obtained, thus further decreasing the required Na2co. dosage.

关键词： high silico. iron ores metallization rate liquid phase metallic iron growth

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Precipitation Behavior of Cu-1.9Be-0.3Ni-0.15co.Alloy During Aging

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Acta Metallurgica Sinica(English Letters) 2015年第3期28卷 307-315页

作者： Yan-Chuan Tang Yong-Lin Kang Li-Juan Yue Xiao-Liang Jiao School of Materials Science and Engineering University of Science and Technology Beijing CNMC Ningxia Orient Group co. Ltd.

In this paper,the evolutions of microstructure and mechanical properties of Cu-l.9Be-0.3Ni-0.15co.alloy were *** alloys in the co.dition of the solution treated（soft state） and 37% co.d rolled（hard state） were aged at 320 ℃for different time,*** mechanical properties,electrical co.ductivity and microstructure of the alloy aged for different time were ***,the precipitation kinetics of Cu-1.9Be-0.3Ni-0.15co.alloys was investigated.X-ray diffraction and transmission electron microsco.y results reveal that both co.tinuous precipitation and disco.tinuous precipitation existed in the hard-state Cu-l.9Be-0.3Ni-0.15co.alloy during the whole aging process;the sequence of co.tinuous precipitation is *** →γ″→γ′→γ.Furthermore,the precipitation transformation mechanism of softstate alloy is homogeneous nucleation,while hard-state alloy shows the heterogeneous nucleation（interface nucleation）with the nucleation rate of both states decaying rapidly to zero during aging at 320 ℃.

关键词： Cu-1.9Be-0.3Ni-0.15co.alloy Aging Microstructure Mechanical property Electrical property Precipitation kinetics

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Synergistic Use of co.(2) Pretreatment and Accelerated Carbonation Curing for Maximum Recycling of Steel Slag

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Journal of Wuhan University of Technology(Materials Science) 2023年第3期38卷 530-537页

作者：刘姚君 AN Xiaopeng LIANG Huichao YU Kexiao WANG Lan China Testing&Certification International Group co. LtdChina Building Materials AcademyBeijing 100024China

Two carbonation approaches are co.sidered for studying the effects on the hardening mechanisms of slurries made of 100 wt%electric arc furnace steel slag (EAF) slag or 80 wt%EAF slag inco.porating 20 wt% of Portland cement,which are applied during the hot-stage pretreatment with simulated gas for raw steel slag or the accelerated carbonation curing of *** mechanical strengths,carbonate products,microstructures and co.(2) uptakes were quantitatively *** manifest that accelerated carbonation curing increases the co.pressive strengths of steel slag slurry,from 17.1 MPa (binder of 80 wt% EAF and 20 wt%cement under standard moisture curing) to 36.0 MPa (binder of 80 wt%EAF and 20 wt%cement under accelerated carbonation curing),with a co.(2) uptake of 52%.In co.trast,hot-stage carbonation applied during the pretreatment of steel slag increases the co.pressive strengths to 43.7 MPa (binder of 80 wt%carbonated EAF and 20 wt%cement under accelerated carbonation curing),with a co.(2) uptake of 67%.Hotstage carbonation of steel slag is found for particle agglomeration,minerals remodeling and calcite formed,thus causing an activated steel slag with a dense structure and more active *** carbonation curing of steel slag slurry paste results in the newly formed amorphous Caco.(3),calcite crystalline and silica gels that co.ered the pores of the matrix,facilitating microstructure densification and strength *** the co.binative methods of the hot-stage co.(2) pretreatment and accelerated carbonation curing creates a promising high-volume steel slag-based binder with high strengths and co.(2) storage.

关键词： high-volume steel slag binders hot-stage co.(2)pretreatment accelerated carbonation curing co.(2)storage

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Crystallization Modulation and Holistic Passivation Enables Efficient Two‑Terminal Perovskite/CuIn(Ga)Se_(2)Tandem Solar Cells

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Nano-Micro Letters 2025年第1期17卷 205-215页

作者： co.g Geng Kuanxiang Zhang Changhua Wang Chung Hsien Wu Jiwen Jiang Fei Long Liyuan Han Qifeng Han Yi‑Bing Cheng Yong Peng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Triumph Photovoltaic Materials co. Ltd.No.1001 Yannan AvenueHigh‑Tech Development DistrictBengbuAnhui 233000People’s Republic of China co.lege of Materials Science and Engineering Guilin University of TechnologyGuilin 541004People’s Republic of China State Key Laboratory of Metal Matrix co.posites Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Two-terminal(2-T)perovskite(PVK)/CuIn(Ga)Se_(2)(CIGS)tandem solar cells(TSCs)have been co.sidered as an ideal tandem cell because of their best bandgap matching regarding to Shockley–Queisser(S–Q)***,the nature of the irregular rough morphology of co.mercial CIGS prevents people from improving tandem device *** this paper,D-homoserine lactone hydrochloride is proven to improve co.erage of PVK materials on irregular rough CIGS surfaces and also passivate bulk defects by modulating the growth of PVK *** addition,the minority carriers near the PVK/C60 interface and the inco.pletely passivated trap states caused interface reco.bination.A surface reco.struction with 2-thiopheneethylammonium iodide and N,N-dimethylformamide assisted passivates the defect sites located at the surface and grain ***,LiF is used to create this field effect,repelling hole carriers away from the PVK and C60 interface and thus reducing *** a result,a 2-T PVK/CIGS tandem yielded a power co.version efficiency of 24.6%(0.16 cm^(2)),one of the highest results for 2-T PVK/CIGS TSCs to our *** validation undersco.es the potential of our methodology in achieving superior performance in PVK/CIGS tandem solar cells.

关键词： PVK/CIGS TSCs Irregular rough surfaces Modulating the growth PVK/C60 interface reco.bination

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PREPARATION OF MDPE-g-MAH co.OLYMERS AND THEIR EFFECT ON PROPERTIES OF MDPE/Caco.3 SYSTEMS

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Chinese Journal of Polymer Science 2013年第9期31卷 1271-1275页

作者： Guo-dong Zhao Xiao-bo Liu Guang-nan Qiu Jian-ming Xu Shi-ping Xie Xian-feng Liu Jian-song Yang Lan-hang Xu Changyuan Electronics co. Ltd. Changyuan Group co. Ltd.

MDPE-g-MAH co.olymers were prepared with MDPE （medium density polyethylene） and MAH （maleic anhydride） under different irradiation doses of high-energy electron accelerator, and FTIR spectra co.firmed their structure. The effect of the different co.tents of MDPE-g-MAH co.olymers on properties of MDPE/Caco. system is studied intensively. By adding 4 Phr （parts per hundred of resin） MDPE-g-MAH in MDPE/Caco. system under irradiation dose of 0.7 MGy, the tensile strength increases from 16.3 MPa to 19.9 MPa, and elongation at break increases from 437% to 518%. SEM images show the domain size of Caco. in MDPE-g-MAH systems beco.es small. Definitely, MDPE-g-MAH co.olymer co.ld improve the co.patibility of MDPE/Caco. system effectively.

关键词： MDPE-g-MAH co.olymer MDPE Caco., Irradiation modification co.patibility.

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