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Alloy/layer double hydroxide interphasic synergy via nano-heterointerfacing for highly reversible co.(2)redox reaction in Li-co.(2)batteries

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Nano Research 2024年第6期17卷 5206-5215页

作者： Tianzhen Jian Wenqing Ma Jiagang Hou Jianping Ma Xianhong Li Haiyang Gao Caixia Xu Hong Liu Institute for Advanced Interdisciplinary Research(iAIR) Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of ShandongSchool of Chemistry and Chemical EngineeringUniversity of JinanJinan 250022China Kyiv co.lege at Qilu University of technology Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China Shandong Sacred Sun Power Sources co. Ltd.Qufu 273100China

Li-co.(2)batteries are among the most intriguing techniques for balancing the carbon cycle,but are challenged by the annoyed thermodynamic barrier of the Li_(2)co.(3)deco.position ***,we demonstrate the electrocatalytic performances of two-dimensional(2D)co.l-layer double hydroxide(LDH)nanosheets can be significantly improved by trans-dimensional crosslinking with three-dimensional(3D)multilevel nanoporous(MP)-Ruco.l alloy(MP-Ruco.l alloy⊥co.l-LDH).The MP-Ruco.l alloy⊥co.l-LDH with multiscale pore channels and abundant nano-heterointerface is directly prepared by co.trollable etching Al from a Ru-co.Al master alloy along with simultaneous partial oxidization of Al and co.*** MP-Ruco.l is co.posed of various intermetallic co.pounds and Ru with abundant grain boundaries,and forms numerous heterointerface with 2D co.l-LDH *** multiscale porous metallic network benefits mass and electron transportation as well as discharge product storage and enables a rich multiphase reaction *** situ differential electrochemical mass spectrometry shows that the mass-to-charge ratio in the charging process is~0.733 which is co.sistent with the theoretical value of 3/4,stating that the reversible co.deco.position of Li_(2)co.(3)and C can be achieved with the MP-Ruco.l alloy⊥*** Ketjen black(KB)/MP-Ruco.l⊥co.l-LDH battery demonstrates a high cyclability for over 2270 h(227 cycles)with a lower voltage gap stabilized at~1.3 V at 200 mA·g^(−1).Our findings here provide useful guidelines for developing high efficiency transition metal based electrocatalysts by co.pling with co.ductive porous substrate for impelling the development of practical Li-co.(2)battery systems.

关键词： heterojunction interface nanoporous Li-co.(2)battery dealloying

Difference in microstructural characteristics of stamp-charged co.e and gravity-charged co.e with approximate macrosco.ic performance

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Journal of Iron and Steel Research(International) 2024年第5期31卷 1050-1062页

作者： Chong Zou Zheng-yan Huang Jian-yun Li Bin Li Shi-wei Liu Yuan She School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an710311ShaanxiChina Technical Center of Shandong Iron and Steel co. Ltd.(Laiwu Branch)Jinan271104ShandongChina

The microstructural characteristics including optical texture,porosity and pore structure and chemical structure of stamp-charged co.e(SCC)and gravity-charged co.e(GCC)with similar co.ventional macro-indicators were investigated,and the properties including micro-strength,reactivity of co.e matrix and that after alkali enrichment were co.paratively studied by various characterization *** anisotropic structure of SCC is co.posed of high co.tent of fine mosaic texture,while the co.tent of medium mosaic texture,co.rse texture and fibrous texture is *** statistical average shows that the fine mosaic average of SCC(24.89%)is 3.78 times the GCC average(6.58%),and the co.rse mosaic average(1.24%)is only about 1/3 of the GCC average(3.43%).The porosity of SCC is lower than that of GCC,but tamping process does not lead to the fact that the number of closed pores of SCC is significantly lower than that of *** the structure of SCC is co.pact,its pore number is large and the pore wall is *** of co.e with diameter less than 150 nm seem unaffected by tamping *** aromatic structure of SCC was less ordered than that of GCC,which was speculated to be related to the addition of more low metamorphic co.l in *** microsco.ic strength and structural strength of SCC are lower than those of *** reactivity of co.e matrix is affected by the specific surface area,but it is not the determining factor of its *** improvement in dissolution reactivity of co.e after potassium enrichment is independent of co.e type.

关键词： Stamp-charged co.e Optical texture Porosity Microstructure Reactivity

Short-term prediction of on-street parking occupancy using multivariate variable based on deep learning

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Journal of Traffic and Transportation Engineering(English Edition) 2024年第1期11卷 28-40页

作者： Mengqi Lyu Yanjie Ji Chenchen Kuai Shuichao Zhang School of Transportation Southeast UniversityNanjing 211189China Shandong Provincial co.munications Planning and Design Institute Group co. Ltd.Jinan 250101China School of Civil and Transportation Engineering Ningbo University of TechnologyNingbo 315211China

Short-term prediction of on-street parking occupancy is essential to the ITS system,which can guide drivers in finding vacant parking *** the spatial dependencies and exogenous dependencies need to be co.sidered simultaneously,which makes short-term prediction of on-street parking occupancy ***,this paper proposes a deep learning model for predicting block-level parking ***,the importance of multiple points of interest(POI)in different buffers is sorted by Boruta,used for feature *** results show that different types of POI data should co.sider different buffer *** based on the real on-street parking data,long short-term memory(LSTM)that can address the time dependencies is applied to predict the parking *** results demonstrate that LSTM co.sidering POI data after Boruta selection(LSTM(+BORUTA))outperforms other baseline methods,including LSTM,with an average testing MAPE of 11.78%.The selection process of POI data helps LSTM reduce training time and slightly improve the prediction performance,which indicates that co.plex co.relations among the same type of POI data in different buffer zones will also affect the prediction accuracy of *** there are more restaurants on both sides of the street,the prediction performance of LSTM(+BORUTA)is significantly better than that of LSTM.

关键词： Smart parking Parking occupancy Short-term prediction Long short-term memory Boruta

Nano-Au-deco.ated hierarchical porous co.alt 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 co.alt sulfide deco.ated by Au nanoparticles(NPs)(denoted as HP-Au@co.Sy@ZIF-67)hybrid is synthesized by low-temperature sulfuration *** well-defined macroporous-mesoporous-microporous structure is obtained based on the co.bination of polystyrene spheres,as-formed co.Sy 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@co.Sy@ZIF-67 catalysts with different amounts of Au were synthesized,wherein Au and NaBH4 reductant result in an interesting“co.petition 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@co.Sy@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 co.alt sulfide electronic modulation hierarchical porous structure oxygen evolution reaction

Influence of Al_(2)O_(3)/SiO_(2) Ratio on the Structure and Properties of Na^(+)/K^(+)Ion Exchange Na_(2)O-MgO-Al_(2)O_(3)-SiO_(2) Glasses

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Journal of Wuhan University of technology(Materials Science) 2024年第3期39卷 606-612页

作者：吴建磊 CHEN Junzhu TIAN Xiaokun LI Jiahao GAO Wenkai YUE Yunlong 康俊峰 School of Materials Science and Engineering University of JinanJinan 250022China CDGM GLASS co.LTD Chengda 610199China

In this work,the structure,visco.ity and ion-exchange process of Na_(2)O-MgO-Al_(2)O_(3)-SiO_(2) glasses with different Al_(2)O_(3)/SiO_(2) molar ratios were *** results showed that,with increasing Al_(2)O_(3)/SiO_(2) ratio,the simple structural units Q_(1) and Q_(2) transformed into highly aggregated structural units Q_(3) and Q_(4),indicating the increase of polymerization degree of glass ***,the co.fficient of thermal expansion decreased from 9.23×10^(-6)℃^(-1) to 8.88×10^(-6)℃^(-1).The characteristic temperatures such as melting,forming,softening and glass transition temperatures increased with the increase of Al_(2)O_(3)/SiO_(2) ratio,while the glasses working temperature range became *** increasing Al_(2)O_(3)/SiO_(2) ratio and prolonging ion-exchange time enhanced the surface co.pressive stress(CS)and depth of stress layer(DOL).However,the increase of ion exchange temperature increased the DOL and decreased the CS affected by stress *** was a good linear relationship between stress relaxation and surface co.pressive *** strengthening significantly improved the hardness of glasses,which reached the maximum value of(622.1±10)MPa for sample with Al_(2)O_(3)/SiO_(2) ratio of 0.27 after heat treated at 410℃for 2 h.

关键词： network structure visco.ity ion exchange aluminosilicate glass

Shouhui Tongbian Capsule in treatment of co.stipation: Treatment and mechanism development

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Chinese Herbal Medicines 2024年第2期16卷 239-247页

作者： Liping Gong Hang Du Xin Guo Jianchao Li Xiaomin Zhu Xianhui Shen Zhiyan Huang Kaiyi Wu Guimin Zhang Rong Sun The Seco.d Hospital of Shandong University Jinan 250033China State Key Laboratory of Generic Manufacture technology of Chinese Traditional Medicine Lunan Pharmaceutical Group Co.Ltd.Linyi 276006China Tianjin University of Traditional Chinese Medicine Tianjin 301617China Shandong University of Traditional Chinese Medicine Jinan 250355China Advanced medical Research Institute Shandong UniversityJinan 250012China

co.stipation is co.mon in the diseases of the digestive system in *** the change in diet structure and the increase in life pressure,the prevalence rate increases year by *** traditional Chinese medicine(TCM),the location of the disease of co.stipation is in the large intestine,which is related to the dysfunction of lung,spleen,liver,kidney and other *** pathogenesis is co.ductive dysfunction of large *** on the theory,Shouhui Tongbian Capsule(SHTB)is co.posed of eight traditional Chinese medicines,including Polygoni multiflori Radix(Heshouwu in Chinese),Aloe(Luhui in Chinese),Cassiae Semen(Juemingzi in Chinese),Ginseng Radix et Rhizoma(Renshen in Chinese),Lycii Fructus(Gouqizi in Chinese),Asini co.ii co.la(Ejiao in Chinese),Aurantii Fructus Immaturus(Zhishi in Chinese),and Atractylodis Macrocephalae Rhizoma(Baizhu in Chinese),which co.ld help to release excessive turbid,and nourishing yin and supplementing qi in the *** study has been carried out to review the latest advances of SHTB in the treatment of *** results showed that significant effect of SHTB was found in the treatment of co.stipation,such as functional co.stipation,and co.stipation associated with tumor chemotherapy,co.itis,type 2 diabetes and chronic cardiac ***,obvious adverse reactions were not *** co.ld effectively treat five types of co.stipation,provide direction for the future exploration of SHTB in the treatment of other types of co.stipation。

关键词： co.stipation gastrointestinal hormones interstitial cells of cajal intestinal fluid secretion intestinal motility Shouhui Tongbian Capsule

co.posite structure Al_(2)O_(3)/Al_(2)O_(3)-YAG:Ce/YAG ceramics with high co.or spatial uniformity for white laser lighting

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Journal of Advanced Ceramics 2024年第2期13卷 189-197页

作者： Pengfei Sang Le Zhang Jian Kang Mingzhou Li Shiwei Chen Peng Yang Bingheng Sun Yang Li Wieslaw Strek Hao Chen Jiangsu Key Laboratory of Advanced Laser Materials and Devices School of Physics and Electronics EngineeringJiangsu Normal UniversityXuzhou 221116China Jiangsu Xiyi Advanced Materials Research Institute of Industrial technology Xuzhou 221400China Xuzhou EAGLED technology co. Ltd.Xuzhou 221116China Xuzhou Kangna Advanced Materials technology co. Ltd.Xuzhou 221116China Xuzhou Fuchang Electronic technology co. Ltd.Xuzhou 221116China Shanghai Institute of Optics Fine Mechanics Chinese Academy of SciencesShanghai 201800China School of Material Science and Engineering Shanghai Institute of TechnologyShanghai 201418China State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China Institute of Low Temperature and Structure Research Polish Academy of SciencesWroclaw 50-422Poland

co.posite ceramic phosphor(CCP)is a candidate light-co.version material to obtain the high-quality laser lighting *** based on the transmissive co.figuration model co.ld not simultaneously meet the requirements of angular co.or uniformity and high thermal *** this study,a novel co.posite structure ceramic was designed,including Al_(2)O_(3)-YAG:Ce/YAG layered ceramic with a size of 1 mm×1 mm for lighting,and Al_(2)O_(3) ceramic(φ=16.0 mm)was used as the wrapping material due to its outstanding thermal *** prepared ceramics exhibited excellent thermal performance and no yellow ring *** this design,we achieved the match of the intensity distribution of the blue and yellow lights,resulting in a high angular co.or uniformity of 0.9 with a view angle of±80°.All ceramics showed no luminous saturation phenomenon,even the laser power density was increased up to 47.51 W/mm^(2).A high-brightness white-light source with a luminous flux of 618 lm,a luminous efficiency of 126 lm/W,a CCT of 6615 K,and a CRI of 69.9 was obtained in the transmissive *** particular,the surface temperature of the ceramic was as low as 74.1℃ under a high laser radiation(47.51 W/mm^(2)).These results indicate that Al_(2)O_(3)/Al_(2)O_(3)-YAG:Ce/YAG co.posite structure ceramic is a promising luminescent material in the high-power laser lighting applications.

关键词： Al_(2)O_(3)/Al_(2)O_(3)-YAG:Ce/YAG angular co.or uniformity high thermal stability high-power laser lighting

High reco.ded co.or rendering performance of single-structured Ce,Mn:Y_(3)(Al,Sc)_(2)Al_(3)O_(12)phosphor ceramics for high-power white LEDs/LDs

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Journal of Advanced Ceramics 2024年第6期13卷 810-820页

作者： Xuanchu Liu co.gco.g Yang Yanbin Li Chang Min Jian Kang Tianyuan Zhou Chunming Zhou Chaofan Shi Cen Shao Bingheng Sun Wieslaw Strek Hao Chen Le Zhang Jiangsu Key Laboratory of Advanced Laser Materials and Devices School of Physics and Electronics EngineeringJiangsu Normal UniversityXuzhou 221116China Jiangsu Xiyi Advanced Materials Research Institute of Industrial technology Xuzhou 221400China Xuzhou EAGLED technology co. Ltd.Xuzhou 221116China Xuzhou Kangna Advanced Materials technology co. Ltd.Xuzhou 221116China Shanghai Institute of Optics Fine Mechanics Chinese Academy of SciencesShanghai 201800China Institute of Low Temperature and Structure Research Polish Academy of SciencesWroclaw 50-422Poland State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China

Achieving a high co.or rendering index(CRI)and luminous stability in single-structured Ce:Y_(3)Al_(5)O_(12)(Ce:YAG)phosphor ceramics(PCs)is crucial for high-power white light-emitting diodes or laser diodes(LEDs/LDs).However,cyan valleys and insufficient amounts of the red co.ponent in the Ce:YAG emission spectra significantly limit their real *** this work,a series of Ce,Mn:Y_(3)(Al,Sc)_(2)Al_(3)O_(12)(Ce,Mn:YSAG)PCs were fabricated by vacuum sintering,and efficient spectral regulation was realized for full-co.or *** cyan valley was filled by the blueshifted emission peak of Ce^(3+)via Sc^(3+)*** orange‒red emission at approximately 580 nm was effectively supplemented via Mn^(2+)*** particular,CRI of Ce,Mn:YSAG increased from 56.4 to 85.8,a 52%increase co.pared with that of Ce:YAG under high-power LED excitation,and the operating temperature was stable at approximately 50℃for long working ***,CRI of 80.9 co.ld still be obtained for PC-based white *** results indicated that Ce,Mn:YSAG PC,which has excellent CRI and luminous stability,is an extremely promising co.or co.vertor for high-power white LEDs/LDs.

关键词： co.or rendering index(CRI) co.or co.verter Ce:Y_(3)Al_(5)O_(12)(Ce:YAG)phosphor ceramics(PCs) high-power white light-emitting diodes or laser diodes(LEDs/LDs) luminous stability

N:ZnO/MoS_(2)-heterostructured flexible synaptic devices enabling optoelectronic co.modulation for robust artificial visual systems

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Nano Research 2024年第3期17卷 1902-1912页

作者： Lei Xu Wenxiao Wang Yang Li Yonghui Lin Wenjing Yue Kai Qian Qinglei Guo Jeonghyun Kim Guozhen Shen School of Information Science and Engineering University of JinanJinan 250022China School of Microelectronics Shandong UniversityJinan 250101China Department of Electronic co.vergence Engineering Kwangwoon UniversitySeoul 01897Republic of Korea School of Integrated Circuits and Electronics Beijing Institute of TechnologyBeijing 100081China

With the merits of non-co.tact,highly efficient,and parallel co.puting,optoelectronic synaptic devices co.bining sensing and memory in a single unit are promising for co.structing neuromorphic co.puting and artificial visual *** on this,a N:ZnO/MoS_(2)-heterostructured flexible optoelectronic synaptic device is developed in this work,and its capability in mimicking the synaptic behaviors is systemically investigated under the electrical and light *** synaptic functions,including synaptic plasticity,long-term/short-term memory,and learning-forgetting-relearning property,have been achieved in this synaptic ***,an artificial visual memory system integrating sense and memory is emulated with the device array,and the visual memory behavior can be regulated by varying the light ***,the optoelectronic co.modulation behavior is verified by applying mixed electric and light signals to the *** detail,a transient reco.ery property is disco.ered when the electric signals are applied in synergy during the decay of the light response,of which property facilitates the development of robust artificial visual ***,by superimposing electrical signals during the light response process,a differentiated response of the array is achieved,which can be used as a proof of co.cept for the co.or perception of the artificial visual system.

关键词： flexible synaptic device synaptic plasticity optoelectronic synapse robust visual memory optoelectronic co.modulation artificial visual system