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Superhydrophilic nickel hydroxide ultrathin nanosheets enable high-performance asymmetric supercapacitors

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Rare Metals 2024年第1期43卷 138-147页

作者： Yi-Ran wang Fei zhang Jian-Min Gu Xiao-yu zhao Ran zhao xing wang Tian-Hui Wu jing wang Ji-Dong wang De-Song wang State Key Laboratory of Metastable Materials Science and Technology(MMST) Hebei Key Laboratory of Applied ChemistryYanshan UniversityQinhuangdao 066004China Department of Food and Pharmaceutical Engineering Suihua UniversitySuihua 152000China School of Chemical Science and Engineering Tongji UniversityShanghai 200092China School of Sciences Hebei University of Science and TechnologyShijiazhuang 050018China

Superhydrophilic surfaces have been applied for supercapacitor;however,during energy storage reaction,how the wettability affects the process of electrochemical reaction specifically is still ***,we demonstrate superhydrophilic surface for promotion of electrochemical reactions by liquid affinity and further explain the mechanism,where the transition of the wettability state caused by the change in surface free energy is the main reason for the obvious increase in specific *** citric acid assistance strategy,an intrinsically hydrophobic Ni(OH)_(2)thick nanosheets(HNHTNs,16 nm)can be transitioned into superhydrophilic Ni(OH)_(2)ultrathin nanosheets(SNHUNs,6.8 nm),where the water contact angle was 0°and the surface free energy increased from 8.6to 65.8 mN·m^(-1),implying *** with HNHTNs,the specific capacitance of SNHUNs is doubled:from 1230 F·g^(-1)(HNHTNs)to 2350 F·g^(-1)(2A·g^(-1))and,even at 20 A·g^(-1),from 833 F·g^(-1)(HNHTNs)to 1670 F·g^(-1).The asymmetric capacitors assembled by SNHUNs and activated carbon show 52.44 Wh·kg^(-1)at 160W·kg^(-1)and excellent stability with~90%retention after5000 cycles(~80%retention after 9500 cycles).The promotion of electrochemical performances is ascribed to the change of surface wettability caused by surface free energy,which greatly increase affinity of electrode to the surrounding liquid environment to reduce the interface resistance and optimize the electron transport path.

关键词： Asymmetric supercapacitor Superhydrophilic interface Transition metal hydroxides Ultrathin nanosheets High specific capacitance

Bioinspired Hollow Mesoporous Silica Nanoparticles Coating on Titanium Alloy with Hierarchical Structure for Modulating Cellular Functions

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Journal of Bionic Engineering 2024年第3期21卷 1427-1441页

作者： Jiaxin zhang He Liu Jincheng wang jing Shang Mingwei Xu Xiujie Zhu Chao Xu Haotian Bai xin zhao Orthopedic Institute of Jilin Province Orthopedic Medical CenterThe Second Hospital of Jilin UniversityChangchun130041China Key Laboratory of Bionic Engineering(Ministry of Education) Jilin UniversityChangchun130025China Institute of Structured and Architected Materials Liaoning Academy of MaterialsShenyang110167China

3D-printed Porous Titanium Alloy Implants(pTi),owing to their biologically inertness and relatively smooth surface morphology,adversely affect the biological functions of surrounding *** address the challenges,constructing a bioinspired interface that mimics the hierarchical structure of bone tissue can enhance the cellular functions of *** this context,Hollow Mesoporous Silica Nanoparticles(HMSNs),renowned for their unique physicochemical properties and superior biocompatibility,offer a promising direction for this *** this research,the initially synthesized HMSNs were used to construct a“hollow-mesoporous-macroporous”hierarchical bioinspired coating on the pTi surface through the Layer-by-Layer ***,diverse morphologies of coatings were established by adjusting the deposition strategy of PDDA/HMSNs on the pTi surface(pTi-HMSN-2,pTi-HMSN-4,pTi-HMSN-6).A range of techniques were employed to investigate the physicochemical properties and regulation of cellular biological functions of the diverse HMSN coating ***,the pTi-HMSN-4 and pTi-HMSN-6 groups exhibited the uniform coatings,leading to a substantial enhancement in surface roughness and ***,the coating constructed strategy of pTi-HMSN-4 possessed commendable *** on the aforementioned findings,both pTi-HMSN-4 and pTi-HMSN-6 facilitated the adhesion,spreading,and pseudopodia extension of BMSCs,which led to a notable upsurge in the expression levels of vinculin protein in *** analysis indicates that the coating,when PDDA/HMSNs are deposited four times,possesses favorable overall *** research will provide a solid theoretical basis for the translation of HMSN bioinspired coatings for orthopedic implants.

关键词： Hollow mesoporous silica nanoparticles Bioinspired coating Titanium alloy Hierarchical structure Cellular functions

A Novel Method of Recycling CO_2 for Slag Splashing in Converter

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Journal of Iron and Steel Research International 2010年第12期17卷 11-16页

作者： zhao Hong-xin yuAN zhang-fu wang Wen jing PAN Yi-fang LI Shu-qing State Key I.aboratory of Multiphase and Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China College of Engineering Peking University Beijing 100871 China Graduate University Chinese Academy of Sciences Beijing 100049 China Tianjin Iron and Steel Group Co Ltd Tianjin 300301 China

Converter off-gas, an important energy resource for steel industries, is one of the weak points in the recov ery and utilization of secondary energy resources. To improve the level of recycling converter off-gas in steel plants, a novel approach to the recycle of CO2 separated from converter off-gas or other off-gas for the green slag splashing technique was developed, and the CO2 equilibrium conversion ratio of the green CO2 slag splashing under different technological conditions was calculated by the program of enthalpy （H）, entropy （S）, and heat capacity （C）, i.e. HSC software. Furthermore, the experiments of CO2 injected into molten converter slag were carried out, and the influencing factors of the green slag splashing technique using CO2 were analyzed. The experimental results showed that the carbon content for smooth slag splashing using COs was about 4.0%.

关键词： converter slag converter off-gas slag splashing CO2

Active corrosion protection of super-hydrophobic corrosion inhibitor intercalated Mg-Al layered double hydroxide coating on AZ31 magnesium alloy

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Journal of Magnesium and Alloys 2020年第1期8卷 291-300页

作者： xin wang Chuan jing yuxiang Chen Xiushuang wang Gang zhao xing zhang Liang Wu Xiaoying Liu Biqin Dong yuxin zhang State Key Laboratory of Mechanical Transmissions College of Materials Science and EngineeringChongqing UniversityChongqing 400044P.R.China Academy of Dazu Rock Carvings Chongqing 402360P.R China Research Institute of Petroleum Engineering Technology Shengli Oilfield CompanySinopecDongying 257000P.R.China Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education Chongqing Key Laboratory of Catalysis and New Environmental MaterialsCollege of Environment and ResourcesChongqing Technology and Business UniversityChongqing 400067P.R.China Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering Shenzhen UniversityShenzhen 518060P.R.China

Magnesium alloys,the advanced lightweight structural materials,have been successfully applied in the manufacturing ***,their poor corrosion resistance restrains the potential wide *** this work,anti-corrosion coatings were fabricated via the insitu growth of the corrosion inhibitors intercalated magnesium-aluminum layered double hydroxide(Mg-Al LDH)on AZ31 magnesium alloy and then post-sealing it by a super-hydrophobic ***,XRD,EDS,FTIR,XPS and contact angle test were conducted to analyze physical/chemical features of these *** polarization curves and electrochemical impedance spectroscopy were recorded to assess the anti-corrosion performance of prepared ***,Mg-Al LDH with molybdate intercalation and lauric acid modification achieves the excellent corrosion inhibition performance(99.99%)due to the multicomponent synergistic effect such as the physical protection of Mg-Al LDH,the corrosion inhibition of molybdate and super-hydrophobic properties of lauric *** work presents a scientific perspective and novel design philosophy to fabricate the efficient anti-corrosion coating to protect magnesium alloys and then expand their potential applications in other field.

关键词： Magnesium alloy Superhydrophobicity LDH films Corrosion inhibitor Corrosion resistance

Enhancing Nucleation and Detachment of Condensed Drops by Hybrid Wetting Surfaces

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Journal of Bionic Engineering 2018年第3期15卷 452-460页

作者： Xikui wang jing zhang Jia zeng Shanlin wang xinquan yu Youfa zhang Jiangsu Key Laboratory of Advanced Metallic Materials School of Materials Science and Engineering Southeast University Nanjing 211189 China

Hybrid wetting surfaces have been developed to enhance condensation heat transfer, water collection and seawater desalination, due to the advantages of high droplet nucleation efficiency and excellent removal effect. However, there are still many difficulties to overcome before a simple, operable and low-cost system can be exploited in large-scale practical applications. In the present report, an applicable way to fabricate sprayable hybrid wetting coatings mixed with superhydrophobic and hydrophilic particles is described. Conventional condensation tests are carried out for comparison of the nucleation, growth, coalescence and ejection behaviors of dewdrops on a hybrid wetting surface with different hydrophilic particles. Test results showed that a hybrid wetting surface with superhydrophobic and hydrophilic particles has a higher drop number density than a homogeneous superhydrophobic surface has. As expected, this advantage was exhibited also in the water collection test.

关键词： condensation heat transfer superhydrophobicity superhydrophilicity

P2X4 receptor participates in autophagy regulation in Parkinson’s disease

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Neural Regeneration Research 2021年第12期16卷 2505-2511页

作者： Xue zhang jing wang Jin-zhao Gao Xiao-Na zhang Kai-xin Dou Wan-Da Shi An-Mu Xie Department of Neurology Affiliated Hospital of Qingdao UniversityQingdaoShandong ProvinceChina Neurological Regulation Institute of Qingdao University QingdaoShandong ProvinceChina

Dysfunctional autophagy often occurs during the development of neurodegenerative diseases,such as Parkinson’s disease,Huntington’s disease,and Alzheimer’s *** purinergic P2X4 receptor is an ATP-gated ion channel that is widely expressed in the microglia,astrocytes,and neurons of the central and peripheral nervous systems.P2X4R is involved in the regulation of cellular excitability,synaptic transmission,and ***,the role played by P2X4R in Parkinson’s disease remains poorly *** models of Parkinson’s disease were established by injecting 6-hydroxydopamine into the substantia nigra pars compacta.P2X4R-targeted small interfering RNA(siRNA)was injected into the same area 1 week before injury induction to inhibit the expression of the P2X4 *** results showed that the inhibition of P2X4 receptor expression in Parkinson’s disease model rats reduced the rotation behavior induced by apomorphine treatment,increased the latency on the rotarod test,and upregulated the expression of tyrosine hydroxylase,brain-derived neurotrophic factor,LC3-II/LC3-I,Beclin-1,and phosphorylated tropomyosin receptor kinase B(TrkB)in brain tissue,while simultaneously reducing p62 *** findings suggest that P2X4 receptor activation might inhibit neuronal autophagy through the regulation of the brain-derived neurotrophic factor/TrkB signaling pathway,leading to dopaminergic neuron damage in the substantia nigra and the further inhibition of P2X4 receptor-mediated *** results indicate that P2X4 receptor might serve as a potential novel target for the treatment of Parkinson’s *** study was approved by the Animal Ethics Committee of Affiliated Hospital of Qingdao University(approval ***26119)on April 12,2016.

关键词： 6-hydroxydopamine apomorphine brain-derived neurotrophic factor dopaminergic neurons neuron degeneration P2X4R Parkinson’s disease TrkB autophagy

Rapid identification of time-frequency domain gravitational wave signals from binary black holes using deep learning

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Chinese Physics C 2024年第12期48卷 230-242页

作者： yu-xin wang Shang-Jie Jin Tian-Yang Sun jing-Fei zhang xin zhang Key Laboratory of Cosmology and Astrophysics(Liaoning)&College of Sciences Northeastern UniversityShenyang 110819China Key Laboratory of Data Analytics and Optimization for Smart Industry(Ministry of Education) Northeastern UniversityShenyang 110819China National Frontiers Science Center for Industrial Intelligence and Systems Optimization Northeastern UniversityShenyang 110819China

Recent developments in deep learning techniques have provided alternative and complementary approaches to the traditional matched-filtering methods for identifying gravitational wave(GW)*** rapid and accurate identification of GW signals is crucial to the advancement of GW physics and multi-messenger astronomy,particularly considering the upcoming fourth and fifth observing runs of *** this study,we used the 2D U-Net algorithm to identify time-frequency domain GW signals from stellar-mass binary black hole(BBH)*** simulated BBH mergers with component masses ranging from 7 to 50 M_(⊙)and accounted for the LIGO detector *** found that the GW events in the first and second observation runs could all be clearly and rapidly *** the third observing run,approximately 80% of the GW events could be *** contrast to traditional convolutional neural networks,the U-Net algorithm can output time-frequency domain signal images corresponding to probabilities,providing a more intuitive *** conclusion,the U-Net algorithm can rapidly identify the time-frequency domain GW signals from BBH mergers.

关键词： gravitational waves deep learning binary black holes time-frequency domain signals U-Net algorithm

Challenges Brought about by Rapid Changes in Chinese Diets: Comparison with Developed Countries and Implications for Further Improvement

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Biomedical and Environmental Sciences 2018年第10期31卷 781-786页

作者： zhao Li yun LIU Dan yu Dong Mei zhang Jian wang jing Zhong zhao Wen Hua National Institute for Nutrition and Health Chinese Center for Disease Control and Prevention

Given developments in urbanization, agricultural, and technological practices, the diet and lifestyle of developed countries has changed dramatically over the course of the last century[1].

关键词： Challenges Brought about by Rapid Changes in Chinese Diets Comparison with Developed Countries and Implications for Further Improvement

Recent Research Progress of Paper-Based Supercapacitors Based on Cellulose

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Energy & Environmental Materials 2024年第3期7卷 345-373页

作者： Chuanyin Xiong Tianxu wang jing Han zhao zhang Yonghao Ni College of Bioresources Chemical&Materials Engineering Shaanxi University of Science and TechnologyXi'an 710021China School of Materials Science and Engineering Tianjin Polytechnic UniversityTianjin 300387China Department of Chemical and Biomedical Engineering The University of MaineOronoMaine 04469USA University of New Brunswick Limerick Pulp&Paper CtrFredericton New Brunswick E3B 5A3Canada

In recent years,paper-based functional materials have received extensive attention in the field of energy storage due to their advantages of rich and adjustable porous network structure and good *** an important energy storage device,paper-based supercapacitors have important application prospects in many fields and have also received extensive attention from researchers in recent *** present,researchers have modified and regulated paper-based materials by different means such as structural design and material composition to enhance their electrochemical storage *** development of paper-based supercapacitors provides an important direction for the development of green and sustainable ***,it is of great significance to summarize the relevant work of paper-based supercapacitors for their rapid development and *** this review,the recent research progress of paper-based supercapacitors based on cellulose was summarized in terms of various cellulose-based composites,preparation skills,and electrochemical ***,some opinions on the problems in the development of this field and the future development trend were *** is hoped that this review can provide valuable references and ideas for the rapid development of paper-based energy storage devices.

关键词： cellulose electrochemical performance flexibility paper-based supercapacitor porous