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Journal of Energy Chemistry 2018年第5期27卷 1333-1340页

作者： Yuchen Liu Feng Liang Yang Zhao lihong Yu Le Liu Jingyu Xi The State Key Laboratory of Refractories and Metallurgy School of Chemistry and Chemical Engineering Wuhan University of Science and Technology Institute of Green Chemistry and Energy Graduate School at Shenzhen Tsinghua University School of Applied Chemistry and Biological Technology Shenzhen Polytechnic

vanadium flow battery （vFB） is a fast going and promising system for large-scale stationary energy stor- age. However, drawbacks such as low power density and narrow temperature window caused by poor catalytic activity of graphite felt （GF） electrodes limit its worldwide application. In this paper, bismuth, as a low-cost, no-toxic and high-activity electrocatalyst, is used to modify the thermal activated GF （TGF） via a facile hydrothermal method. Bismuth can effectively inhibit the side reaction of hydrogen evolution in wide temperature range, while promoting the v2＋/v3＋ redox reaction. As a result, the vFB assembled with Bi/TGF as negative electrode demonstrates outstanding rate performance under the current density up to 400 mAcm-2, as well as a long-term stability over 600 charging/discharging cycles at a high cur- rent density of 150mA cm-2. Moreover, it also shows excellent temperature adaptability from -10 ℃ to 50 ℃ and high durability for life test at the temperature of 50 ℃.

关键词： vanadium flow battery Graphite felt electrode Bismuth Hydrogen evolution reaction Wide temperature

Flexible SnS nanobelts： Facile synthesis, formation mechanism and application in Li-ion batteries

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Nano Research 2013年第1期6卷 55-64页

作者： Jun Lu Caiyun Nan lihong Li Qing Peng Yadong Li DepartmentofChemistry Tsinghua University Beijing 100084 China State Key Laboratory of Low-Dimensional Quantum Physics Tsinghua University Beijing 100084 China

[020]-oriented tin sulfide nanobelts with a length/thickness ratio of 100 have been synthesized by a facile hydrothermal method without any surfactants, and the nanobelts have shown good strain-accommodating properties as well as good electrochemical performance as the anode for Li-ion batteries. The formation of the nanobelts results from a precipitation-dissolution-transformation mechanism, and the [020] oriented growth can be ascribed to the {010} facet family having the lowest atomic density. In particular, SnS shows clear Li-Sn alloying/de-alloying reversible reactions in the potential range 0.1-1.0 v. Based on galvanostatic measurements and electrochemical impedance spectroscopy, SnS nanobelts have shown impressive rate performance. The post-cycled SnS nanobelts were completely transformed into metallic tin, and preserved the one-dimensional structure due to their flexibility which accommodates the large volumetric expansion.

关键词： tin sulfide nanobelts Li-ion battery morphology preservation

Catheter ablation of premature ventricular contractions arising from left anterior fascicle guided by an earliest presystolic Purkinje potential

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Catheter ablation of premature ventricular contractions aris...

Interdigital MnO_(2)/PEDOT Alternating Stacked Microelectrodes for High-Performance On-Chip Microsupercapacitor and Humidity Sensing

2015年浙江省心电生理与起搏学术年会

作者： wang YunFan wang lihong Zhejiang Provincial People’s Hospital

Background Studies referred to catheter ablation for premature ventricular contractions(PvCs) arising from left anterior fascicle(LAF) is rarely *** applicability of either earliest ventricular activation or Purkinje(P)potential mapping for ablation of PvC-LAF is still needed to be fully *** This study was undertaken to investigate the electrophysiological mechanism and ablation strategies of *** A total of three patients with frequent PvC-LAF were enrolled into ***-lead electrocardiography was performed before ablation to analyze the morphologic characteristics of the *** ablation was applied at the site of the earliest ventricular activation and earliest presystolic P potential,*** two mapping techniques were compared according to the ablation *** The PvC-LAF presented with Rs or rsR’ pattern in lead v1,rS pattern in lead I and avL,and qR pattern in lead Ⅱ,Ⅲ,and *** at the site of earliest ventricular activation did not terminate the ***,ablation at the site of earliest presystolic P potential could abolish the arrhythmia in all the three *** The site with recordings of the earliest presystolic P potential instead of the earliest ventricular activation was the only correct site that could be effective for ablation of PvC arising from genuine LAF system.

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Energy & Environmental Materials 2024年第2期7卷 257-267页

作者： Muhammad Tahir lihong Li Liang He Zhongyuan Xiang Zeyu Ma Waqas Ali Haider Xiaoqiao Liao Yanlin Song Key Laboratory of Green Printing CAS Research/Education Centre for Excellence in Molecular SciencesInstitute of Chemistry Chinese Academy of Sciences(ICCAS)Beijing 100190China School of Mechanical Engineering Sichuan UniversityChengdu 610065China A.S.Chemical Laboratories Inc. Concord L4K 4M4ON Canada

For microelectronic devices,the on-chip microsupercapacitors with facile construction and high performance,are attracting researchers'prior consideration due to their high compatibility with modern ***,we proposed interchanging interdigital Au-/MnO_(2)/polyethylene dioxythiophene stacked microsupercapacitor based on a microfabrication process followed by successive electrochemical *** stacked configuration of two pseudocapacitive active microelectrodes meritoriously leads to an enhanced contact area between MnO_(2)and the conductive and electroactive layer of polyethylene dioxythiophene,hence providing excellent electron transport and diffusion pathways of electrolyte ions,resulting in increased pseudocapacitance of MnO_(2)and polyethylene *** stacked quasi-solid-state microsupercapacitors delivered the maximum specific capacitance of 43 mF cm^(-2)(211.9 F cm^(-3)),an energy density of 3.8μWh cm^(-2)(at a voltage window of 0.8 v)and 5.1μWh cm^(-2)(at a voltage window of 1.0 v)with excellent rate capability(96.6%at 2 mA cm^(-2))and cycling performance of 85.3%retention of initial capacitance after 10000 consecutive cycles at a current density of 5 mA cm^(-2),higher than those of ever reported polyethylene dioxythiophene and MnO_(2)-based planar *** from the favorable morphology,bilayer microsupercapacitor is utilized as a flexible humidity sensor with a response/relaxation time superior to those of some commercially available integrated *** strategy will be of significance in developing high-performance on-chip integrated microsupercapacitors/microsensors at low cost and environment-friendly routes.

关键词： electrochemical polymerization microsensor microsupercapacitor stacked microelectrode

Effect of high pressure torsion process on the microhardness,microstructure and tribological property of Ti6Al4v alloy

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Journal of Materials Science & Technology 2021年第35期94卷 183-195页

作者： Guanyu Deng Xing Zhao lihong Su Peitang Wei Liang Zhang Lihua Zhan Yan Chong Hongtao Zhu Nobuhiro Tsuji School of Mechanical MaterialsMechatronic and Biomedical EngineeringUniversity of WollongongNSW 2500Australia Department of Materials Science and Engineering Kyoto UniversityKyoto 606-8501Japan State Key Laboratory of High Performance Complex Manufacturing.Central South University Changsha 4W083China Stare Key Laboratory of Mechanical Transmissions Chongqing UniversityChongqing 400030China International Joint Laboratory for Light Alloys(MOE) College of Materials Science and EngineeringChongqing UniversityChongqing 400044China Department of Materials Science and Engineering University of California BerkeleyCA 94720United States Elements Strategy Initiative for Structural Materials(ESISM) Kyoto UniversityKyoto 606-8501Japan

In the present study,a fully lamellar Ti6Al4v alloy was severely deformed by high pressure torsion(HPT)process under a pressure of 7.5 GPa up to 10 *** results revealed that the microhardness of Ti6Al4v was increased remarkably by about~41%and saturated at about 432 Hv after the HPT process.A relatively uniform bulk nanostructured Ti6Al4v alloy with an average grain size of about52.7 nm was obtained eventually,and no obvious formation of metastableωphase was detected by XRD *** the first time,the tribological properties of the HPT processed Ti6Al4v alloy were investigated by a ball-on-disc test at room temperature under a dry *** was found that HPT process had a great influence on the friction and wear behaviors of Ti6Al4v *** increasing the number of HPT revolutions,both friction coefficient and specific wear rate were obviously decreased due to the reduction of abrasion and adhesion *** being deformed by 10 HPT revolutions,the friction coefficient was reduced from about 0.49 to 0.37,and the specific wear rate was reduced by about 48%.The observations in this study indicated that HPT processed Ti6Al4v alloys had good potential in structural applications owing to their greatly improved mechanical and tribological properties.

关键词： Severe plastic deformation High pressure torsion UFG microstructure Mechanical property Friction and wear Ti6Al4v alloy

Synergistic effect of v and Fe in Ni/Fe/v ternary layered double hydroxides for efficient and durable oxygen evolution reaction

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Frontiers of Chemical Science and Engineering 2023年第1期17卷 102-115页

作者： lihong Chen Ruxin Deng Shaoshi Guo Zihuan Yu Huiqin Yao Zhenglong Wu Keren Shi Huifeng Li Shulan Ma Beijing Key Laboratory of Energy Conversion and Storage Materials College of ChemistryBeijing Normal UniversityBeijing 100875China School of Basic Medical Sciences Ningxia Medical UniversityYinchuan 750004China Analytical and Testing Center Beijing Normal UniversityBeijing 100875China State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia UniversityYinchuan 750021China

High-performance and stable electrocatalysts are vital for the oxygen evolution reaction(OER).Herein,via a one-pot hydrothermal method,Ni/Fe/v ternary layered double hydroxides(NiFev-LDH)derived from Ni foam are fabricated to work as highly active and durable electrocatalysts for *** changing the feeding ratio of Fe and v salts,the prepared ternary hydroxides were *** an Fe:v ratio of 0.5:0.5,NiFev-LDH exhibits outstanding OER activity superior to that of the binary hydroxides,requiring overpotentials of 269 and 274 mv at 50 mA·cm^(−2)in the linear sweep voltammetry and sampled current voltammetry measurements,***,NiFev-LDH shows extraordinary long-term stability(≥75 h)at an extremely high current density of 200 mA·cm^(−2).In contrast,the binary hydroxides present quick decay at 200 mA·cm^(−2)or even reduced current densities(150 and 100 mA·cm^(−2)).The outstanding OER performance of NiFev-LDH benefits from the synergistic effect of v and Fe while doping the third metal into bimetallic hydroxide layers:(a)Fe plays a crucial role as the active site;(b)electron-withdrawing v stabilizes the high valence state of Fe,thus accelerating the OER process;(c)v further offers great stabilization for the formed intermediate of FeOOH,thus achieving superior durability.

关键词： oxygen evolution reaction electrocatalysts ternary layered double hydroxides long-term stability

Hydroxyapatite Growth on Ti MAO Surface Assisted by the Addition of Calcium and Phosphate Ions in Hydrothermal Treatment Solution

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稀有金属材料与工程 2012年第S1期41卷 478-480页

作者： Ma Fengcang Liu Ping Li Wei Liu Xinkuan Chen Xiaohong Yang lihong Zhu Jianmin Shanghai Univ Sci & Technol Sch Mat Sci & Engn Shanghai 200093 Peoples R China

Microarc oxidation was performed on Ti-6Al-4v in an electrolyte containing calcium and phosphate *** were hydrothermally treated in different solutions containing calcium and phosphate *** hydroxyapatite coatings were *** was found that hydroxyapatite coating is improved by the addition of calcium and phosphate ions in hydrothermal *** addition of phosphate ions promotes the nucleation and growth of *** the effect of single calcium ions is not *** addition of calcium and phosphate ions increases the nucleation and growth of hydroxyapatite,but decreases the preferred growth trend in some extent.

关键词： biomaterials surfaces hydroxyapatite crystal growth hydrothermal treatment thick film

Fabrication of room temperature continuous-wave operation GaN-based ultraviolet laser diodes

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Journal of Semiconductors 2017年第5期38卷 1-3页

作者： Degang Zhao Jing Yang Zongshun Liu Ping Chen Jianjun Zhu Desheng Jiang Yongsheng Shi Hai wang lihong Duan Liqun Zhang Hui Yang State Key Laboratory on Integrated Optoelectronics Institute of SemiconductorsChinese Academy of Sciences School of Electronic Electrical and Communication EngineeringUniversity of Chinese Academy of Sciences Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences

Two kinds of continuous-wave GaN-based ultraviolet laser diodes（LDs） operated at room temperature and with different emission wavelengths are *** LDs epitaxial layers are grown on GaN substrate by metalorganic chemical vapor deposition,with a 10 × 600 μm^2 ridge waveguide *** electrical and optical characteristics of the ultraviolet LDs are investigated under direct-current injection at room *** stimulated emission peak wavelength of first LD is 392.9 nm,the threshold current density and voltage is 1.5kA/cm^2 and 5.0 v,*** output light power is 80 mW under the 4.0 kA/cm^2 injection current *** stimulated emission peak wavelength of second LD is 381.9 nm,the threshold current density the voltage is2.8 kA/cm^2 and 5.5 v,*** output light power is 14 mW under a 4.0 kA/cm^2 injection current density.

关键词： GaN-based ultraviolet laser diodes continuous-wave operation threshold current

On Torsion Theories of Regulars and v-Rings

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Chinese Quarterly Journal of Mathematics 1998年第3期13卷 12-17,页

作者： Zhang lihong(Department of Mathematics, Siping Normal College,136000) 四平师范学院数学系吉林四平 136000

In the paper,we proved that R is τυ ring if and only if R is τ regular ring and studied their properties further.

关键词：正则环 v-环挠理论

InSe/hBN/graphite heterostructure for high-performance 2D electronics and flexible electronics

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Nano Research 2020年第4期13卷 1127-1132页

作者： Liangmei Wu Jinan Shi Zhang Zhou Jiahao Yan Aiwei wang Ce Bian Jiajun Ma Ruisong Ma Hongtao Liu Jiancui Chen Yuan Huang Wu Zhou lihong Bao Min Ouyang Sokrates T.Pantelides Hong-Jun Gao Institute of Physics Chinese Academy of SciencesP.O.Box 603y Beijing 100190China University of Chinese Academy of Sciences&CAS Center for Excellence in Topological Quantum Computation Chinese Academy of SciencesPO Box 603Beijing 100190China Songshan Lake Materials Laboratory Dongguan 523808China Department of Physics University of MarylandMD 20742USA Department of Physics and Astronomy and Department of Electrical Engineering and Computer Science Vanderbilt UniversityNashvilleTennessee 37235USA

Two-dimensional(2D)materials as channel materials provide a promising alternative route for future electronics and flexible electronics,but the device performance is affected by the quality of interface between the 2D-material channel and the gate *** we demonstrate an indium selenide(lnSe)/hexagonal boron nitride(hBN)/graphite heterostructure as a 2D field-effect transistor(FET),with InSe as channel material,hBN as dielectric,and graphite as *** fabricated FETs feature high electron mobility up to 1,146 cm2·v^-1·s^-1 at room temperature and on/off ratio up to 1010 due to the atomically flat gate *** digital inverters based on InSe/hBN/graphite heterostructures are constructed by local gating modulation and an ultrahigh voltage gain up to 93.4 is *** advantages of the mechanical flexibility of these materials,we integrated the heterostructured InSe FET on a flexible substrate,exhibiting little modification of device performance at a high strain level of up to 2%.Such high-performance heterostructured device configuration based on 2D materials provides a new way for future electronics and flexible electronics.

关键词： InSe van der Waals heterostruture 2D electronics flexible electronics