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Chinese Journal of Structural Chemistry 2020年第8期39卷 1503-1508,1361页

作者： lai heng-Dong LIN Qi-Pu State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350007China

Under solvothermal conditions,two ribbon-shaped chalcogenidometalate coordination compounds(butyl-Sn)4S8M2(TEPA)2(M=Mn(1),Ni(2),TEPA=tetraethylenepentamine),have been synthesized and characterized by elemental analysis,energy dispersive X-ray,infrared/ultraviolet-visible spectroscopy,thermogravimetric analysis,single-crystal and powder X-ray *** 1 and 2 crystallize in the triclinic space group P1 with a=13.999(3),b=14.658(4),c=16.150(4)A,a=68.78(3)°,β=69.12(3)°,γ=72.07(3)°,V=2825.0(14)A3,Z=2,Mr=1448.28,μ=2.503 mm-1,F(000)=1444,GOOF=1.001,R=0.0629 and wR=0.1286 for 12855 observed reflections with I>2σ(I)for 1;and a=11.029(3),b=11.858(2),c=11.888(3)A,a=87.27(2)°,β=69.10(2)°,γ=83.63(2)°,V=1443.6(6)A^3,Z=1,Mr=1455.78,μ=2.660 mm^-1,F(000)=728,GOOF=1.017,R=0.0464 and wR=0.1185 for 9267 observed reflections with I>2σ(I)for 2,*** 1 and 2 are composed of linear hexamer{Sn4M2}(M=Mn for 1,and Ni for 2)with 8μ2-S2-bridges and 2 TEPA terminal *** the quite large inter-paramagnetic-cation spacing(dMn-S-Sn-S-Sn-S-Sn-S-Sn-S-Mn=13.485 A,dNi-S-Sn-S-Sn-S-Sn-S-Sn-S-Ni=14.078 A),two samples exhibit distinct ferromagnetic-like behaviors with the intradimer coupling constant(J)and Weiss(θ)values up to 6.8 cm^-1 and 8.5 K for 1 and 17.2 cm-1 and 21.1 K for 2 calculated from the temperature dependence of the magnetic susceptibility.

关键词： chalcogenidometalates organotin-sulfides linear complexes magnetic properties

Surface modification of LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 with Cr_2O_3 for lithium ion batteries

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Rare Metals 2012年第2期31卷 140-144页

作者： Li, Xiaowei Lin, Yingbin Liin, Ying lai, heng Huang, Zhigao Physics Department Fujian Normal University Fuzhou 350007 China

Cr 2 O 3-coated LiNi 1/3 Co 1/3 Mn 1/3 O 2 cathode materials were synthesized by a novel method. The structure and electrochemical properties of prepared cathode materials were measured using X-ray diffraction (XRD), scanning electron microscopy (SEM), charge-discharge tests, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). The measured results indicate that surface coating with 1.0 wt% Cr 2 O 3 does not affect the LiNi 1/3 Co 1/3 Mn 1/3 O 2 crystal structure (α-NaFeO 2 ) of the cathode material compared to the pristine material, the surfaces of LiNi 1/3 Co 1/3 Mn 1/3 O 2 samples are covered with Cr 2 O 3 well, and the LiNi 1/3 Co 1/3 Mn 1/3 O 2 material coated with Cr 2 O 3 has better electrochemical performance under a high cutoff voltage of 4.5 V. Moreover, at room temperature, the initial discharging capacity of LiNi 1/3 Co 1/3 Mn 1/3 O 2 material coated with 1.0 wt.% Cr 2 O 3 at 0.5C reaches 169 mAh·g 1 and the capacity retention is 83.1% after 30 cycles, while that of the bare LiNi 1/3 Co 1/3 Mn 1/3 O 2 is only 160.8 mAh·g 1 and 72.5%. Finally, the coated samples are found to display the improved electrochemical performance, which is mainly attributed to the suppression of the charge-transfer resistance at the interface between the cathode and the electrolyte.

关键词： lithium ion batteries LiNi 1/3 Co 1/3 Mn 1/3 O 2 Cr 2 O 3 coating

Microstructure and magnetic properties of electrodeposited Gd-Co alloy films

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Rare Metals 2008年第6期27卷 586-590页

作者： lai heng LI Jiaxin ZHOU Weichao ZHUANG Bin WU Xiaoping HUANG Zhigao Shool of Physics and Optoelectronics Technology Fujian Normal University Fuzhou 350007 China Department of Chemistry Fuzhou University Fuzhou 350002 China

Gd-Co alloy films were synthesized by potentiostatic electrolysis on Cu substrates in urea-acetamide-NaBr-KBr melt at 353 K. The electroreduction of Co^2＋ and Gd^3＋ was investigated by cyclic voltammetry. The reduction of Co^2＋ is an irreversible process. Gd^3＋ cannot be reduced alone, but it can be inductively co-deposited with Co^2＋. Both the Gd content and microstructure of the prepared Gd-Co alloy films can be controlled by the deposited potential. The content of Gd was analyzed using an inductively coupled plasma emission spectrometer （ICPES）, and the microstructure was observed by scanning electron micrograph （SEM）. The films were crystallized by heat-treatment at 823 K for 30 s in Ar atmosphere, and then were investigated by XRD. The hysteresis loops of the Gd-Co alloy films were measured by a vibrating sample magnetometer （VSM）. The experimental results reveal that the deposited Gd-Co alloy films are amorphous, while the annealing causes the samples to change from amorphous to polycrystalline, thus enhancing their magnetocrystalline anisotropy and coercivity. Moreover, the magnetic properties of the Gd-Co alloy films depend strongly on the Gd content.

关键词： electrodeposited films Gd-Co alloys surface microstructure crystalline phase magnetic properties

Electrochemical properties of carbon-coated LiFePO_4 and LiFe_(0.98)Mn_(0.02)PO_4 cathode materials synthesized by solid-state reaction

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Rare Metals 2012年第2期31卷 145-149页

作者： Lin, Ying Zeng, Baozhi Lin, Yingbin Li, Xiaowei Zhao, Guiying Zhou, Ting lai, heng Huang, Zhigao Department of Physics Fujian Normal University Fuzhou 350007 China

Olivine structured LiFePO 4 /C (lithium iron phosphate) and Mn 2+ -doped LiFe 0.98 Mn 0.02 PO 4 /C powders were synthesized by the solid-state reaction. The effects of manganese partial substitution and different carbon content coating on the surface of LiFePO 4 were considered. The structures and electrochemical properties of the samples were measured by X-ray diffraction (XRD), cyclic voltammetry (CV), charge/discharge tests at different current densities, and electrochemical impedance spectroscopy (EIS). The electrochemical properties of LiFePO 4 cathodes with x wt.% carbon coating (x= 3, 7, 11, 15) at =0.2C, 2C (1C= 170 mAh·g 1 ) between 2.5 and 4.3 V were investigated. The measured results mean that the LiFePO 4 with 7 wt.% carbon coating shows the best rate performance. The discharge capacity of LiFe 0.98 Mn 0.02 PO 4 /C composite is found to be 165 mAh·g 1 at a discharge rate, = 0.2C, and 105 mAh·g 1 at =2C, respectively. After 10 cycles, the discharge capacity has rarely fallen, while that of the pristine LiFePO 4 /C cathode is 150 mAh·g 1 and 98 mAh·g 1 at =0.2 and 2C, respectively. Compared to the discharge capacities of both electrodes above, the evident improvement of the electrochemical performance is observed, which is ascribed to the enhancement of the electronic conductivity and diffusion kinetics by carbon coating and Mn 2+-substitution.

关键词： lithium ion batteries LiFePO 4 carbon coating Mn-doping

Synchronization in Gradient Networks

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Synchronization in Gradient Networks

Nano-crystalline FeOOH mixed with SWNT matrix as a superior anode material for lithium batteries

第三届全国复杂动态网络学术论坛

作者： Choy heng lai Department of Physics National University of Singapore117542 Singapore Beijing-Hong Kong-Singapore Joint Centre for Nonlinear ＆ Complex Systems（Singapore） National University of SingaporeKent Ridge119260 Singapore

＜正＞The contradiction between the fact that many empirical networks possess power-law degree distribution and the finding that networks of heterogeneous degree distribution are difficult to synchronize has been a paradox in the study of network synchronization. Surprisingly, we find that this paradox can be well solved when proper gradients are introduced to the network links, i.e. heterogeneous degree distribution is in favor of synchronization in gradient networks. We analyze the general properties of gradient networks and explore their performance in enhancing network sychronizability. Based on these understandings, we outline the basic principles for constructing efficient gradient networks and propose a specific coupling scheme for verification. A detail comparison between the proposed coupling scheme and the previous asymmetric coupling schemes is conducted, where the new scheme is distinguished by using less network information while achieve higher synchronizability. Moreover, under the framework of gradient network, the synchronizabil-ity improvement factors employed in former studies can be well unified and their functions in improving network synchronizability can be easily identified. The validity of the findings is verified by analytical estimates as well as directed simulations on coupled nonidentical oscillators. Our study therefore suggests that, in addition to the topology advantage, scale-free networks also manifest their dynamical advantage in network synchronization when proper gradients are considered.

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Journal of Energy Chemistry 2014年第4期23卷 513-518页

作者： Mingzhong Zou Weiwei Wen Jiaxin Li Yingbin Lin heng lai Zhigao Huang College of Physics and Energy Fujian Normal University State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences

Nano-crystalline FeOOH particles （5-10 nm） have been uniformly mixed with electric matrix of single-walled carbon nanotubes （SWNTs） for forming FeOOH/SWNT composite via a facile ultrasonication method. Directly using the FeOOH/SWNT composite （containing 15 wt% SWNTs） as anode material for lithium battery enhances kinetics of the Li＋ insertion/extraction processes, thereby effectively improving re- versible capacity and cycle performance, which delivers a high reversible capacity of 758 mAh.g-1 under a current density of 400 mA.g-1 even after 180 cycles, being comparable with previous reports in terms of electrochemical performance for FeOOH anode. The good electrochemical performance should be ascribed to the small particle size and nano-crystalline of FeOOH, as well as the good electronic conductivity of SWNT matrix.

关键词： FeOOH/SWNT composite electrochemical properties energy storage lithium batteries anode material

Teneligliptin mitigates diabetic cardiomyopathy by inhibiting activation of the NLRP3 inflammasome

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World Journal of Diabetes 2024年第4期15卷 724-734页

作者： Gu-Lao Zhang Yuan Liu Yan-Feng Liu Xian-Tao Huang Yu Tao Zhen-Huan Chen heng-Li lai Department of Cardiology Jiangxi Provincial People's HospitalThe First Affiliated Hospital of Nanchang Medical CollegeNanchang 330000Jiangxi ProvinceChina

BACKGROUND Diabetic cardiomyopathy(DCM),which is a complication of diabetes,poses a great threat to public *** studies have confirmed the role of NLRP3(NOD-like receptor protein 3)activation in DCM development through the inflammatory *** is an oral hypoglycemic dipeptidyl peptidase-IV inhibitor used to treat *** has recently been reported to have anti-inflammatory and protective effects on myocardial *** To examine the therapeutic effects of teneligliptin on DCM in diabetic *** Streptozotocin was administered to induce diabetes in mice,followed by treatment with 30 mg/kg *** Marked increases in cardiomyocyte area and cardiac hypertrophy indicator heart weight/tibia length reductions in fractional shortening,ejection fraction,and heart rate;increases in creatine kinase-MB(CK-MB),aspartate transaminase(AST),and lactate dehydrogenase(LDH)levels;and upregulated NADPH oxidase 4 were observed in diabetic mice,all of which were significantly reversed by ***,NLRP3 inflammasome activation and increased release of interleukin-1βin diabetic mice were inhibited by *** mouse cardiomyocytes were treated with high glucose(30 mmol/L)with or without teneligliptin(2.5 or 5μM)for 24 ***3 inflammasome *** in CKMB,AST,and LDH levels in glucose-stimulated cardiomyocytes were markedly inhibited by teneligliptin,and AMP(p-adenosine 5‘-monophosphate)-p-AMPK(activated protein kinase)levels were ***,the beneficial effects of teneligliptin on hyperglycaemia-induced cardiomyocytes were abolished by the AMPK signaling inhibitor compound *** Overall,teneligliptin mitigated DCM by mitigating activation of the NLRP3 inflammasome.

关键词： Diabetic cardiomyopathy Teneligliptin NLRP3 AMPK Interleukin-1β

SnO_2 nanospheres among GO and SWNTs networks as anode for enhanced lithium storage performances

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Journal of Energy Chemistry 2016年第3期25卷 445-449页

作者： Weiwei Wen Mingzhong Zou Qian Feng Jiaxin Li heng lai Zhigao Huang College of Physics and Energy Fujian Normal University and Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences

Conducting supporters of purified single-walled carbon nanotubes（SWNTs） and graphene oxide（GO）were used to confine pomegranate-structured Sn O2 nanospheres for forming SnO-GO-SWNT *** anode material for lithium ion batteries（LIBs）, this composite exhibits a stable and large reversible capacity together with an excellent rate capability. In addition, an analysis of the AC impedance spectroscopy has been used to confirm the enhanced mechanism for LIB performance. The improved electrochemical performance should be ascribed greatly to the reinforced synergistic effects between GO and SWNT networks, and their enhanced contribution of the conductivity. These results indicate that this composite has potential for utilization in high-rate and durable LIBs.

关键词： Lithium batteries SnO_2-GO-SWNT anodes Electrochemical performance Energy storage

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《格萨尔》与印度两大史诗的言语模式比较

西藏研究 2010年第4期 34-38页

作者：王恒来西北民族大学<格萨尔>研究院甘肃兰州730030

在视角模式上,《格萨尔》史诗中的全知视角模式和内视角模式交替使用,内视角模式占主导地位;在《罗摩衍那》中,全知视角模式和内视角模式虽交替使用,但彼此交融,没有明显的诗节区分;在《摩诃婆罗多》中,史诗一方面表现出以具体形象呈现... 详细信息

在视角模式上,《格萨尔》史诗中的全知视角模式和内视角模式交替使用,内视角模式占主导地位;在《罗摩衍那》中,全知视角模式和内视角模式虽交替使用,但彼此交融,没有明显的诗节区分;在《摩诃婆罗多》中,史诗一方面表现出以具体形象呈现的全知视角模式特征,另一方面,其整个故事的进程又是由内视角模式来推动的。在韵律模式上,《格萨尔》史诗大都合辙押韵,听来朗朗上口,音调婉转;印度两大史诗则较多地强调了律的一面,而忽略了韵的一面。在言语结构模式上,《格萨尔》史诗的韵文部分较突出地表现出了程式化特征,而印度两大史诗的程式化特征则不十分明显。在《摩诃婆罗多》中,大量出现的敬语,反映了印度史诗言辞委婉的柔情特质。

关键词：《格萨尔》印度两大史诗言语模式

Application of Percutaneous Balloon Mitral Valvuloplasty in Patients of Rheumatic Heart Disease Mitral Stenosis Combined with Tricuspid Regurgitation

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Chinese Medical Journal 2015年第11期128卷 1479-1482页

作者： Zhang-Qiang Chen Lang Hong Hong Wang Lin-Xiang Lu Qiu-Lin Yin heng-Li lai Hua-Tai Li Xiang Wang Department of Cardiology Institute of Cardiovascular Disease of Jiangxi Province Jiangxi Provincial People's Hospital Nanchang Jiangxi 330006 China

Background： Tricuspid regurgitation （TR） is frequently associated with severe mitral stenosis （MS）, the importance of significant TR was often neglected. However, TR influences the outcome of patients. The aim of this study was to investigate the efficacy and safety of percutaneous balloon mitral valvuloplasty （PBMV） procedure in rheumatic heart disease patients with mitral valve （MV） stenosis and tricuspid valve regurgitation. Methods： Two hundred and twenty patients were enrolled in this study due to rheumatic heart disease with MS combined with TR. Mitral balloon catheter made in China was used to expand MV. The following parameters were measured before and after PBMV： MV area （MVA）, TR area （TRA）, atrial pressure and diameter, and pulmonary artery pressure （PAP）. The patients were followed for 6 months to 9 years. Results： After PBMV, the MVAs increased significantly （1.7 ± 0.3 cm2 vs. 0.9 ± 0.3 cm2, P 〈 0.01）; TRA significantly decreased （6.3 ± 1.7 cm2 vs. 14.2 ± 6.5 cm2, P 〈 0.01）, right atrial area （RAA） decreased significantly （21,5 ± 4.5 cm2 vs. 25.4 ± 4.3 cm〈 P 〈 0.05）, TRA/RAA （%） decreased significantly （29.3 ± 3.2% vs. 44.2 ± 3.6%, P 〈 0.01）. TR velocity （TRV） and TR continue time （TRT） as well as TRV - TRT decreased significantly （ 183.4± 9.4 cm/s vs. 254.5 ± 10.7 cm/s, P 〈 0.01 ; 185.7 ± 13.6 ms vs. 238.6 ±l 1.3 ms, P 〈 0.01 ; 34.2 ±5.6 cm vs. 60.7 ± 8.5 cm, P 〈 0.01, respectively）, The postoperative left atrial diameter （LAD） significantly reduced （41.3 ± 6.2 mm vs. 49.8± 6.8 mm, P 〈 0.01） and the postoperative right atrial diameter （RAD） significantly reduced （28.7 ±5.6 mm vs. 46.5 ± 6.3 mm, P 〈 0.01 ）; the postoperative left atrium pressure significantly reduced （ 15.6 ± 6.1 mmHg vs. 26.5 ± 6.6 mmHg, P 〈 0.01 ）, the postoperative right atrial pressure decreased significantly （ 13.2 ±2.4 mmHg vs. 18.5 ±4.3 mmHg, P 〈 0.01 ）. The pulmonary arterial pressure decreased significantly after PBMV （48.2 ± 10.3 mmHg vs. 60.6 ±15.5 mmHg, P 〈 0.01）. The sympto

关键词： Apply Value Mitral Stenosis with Tricuspid Valve Regurgitation Percutaneous Balloon Mitral Valvuloplasty Rheumatic Heart Disease