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Science China Materials 2016年第12期59卷 1003-1016页

作者：韩陶然陈亚杰田国辉周卫肖玉婷李金鑫付宏刚 Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of ChinaHeilongjiang UniversityHarbin 150080China National Center for International Research on Catalytic technology Harbin 150080China

The production of H_2 and O_2 from solar-light photocatalytic water splitting has attracted significant research attention as a clean and renewable source of *** this study,hydrogenated TiO_2/SrTiO_3 porous microspheres were prepared as a high-performance *** glycerolate and then strontium complex precursors were first prepared via a two-step solvothermal process,then,after calcination in air and subsequent H_2/Ar reduction treatments,hydrogenated TiO_2/SrTiO_3 porous microspheres with controllable defects and band positions were *** characterization techniques were used to demonstrate that the catalyst heterostructures,the oxygen-vacancy content,and the unique porous structures synergistically enhanced the visible-light harvesting abilities and photogenerated charge separation,and resulted in improved photocatalytic efficiency for H_2 and O_2 *** expected,the optimum treatment conditions provided hydrogenated TiO_2/SrTiO_3 porous microspheres that showed excellent photocatalytic activity with H_2 and O_2 evolution rates of 239.97 and 103.79μmol h^(-1)(50 mg catalyst,under AM 1.5 irradiation),respectively,which were ca.5.9 and 6.6times higher,respectively,than those of solid TiO_2/SrTiO_***,this type of hydrogenated TiO_2/SrTiO_3porous microsphere catalyst shows great potential as a photocatalyst for solar-energy conversion applications.

关键词： TiO2/TiO3 heterostructure oxygen vacancy visible-light absorption photocatalysis

Influence of adatom migration on wrinkling morphologies of AlGaN/GaN micro-pyramids grown by selective MOVPE

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Chinese Physics B 2017年第6期26卷 449-453页

作者：陈杰黄溥曼韩小标潘郑州钟昌明梁捷智吴志盛刘扬张佰君 School of Electronics and Information Technology Sun Yat-sen University Guangzhou 510275 China State Key Laboratory of Optoelectronic Materials and Technologies Sun Yat-sen University Guangzhou 510275 China Institute of Power Electronics and Control Technology Sun Yat-sen University Guangzhou 510275 China

Ga N micro-pyramids with AlGaN capping layer are grown by selective metal–organic–vapor phase epitaxy（MOVPE）. Compared with bare Ga N micro-pyramids, AlGaN/Ga N micro-pyramids show wrinkling morphologies at the bottom of the structure. The formation of those special morphologies is associated with the spontaneously formed AlGaN polycrystalline particles on the dielectric mask, owing to the much higher bond energy of Al–N than that of Ga–N. When the sizes of the polycrystalline particles are larger than 50 nm, the uniform source supply behavior is disturbed, thereby leading to unsymmetrical surface morphology. Analysis reveals that the scale of surface wrinkling is related to the migration length of Ga adatoms along the AlGaN {1ī01} facet. The migration properties of Al and Ga further affect the distribution of Al composition along the sidewalls, characterized by the μ-PL measurement.

关键词： metal-organic-vapor phase epitaxy selective area growth migration length

Structural Determination of Three Sphingolipids from Two Marine-derived Mangrove Endophytic Fungal Strains

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Marine Science Bulletin 2007年第1期9卷 20-25页

作者：朱峰陈光英林永成佛山科学技术学院化学与化工系广东佛山528000 海南师范大学化学系海南海口571158 中山大学化学科学与工程学院广东广州510275

A set of three sphingolipids, N-2′-hydroxyplmitoyl-1-O-β-D-glucopyranosyl-9-methyl-4E, 8E-sphingadiene （A）, N-2′-hydroxyl-3′E-octadecenoyl-1-O-β-D-glucopyranosyl-9-methyl-4E, 8E-sphingediene （B） and N-palmitoyldihydrosphingosine （C）, were isolated from two marine-derived mangrove endophytic fungal strains （strains No. 1924 and 3893） from the South China Sea. Their structures were elucidated by 2D NMR and FABMS methods. It is the first time that these sphingolipids were separated and obtained from marine-derived mangrove endophytic fungus from the South China Sea.

关键词： marine fungus metabolite sphingolipid

Sc 改性的6005A和5083铝合金MIG异种接头的显微组织特征和腐蚀行为(英文)

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Transactions of Nonferrous Metals Society of China 2023年

作者：徐国富刘亮邓英曾渝曹俊昌唐磊彭小燕段佳琦梁美婵潘清林中南大学材料科学与工程学院中南大学粉末冶金国家重点实验室宝山钢铁股份有限公司 Warwick Manufacturing Group， The University of Warwick 广东伟业铝厂集团有限公司

运用腐蚀测试和电子显微组织表征方法，研究了Sc 改性的6005A ( 简称：6005A+Sc)和5083铝合金MIG异种接头的显微组织特征和腐蚀行为。结果表明：异种接头具有高应力腐蚀抗力，经慢应变速率拉伸测试后仍保留高强度。5083侧热影响区和基... 详细信息

运用腐蚀测试和电子显微组织表征方法，研究了Sc 改性的6005A ( 简称：6005A+Sc)和5083铝合金MIG异种接头的显微组织特征和腐蚀行为。结果表明：异种接头具有高应力腐蚀抗力，经慢应变速率拉伸测试后仍保留高强度。5083侧热影响区和基材区的晶间腐蚀和剥落腐蚀敏感性均高于6005A+Sc相应侧，这主要因为：5083侧的基材区和热影响区沿轧制方向存在大量的Al2Mg3相和微米级别的Al6(Mn， Fe)晶间相；而6005A+Sc侧基材区和热影响区β-Mg2Si相是非连续分布在晶界，且具有较小晶粒尺寸和低的腐蚀电流密度。

关键词： MIG 异种接头铝合金腐蚀显微组织

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聚丙烯酸钠高吸水性复合材料的研究

化学推进剂与高分子材料 2019年第1期17卷 55-57页

作者：霍景沛张裕邦邹婉莹胡晓洪邓前军陈东初佛山科学技术学院材料科学与能源工程学院广东佛山528000

以丙烯酸、膨润土为原料,过硫酸钾为引发剂,N,N'—亚甲基双丙烯酰胺为交联剂,采用溶液法交联共聚合成复合高吸水性树脂。通过吸水率、吸盐水率和保水率测定,表明引入膨润土增加其吸水性。

关键词：高吸水性聚丙烯酸钠复合材料吸水率保水率

Mechanobiomaterials: Harnessing mechanobiology principles for tissuerepair and regeneration

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Mechanobiology in Medicine 2024年第3期2卷 64-82页

作者： Xiao Lin Hua Yang Yi Xia Kang Wu Fengcheng Chu Huan Zhou Huajian Gao Lei Yang Orthopedic Institute Department of OrthopedicsThe First Affiliated HospitalSoochow UniversitySuzhouChina School of Mechanical Engineering Hebei University of TechnologyTianjinChina Center for Health Sciences and Engineering(CHSE) Hebei Key Laboratory of Biomaterials and Smart TheranosticsSchool of Health Sciences and Biomedical EngineeringHebei University of TechnologyTianjinChina Mechano-X Institute Applied Mechanics LaboratoryDepartment of Engineering MechanicsTsinghua UniversityBeijingChina

Mechanical stimuli are known to play critical roles in mediating tissue repair and regeneration. Recently, thisknowledge has led to a paradigm shift toward proactive programming of biological functionalities of biomaterialsby leveraging mechanics–geometry–biofunction relationships, which are beginning to shape the newly emergingfield of mechanobiomaterials. To profile this emerging field, this article aims to elucidate the fundamentalprinciples in modulating biological responses with material–tissue mechanical interactions, illustrate recentfindings on the relationships between material properties and biological responses, discuss the importance ofmathematical/physical models and numerical simulations in optimizing material properties and geometry, andoutline design strategies for mechanobiomaterials and their potential for tissue repair and regeneration. Giventhat the field of mechanobiomaterials is still in its infancy, this article also discusses open questions and challengesthat need to be addressed.

关键词： biomaterials geometry repair

黄豆的多孔结构及对亚甲基蓝染料的去除性能研究

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材料导报 2021年第S2期35卷 520-524+539页

作者：黄金花焦志伟陈先义赵小波姚英邦陶涛梁波鲁圣国广东工业大学材料与能源学院广东省智能材料和能量转化器件工程技术研究中心广东省功能软凝聚态物质重点实验室

黄豆是我国的原生植物,距今已有3 000年的历史,其对人体的药用价值也已被发现,但是对其结构的认识非常有限。通过对黄豆在一定温度下进行热处理,获得了多孔结构,并利用场发射扫描电子显微镜(FESEM)对多孔结构进行了表征,并对孔尺寸分布... 详细信息

黄豆是我国的原生植物,距今已有3 000年的历史,其对人体的药用价值也已被发现,但是对其结构的认识非常有限。通过对黄豆在一定温度下进行热处理,获得了多孔结构,并利用场发射扫描电子显微镜(FESEM)对多孔结构进行了表征,并对孔尺寸分布进行了统计分析。结果表明,所制得的多孔结构的平均孔径分布在(0.21±0.05)～(0.43±0.08)μm;经过与金属溶液等的对比实验,发现样品对亚甲基蓝染料水溶液具有吸附能力。此外,还研究了初始pH值和初始浓度对吸附的影响以及吸附的动力学过程、吸附等温线。观察到pH值在弱酸至碱性范围时样品的去除效果很好。实验表明吸附过程中在接触的最初15 min内该材料对染料的去除率在80%以上。此多孔材料对人类友好且方便易得、成本低廉,同时吸附速率快、吸附能力强,是一种非常有前景的环境净化材料。

关键词：黄豆多孔结构亚甲基蓝吸附性能动力学