Biochars with excellent Pb(II) adsorption property produced from fresh and dehydrated banana peels via hydrothermal carbonization
作者：
Zhou, Nan;Chen, Honggang;Xi, Junting;Yao, Denghui;Zhou, Zhi* ;...
期刊：
Bioresource Technology ,2017年232:204-210 ISSN：0960-8524
通讯作者：
Zhou, Zhi
作者机构：
[Chen, Honggang; Zhou, Nan; Zhou, Zhi; Yao, Denghui] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Xi, Junting] China Pharmaceut Univ, Sch Sci, Nanjing 211198, Jiangsu, Peoples R China.;[Tian, Yun; Lu, Xiangyang] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.;[Tian, Yun; Lu, Xiangyang] Hunan Agr Univ, Hunan Prov Univ Key Lab Agr Biochem & Biotransfor, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Zhou, Zhi] H;Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.
关键词：
Banana peel;Biochar;Hydrothermal carbonization;Lead removal
摘要：
Fresh and dehydrated banana peels were used as biomass feedstock to produce highly effective sorbent biochars through a facile one-step hydrothermal carbonization approach with 20%vol phosphoric acid as the reaction medium. The elemental ratio of oxygen content of the two as-prepared biochars were about 20%, and the FT-IR analysis confirmed the existence of abundant surface functional groups such as hydroxyl and carboxyl which greatly enhanced the adsorption performance. The sorbents showed excellent lead clarification capability of 359mg·g−1and 193mg·g−1for dehydrated and fresh banana peels based biochars, respectively. The change of the C[dbnd]O/O–C[dbnd]O and the appearance of Pb–O/Pb–O–C on the surface after adsorption confirmed that the ion exchange might be the dominant mechanism. The dehydration and pulverization pre-treatment and the addition of phosphoric acid can benefit the formation of those functional groups and hydrothermal carbonization can be a promising method to transfer biomass like fruit peels into biochars with excellent adsorption performance. © 2017 Elsevier Ltd
语种：
英文
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不同商品炭的表面性质对重金属离子的吸附性能的影响
作者：
刘梦;周南;邵灵;陈金璞;李辉勇;...
期刊：
广州化学 ,2017年42(6):1-7 ISSN：1009-220X
作者机构：
湖南农业大学理学院,湖南长沙,410128;湖南农业大学分析测试中心,湖南长沙,410128;[陈金璞; 周南; 邵灵; 李辉勇; 刘梦; 刘德明] 湖南农业大学
关键词：
商品炭;重金属污染;表面官能团;吸附性能
摘要：
采用多种商品炭如活性炭（CA）、煤粉（PC）、木质2.0生物炭（L2B）、椰壳生物炭（CSB）、稻壳生物炭（RHB）、硬炭毡（HCF）、软炭毡（SCF）、果壳生物炭（SB）等作为代表,通过各项表征手段检测不同商品炭的表面性质。利用扫描电镜（SEM）观察各商品炭的表面形貌,以傅里叶变换红外光谱（FT-IR）和Boehm滴定法分别定性和定量分析不同商品炭表面官能团的种类和数量,通过对商品炭的形貌结构、表面含有官能团和晶体结构的分析,发现商品炭对重金属离子吸附的主要影响因素是酸性表面官能团,而商品炭形貌及孔隙度影响较小。
语种：
中文
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High-performance LiTi2(PO4)3@carbon anode using double carbon sources for aqueous lithium ion battery
作者：
Zhou, Nan;Huang, Shengxiong;Hong, Tao;Luo, Wei;Tian, Yun;...
期刊：
Ceramics International ,2017年43(12):9327-9333 ISSN：0272-8842
通讯作者：
Zhou, Zhi
作者机构：
[Hong, Tao; Huang, Shengxiong; Luo, Wei; Zhou, Nan; Zhou, Zhi] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Tian, Yun; Lu, Xiangyang; Zhou, Nan; Zhou, Zhi] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.;[Tian, Yun; Lu, Xiangyang; Zhou, Nan; Zhou, Zhi] Hunan Agr Univ, Hunan Prov Univ Key Lab Agr Biochem & Biotransfor, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Zhou, Zhi] H;Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.
关键词：
Anode;Aqueous lithium ion battery;Composite;Double carbon sources;LiTi 2 (PO 4 ) 3
摘要：
In this paper, LiTi<inf>2</inf>(PO<inf>4</inf>)<inf>3</inf>@carbon composite as anode for aqueous lithium ion battery has been successfully synthesized by in-situ carbon coating method using oxalic acid and glucose as double carbon sources. XRD results confirm the rhombohedral NASICON-type LiTi<inf>2</inf>(PO<inf>4</inf>)<inf>3</inf>structure of the as-prepared composite. The LiTi<inf>2</inf>(PO<inf>4</inf>)<inf>3</inf>@carbon composite using double carbon sources (LTP-OG-10) disperses well, and the coated carbon layer has the appropriate thickness of 3–7 nm, which result in proper balance of the good electrical conductivity and the fast kinetics of diffusion of lithium ions. LTP-OG-10 exhibits better electrochemical performance compared with those using oxalic acid (LTP-O) or glucose (LTP-G) single carbon source. LTP-OG-10 anode delivers the discharge capacity of 112.5 mA h g<sup>−1</sup>, 96.8 mA h g<sup>−1</sup>, and 54.2 mA h g<sup>−1</sup>at 0.2 C, 5 C and 20 C, respectively, much larger than that of LTP-O and LTP-G. Moreover, LTP-OG-10 demonstrated excellent cycling performance, with the capacity retention of 71.1% after 400 cycles at 0.2 C, 22.9% higher than that of LTP-G. The good electrochemical properties of LTP-OG-10 is mainly ascribed to the increase of defects, high-quality and appropriate thickness of carbon layer. Our study reveals that preparing LiTi<inf>2</inf>(PO<inf>4</inf>)<inf>3</inf>@carbon composite using double carbon sources is an efficient approach to enhance its electrochemical properties. ©2017 Elsevier Ltd and Techna Group S.r.l.
语种：
英文
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加强农业院校《文献检索》课程的几点建议
作者：
周智;周南;王锦;李辉勇;曾奎
期刊：
化工时刊 ,2016年30(4):53-55 ISSN：1002-154X
作者机构：
湖南农业大学理学院应用化学系,湖南 长沙,410128;[周南; 周智; 曾奎; 王锦; 李辉勇] 湖南农业大学
关键词：
文献检索;化学文献;科研能力;教学改革
摘要：
化学文献是化学学科前沿研究动态的集中体现,通过查阅化学文献可以提高农业院校学生的科研动手能力,激发学习兴趣。结合《文献检索》课程教学经验,对于该课程改革提出:精化理论教学,调整教学重点;设置实践环节,加强能力培养;结合专业英语教学,引入检索软件的教学方法和理念,取得比较好的教学效果。
语种：
中文
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深化改革毕业设计环节以开拓创新思维
作者：
周南;周智
期刊：
科技创新导报 ,2016年(15):153-155 ISSN：1674-098X
作者机构：
湖南农业大学理学院 湖南长沙 410128;[周智; 周南] 湖南农业大学
关键词：
本科;毕业设计;创新思维;改革
摘要：
毕业设计是对本科生大学4年综合技能的全面培养与全方位考核,是本科生在大学生涯中展示各项综合知识、提高各方面综合技能的唯一一次机会,意义重大。近年来毕业设计环节的现状不容乐观,问题重重,有来自于学校、教师以及学生本人的原因,其改革更是势在必行。该文针对此现象提出一些建设性改革方式,以提高毕业论文质量。
语种：
中文
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Performance improvement by alumina coatings on Y3Al5O12:Ce3+ phosphor powder deposited using atomic layer deposition in a fluidized bed reactor
作者：
Zhou, Zhi;Zhou, Nan* ;Lu, Xiangyang* ;ten Kate, Melvin;Valdesueiro, David;...
期刊：
RSC Advances ,2016年6(80):76454-76462 ISSN：2046-2069
通讯作者：
Zhou, Nan;Lu, Xiangyang
作者机构：
[Zhou, Zhi; Zhou, Nan] Hunan Agr Univ, Sci Coll, Changsha 410128, Hunan, Peoples R China.;[Lu, Xiangyang] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.;[van Ommen, J. Ruud; ten Kate, Melvin] Delft Univ Technol, Dept Chem Engn, Van der Maasweg 9, NL-2629 HZ Delft, Netherlands.;[Valdesueiro, David; Hintzen, H. T. (Bert)] Delft Univ Technol, Grp Luminescent Mat, Sect Fundamental Aspects Mat & Energy, Fac Appl Sci, Delft, Netherlands.
通讯机构：
[Zhou, Nan; Lu, Xiangyang] H;Hunan Agr Univ, Sci Coll, Changsha 410128, Hunan, Peoples R China.;Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.
摘要：
To improve the thermal stability, Al2O3 has been successfully coated on a Y3Al5O12:Ce3+ (YAG:Ce) phosphor powder host by using the Atomic Layer Deposition (ALD) approach in a fluidized bed reactor. Transmission Electron Microscopy (TEM) and Energy Dispersive X-ray spectroscopy (EDX) analysis indicate that coating an Al2O3 thin layer by ALD is highly feasible. The luminescence properties (such as excitation and emission as well as quantum efficiency and UV-absorption of the coated YAG:Ce phosphor) were systematically analysed, with the further examination of the thermal resistance characteristics. The Al2O3 thin layer coating with precisely controlled thickness by ALD can obviously improve the luminescence intensity and greatly enhances the thermal stability of the YAG:Ce phosphor. It is suggested that the alumina coating with tailoring thickness seems not only to act like a barrier to decrease the thermal quenching, but also as a great help to promote the light absorption and transfer.
语种：
英文
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学术冬令营-本科生科研动手能力培养和人才选拔的新模式探索
作者：
周智;周南;王锦;杨建奎;李辉勇
期刊：
化工时刊 ,2016年30(5):47-49 ISSN：1002-154X
作者机构：
湖南农业大学理学院应用化学系,湖南 长沙,410128;[杨建奎; 周南; 周智; 王锦; 李辉勇] 湖南农业大学
关键词：
冬令营;大学生;科创能力
摘要：
基础课学习阶段的大学生在科创过程中，存在意思欠缺，能力不足等问题。为了培养大学生的科创能力，以湖南农业大学本科学生为对象，开展了第一届冬令营的科研能力培养教学研究。此次冬令营，通过建立学习小组，利用计算机辅助教学，引入竞赛激励机制与提问环节，创建科学创新团队等方法，培养大学生的科研兴趣，提升大学生的科研创新精神与动手能力。
语种：
中文
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独立学院有机化学课堂教学改革的探讨
作者：
王锦;喻鹏;周南;周智
期刊：
化工时刊 ,2016年30(1):41-43 ISSN：1002-154X
作者机构：
湖南农业大学理学院化学系,湖南长沙,410128;[周智; 周南; 王锦; 喻鹏] 湖南农业大学
关键词：
独立学院;有机化学;课堂教学;教学改革
摘要：
针对于独立学院学生的特征,结合有机化学课程的特点,从精心设计导入新课、遵循规律层次推进、引导学生总结归纳、教学方法和教学手段多样化四个方面进行了课堂教学改革探讨,贯穿了"教师为主导,学生为主体"的教学理念,显著地提高了教学质量与教学效果,让学生感悟到化学的魅力,取得好的教学效果。
语种：
中文
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不同光照条件对茄果类蔬菜幼苗生长发育的影响
作者：
龚婷;黄升雄;罗伟;周智;周南;...
期刊：
农业工程技术 ,2016年(31):35-41 ISSN：1673-5404
作者机构：
湖南农业大学理学院湖南农业大学植物光学实验室;[罗伟; 周南; 周智; 龚婷; 刘晓颖; 黄升雄; 黄浩; 盖淑杰] 湖南农业大学
关键词：
蔬菜幼苗;茄果类;光照处理;幼苗叶;番茄幼苗;气孔导度;辣椒幼苗;光质;补光;光合参数
摘要：
以荧光灯和自然光为对照组,分别选用4种不同的LED光谱用于辣椒、番茄和茄子的育苗补光试验。育苗完成后测定不同茄果类蔬菜幼苗的生长指标及光合特性。结果表明:经适当光质的LED植物生长灯进行补光后,辣椒、番茄和茄子幼苗的株高、根长、茎粗、叶面积和整个幼苗的鲜质量、干质量均有明显的增长,辣椒、番茄和茄子幼苗叶中的可溶性糖、类胡萝卜素及含氮量均有不同幅度的提高;辣椒、番茄和茄子幼苗的光合能力增强,气孔导度、胞间CO2浓度有一定程度的升高,蒸腾速率加快。LED补光使幼苗的品质得到了提高,其中以处理组3的LED灯最佳。
语种：
中文
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科技论文写作授课方式的初步探索
作者：
周智;周南
期刊：
化工时刊 ,2016年30(9):54-55 ISSN：1002-154X
作者机构：
湖南农业大学理学院应用化学系,长沙,410128;[周南; 周智] 湖南农业大学
关键词：
科技论文;大学生;科研兴趣
摘要：
科技论文的撰写是科研必需的一个环节,而科技论文如何进行撰写不仅是对于研究生等学历层次较高的研究人员要求,对于高校的在校大学生来说,掌握如何去撰写一篇科技论文也是必要的基本素质。以湖南农业大学为例,针对在校大学生在科技论文的撰写方面存在明显不足的问题,以一种新颖的授课方式,结合学生自身参加的科研活动,以及学校现有的文献资料,发掘学生的探究兴趣,制造良好的学术探讨氛围,提高大学生对于科研的兴趣,以此来提高大学生的科技论文写作能力。
语种：
中文
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初教基础化学实验课的实践与体会
作者：
周智;周南;曾盔
期刊：
化工时刊 ,2016年30(1):47-49 ISSN：1002-154X
作者机构：
湖南农业大学理学院应用化学系,湖南长沙,410128;[曾盔; 周南; 周智] 湖南农业大学
关键词：
年轻教师;基础化学实验;实验教学;教学实践
摘要：
大学教育质量取决于教师的教育教学水平,年轻化学教师如何过好基础化学实验教学关?作者从虚心学习、认真备课、讲解与指导、教学育人、结合科研诸方面介绍了初教基础化学实验课的实践、效果与体会,以期与同行交流互鉴。
语种：
中文
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Research progress and application prospects of transition metal Mn4+-activated luminescent materials
作者：
Zhou, Zhi;Zhou, Nan* ;Xia, Mao;Yokoyama, Meiso;Hintzen, H. T. (Bert)
期刊：
Journal of Materials Chemistry C ,2016年4(39):9143-9161 ISSN：2050-7526
通讯作者：
Zhou, Nan
作者机构：
[Xia, Mao; Zhou, Zhi; Zhou, Nan] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Yokoyama, Meiso] I Shou Univ, Dept Elect Engn, Kaohsing City 84001, Peoples R China.;[Hintzen, H. T. (Bert)] Delft Univ Technol, Fac Sci Appl, Grp Luminescent Mat, Sect Fundamental Aspects Mat & Energy, NL-2600 AA Delft, Netherlands.
通讯机构：
[Zhou, Nan] H;Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.
摘要：
Phosphor converted white light-emitting diodes (pc-WLEDs) are an alternative choice for general lighting due to their superior features such as high efficiency, durability and reliability. However, most pc-WLEDs in the market suffer from problems resulting from the lack of red emission, which can be resolved by adding red-emitting phosphors. The currently dominant red-emitting phosphors are Eu2+-doped nitrides, but the requirement of elevated temperature during synthesis makes them costly, and moreover the over broad emission may result in loss of lumen efficiency. Recently, transition metal Mn4+ doped materials showing very narrow red emission have attracted tremendous interest for compositions based on abundant resources and mild production processes, resulting in a highly efficient way to obtain phosphors with favorable luminescence properties. In this work, we describe the recent progress on transition metal Mn4+-doped inorganic luminescent materials, including oxides (subdivision into alkaline-earth germanates, arsenates, aluminates, titanates, pyrosilicates, phosphates, zirconates, gallates, simple oxides and others), fluorides and nitrides. More specifically, the review focuses on Mn4+ activated red-emitting phosphors that can be effectively excited by NUV and blue LED chips. The excitation and emission spectra as well as the preparation process of some representative phosphors are given and discussed. Meanwhile, the merits and drawbacks of several kinds of matrix materials in applications for white LEDs, as well as some problems, development trends and application prospects in this field of Mn4+ doped phosphors are summarized.
语种：
英文
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农业性院校本科生《文献检索》课程实践改革初探
作者：
周智;周南;李辉勇;王锦;杨建奎
期刊：
科技创新导报 ,2016年(4):128-129+131 ISSN：1674-098X
作者机构：
湖南农业大学理学院应用化学系 海南长沙 410128;[杨建奎; 周南; 周智; 王锦; 李辉勇] 湖南农业大学
关键词：
文献检索;化学文献;学生实践;教学改革
摘要：
文献是学科前沿研究动态的集中体现,要提升学生的科研创新能力必须掌握文献查阅技能。结合《文献检索》课程教学经验,提出对于该课程应加强实践改革,并从自身经验与体会出发开展了初步试验探索。初探内容包括：从大学生创新项目申报的角度树立文献查阅的目标,激发学生的学习兴趣,采用＂现学现用、活学活用＂模式保障实践跟上理论,利用投影仪、画板展示等手段提高学生的主动性和积极性,引入研讨会和竞赛机制进一步巩固知识。试验证明,加强实践环节有利于促进学生对文献检索知识与技能的掌握,值得在农业性院校的本科教学中推广。
语种：
中文
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Diiodocarbene Modified Graphene: Preparation, Characterization and Its Application as a Novel Adsorbent for Aqueous Removal of Pb(II)
作者：
Li, Hui-Yong;Yue, Bao-Yu;Yu, Jin-Gang* ;Wu, Xiong-Wei;Zhou, Wen-Xin;...
期刊：
Nanoscience and Nanotechnology Letters ,2016年8(5):387-392 ISSN：1941-4900
通讯作者：
Yu, Jin-Gang;Teng, Jie;Zhong, Ming
作者机构：
[Zhou, Wen-Xin; Wu, Xiong-Wei; Li, Hui-Yong; Yu, Jin-Gang; Zhou, Nan] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Yue, Bao-Yu; Yu, Jin-Gang] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China.;[Teng, Jie] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China.;[Zhong, Ming] Hunan Inst Sci & Technol, Sch Chem & Chem Engn, Yueyang 414006, Hunan, Peoples R China.
通讯机构：
[Yu, Jin-Gang; Teng, Jie; Zhong, Ming] H;[Yu, Jin-Gang] C;Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China.;Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China.
关键词：
Adsorption;Characterization;Diiodocarbene;Graphene Nanosheets;Pb(II)
摘要：
The diiodocarbenemodified graphene nanosheets (Gr-CI<inf>2</inf>were successfully synthesized. The generation of diiodocarbene was carried out by reaction of aqueous sodium hydroxide with iodoform. The functionalization was carried out in the presence of hexadecyl trimethyl ammonium bromide as the phase transfer catalyst. To determine the morphology and elemental composition of the product, the obtained composite was fully characterized using Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy, high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray (EDX) spectroscopy and X-ray photoelectron spectroscopy (XPS). The degree of grafted iodine reached up to 33 wt%, and the morphology of the functionalized graphene remained largely unchanged, indicating that the modification was successfully realized. The adsorption of Pb(II) from aqueous solutions using Gr-CI<inf>2</inf>composite were systematically studied. And Langmuir isotherm was found to better fit the equilibrium data. Due to its high adsorption capacities for Pb(II) and the feasible preparation procedure, Gr-CI<inf>2</inf>composite would find its potential application in wastewater treatment. Copyright ©2016 American Scientific Publishers All rights reserved.
语种：
英文
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Synergistically enhanced oxygen reduction activity of MnOx-CeO2/Ketjenblack composites
作者：
Chen, Jiajie* ;Zhou, Nan;Wang, Haiyan;Peng, Zhiguang;Li, Huiyong;...
期刊：
Chemical Communications ,2015年51(50):10123-10126 ISSN：1359-7345
通讯作者：
Chen, Jiajie
作者机构：
[Liu, Kun; Wang, Haiyan; Peng, Zhiguang; Chen, Jiajie; Tang, Yougen] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China.;[Zhou, Nan; Li, Huiyong] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Wang, Haiyan] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China.
通讯机构：
[Chen, Jiajie] C;Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China.
摘要：
Here we report a hybrid of MnOx-CeO2/Ketjenblack as a novel catalyst for oxygen reduction reaction (ORR) by a facile strategy. This hybrid exhibits comparable activity and better stability towards ORR than the commercial 20 wt% Pt/C due to the synergistic effect. © The Royal Society of Chemistry 2015.
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英文
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Three-dimensional MnCo2 O4.5 mesoporous networks as an electrocatalyst for oxygen reduction reaction
作者：
Li, Jingsha* ;Zhou, Nan;Wang, Haiyan;Li, Huiyong;Xie, Zhiyong;...
期刊：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY ,2015年162(12):A2302-A2307 ISSN：0013-4651
通讯作者：
Li, Jingsha
作者机构：
[Wang, Haiyan; Peng, Zhiguang; Li, Jingsha; Tang, Yougen] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China.;[Zhou, Nan; Li, Huiyong] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Wang, Haiyan; Xie, Zhiyong] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China.;[Sun, Lixian; Chu, Hailiang] Guilin Univ Elect Technol, Guangxi Key Lab Informat Mat, Guilin 541004, Peoples R China.
通讯机构：
[Li, Jingsha] C;Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China.
摘要：
Developing highly active non-precious catalysts is still a great challenge for metal-air batteries. Herein, three-dimensional (3D) mesoporous MnCo<inf>2</inf>O<inf>4.5</inf>nanoflakes were fabricated via a facile two-step approach and proposed as a novel electrocatalyst for oxygen reduction reaction (ORR) for the first time. The as-prepared samples were well characterized by a combination of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and nitrogen absorption experiments. TheMnCo<inf>2</inf>O<inf>4.5</inf>nanoflakes have a relatively large surface area of 28 m<sup>2</sup>/g resulting from its 3D mesoporous networks. The electrocatalytic activity toward ORR was evaluated by linear sweep voltammetry tests, which indicated higher reduction current densities compared with Mn<inf>3</inf>O<inf>4</inf>and Co<inf>3</inf>O<inf>4</inf>. It even outperformed the commercial carbon-supported Pt (5 wt%). The MnCo<inf>2</inf>O<inf>4.5</inf>with unique morphology here can be used as an efficient catalyst for metal/air batteries. ©2015 The Electrochemical Society.
语种：
英文
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明胶及其在智能型药物载体中的应用
作者：
李辉勇;王天帅;周南
期刊：
明胶科学与技术 ,2014年34(2):95-104 ISSN：1004-9657
作者机构：
湖南农业大学理学院化学系,湖南长沙,410128;[周南; 李辉勇; 王天帅] 湖南农业大学
关键词：
明胶;微囊;微球;纳米颗粒;水凝胶;智能载体;应用
摘要：
智能高分子材料在生物医学、化记忆元件开关、传学转换器、感器、人造肌肉、化学存储器、分子分离体系、活性酶的固定、组织工程、化学化工等方面得到了广泛的应用,尤其在智能给药系统中备受关注.明胶作为胶原的解旋产物,具有优良的生物相容性、可生物降解性、来源丰富、制备简单等一系列优点,被广泛用于智能型药物载体的制备、研究与应用中.本文主要阐述了明胶极其特性,对明胶基智能型药物载体如明胶微囊/微球、明胶纳米颗粒以及明胶基智能型水凝胶等的制备、性质和应用做了简要的介绍,并指出了明胶药物载体在未来的发展前景以及需要解决的问题.
语种：
中文
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Nickel cobalt oxide/carbon nanotubes hybrid as a high-performance electrocatalyst for metal/air battery
作者：
Zhang, Hui;Qiao, Hang;Wang, Haiyan* ;Zhou, Nan;Chen, Jiajie;...
期刊：
Nanoscale ,2014年6(17):10235-10242 ISSN：2040-3364
通讯作者：
Wang, Haiyan
作者机构：
[Zhang, Hui; Qiao, Hang; Wang, Haiyan; Li, Jingsha; Chen, Jiajie; Tang, Yougen] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China.;[Zhou, Nan] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Huang, Chenghuan] Hunan Changyuan Lico Co Ltd, Changsha 410205, Hunan, Peoples R China.
通讯机构：
[Wang, Haiyan] C;Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China.
摘要：
High-performance, low cost catalyst for oxygen reduction reaction (ORR) remains a big challenge. Herein, nanostructured NiCo2O4/CNTs hybrid was proposed as a high-performance catalyst for metal/air battery for the first time. The well-formed NiCo2O4/CNTs hybrid was studied by steady-state linear polarization curves and galvanostatic discharge curves in comparison with CNTs-free NiCo2O4 and commercial carbon-supported Pt. Because of the synergistic effect, NiCo2O4/CNTs hybrid exhibited significant improvement of catalytic performance in comparison with NiCo2O4 or CNTs alone, even outperforming Pt/C hybrid in ORR process. In addition, the benefits of Ni incorporation were demonstrated by the improved catalytic performance of NiCo2O4/CNTs compared to Co3O4/CNTs, which should be attributed to improved electrical conductivity and new, highly efficient, active sites created by Ni cation incorporation into the spinel structure. NiCo2O4/CNTs hybrid could be used as a promising catalyst for high power metal/air battery.
语种：
英文
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Additive-free solvothermal synthesis of hierarchical flower-like LiFePO4/C mesocrystal and its electrochemical performance
作者：
Zhou, Nan;Uchaker, Evan;Wang, Hai-Yan;Zhang, Ming;Liu, Su-Qin;...
期刊：
RSC Advances ,2013年3(42):19366-19374 ISSN：2046-2069
通讯作者：
Li, Huiyong
作者机构：
[Wu, Xiongwei; Zhou, Nan; Li, Huiyong] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Cao, Guozhong; Uchaker, Evan; Zhou, Nan; Zhang, Ming] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA.;[Wang, Hai-Yan; Liu, Su-Qin; Liu, You-Nian; Zhou, Nan] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China.
通讯机构：
[Li, Huiyong] H;Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.
摘要：
Three dimensional hierarchical flower-like lithium iron phosphate (LiFePO<inf>4</inf>) mesocrystals were successfully synthesized via a solvothermal approach with the utilization of a mixture of water/ethylene glycol/dimethylacetamide (H<inf>2</inf>O/EG/DMAC) as co-solvent. No other surfactant or template agent was used and beautiful micro-sized LiFePO <inf>4</inf> mesoporous structures with a special rose-like morphology were obtained. The hierarchical LiFePO<inf>4</inf> mesocrystals were assembled by well crystallized nano-sized LiFePO<inf>4</inf> thin plates with a thickness around 100 nm. The characteristics and electrochemical dynamics as well as performance of the obtained hierarchical flower-like LiFePO<inf>4</inf> mesocrystals were carefully investigated. The flower-like hierarchical LiFePO<inf>4</inf> mesocrystals showed a high initial lithium intercalation capability of 147 mA h g<sup>-1</sup> at a current density of 17 mA g <sup>-1</sup> (0.1 C), which should be attributed to the high specific surface area resulting from the mesoporous superstructure and well crystallized LiFePO<inf>4</inf> nano-plate composition units. Polyvinylpyrrolidone (PVP) was introduced during the solvothermal synthesis as an in situ carbon coating source. The obtained flower-like C-coated LiFePO<inf>4</inf> mesocrystals exhibited even better initial lithium intercalation capability of 161 mA h g<sup>-1</sup> at 0.1 C and showed improved lithium storage performance at high rates as well as good cyclic stability. ©2013 The Royal Society of Chemistry.
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英文
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