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| 1 | A brief review of graphene-based material synthesis and its application in environmental pollution management显示文摘Graphene is an interesting two-dimensional carbon allotrope that has attracted considerable research interest because of its unique structure and physicochemical properties. Studies have been conducted on graphene-based nanomaterials including modified graphene, graphene/semiconductor hybrids, graphene/metal nanoparticle composites, and graphene-complex oxide composites. These nanomaterials inherit the unique properties of graphene, and the addition of functional groups or the nanoparticle composites on their surfaces improves their performance. Applications of these materials in pollutant removal and environmental remediation have been explored. From the viewpoint of environmental chemistry and materials, this paper reviews recent important advances in synthesis of graphene-related materials and their application in treatment of environmental pollution. The roles of graphene-based materials in pollutant removal and potential research are discussed. | LU Kui ZHAO GuiXia WANG XiangKe | 2012 | Chinese Science Bulletin2012,57,11: | 24 |
| 2 | 石墨烯制备新技术及其在燃料电池催化剂中的应用显示文摘石墨烯作为碳纳米材料的新成员,具有众多优异的物理和化学特性,在电子信息、储能、生物医药、超级电容等领域有着巨大的应用前景。近年来,石墨烯材料制备方法研究方面取得了长足的发展,出现了一些有价值的新型制备技术。鉴于其巨大的理论比表面、超高的电子迁移速率、稳定的电化学活性等特点,在燃料电池领域的应用受到了极大的关注。本文首先在概述石墨烯的总体特征的基础上,详细介绍了石墨烯新型的制备技术,主要包括微波法、电化学法等,这些技术具有制得的石墨烯性能好、操作简便、绿色环保等重要优点。然后阐述了石墨烯在燃料电池中的应用进展。最后,我们对石墨烯制备新技术及其在燃料电池催化剂中的应用的发展趋势作了展望。 | 谭习有 黎华玲 彭洪亮 钟轶良 廖世军 | 2013 | 化工进展2013,32,S1: | 9 |
| 3 | M-N-C阴极催化剂的制备及其在微生物燃料电池中的应用显示文摘以聚苯胺和硝酸盐为前驱体,采用热处理法制备了M-N-C(M=Fe,Co)材料,并将其作为厌氧流化床微生物燃料电池(AFBMFC)阴极催化剂。通过X射线衍射(XRD)、红外光谱(FTIR)、扫描电子显微镜(SEM)对催化剂进行晶型结构和表面形貌的表征。采用循环伏安法(CV)对催化剂的电化学性能进行考察,并应用于AFBMFC,考察了其对电池产电性能的影响。结果表明,使用Fe-N-C催化剂的微生物燃料电池稳定运行时,开路电压达到636.0 mV,功率密度达到166.82 mW·m-2,比使用Pt/C催化剂的微生物燃料电池的功率密度提高10%。表明Fe-N-C催化剂用做微生物燃料电池阴极催化剂具有潜在的应用前景。 | 白立俊 王许云 何海波 郭庆杰 | 2014 | 化工学报2014,65,4: | 9 |
| 4 | Template-directed fabrication of 3D graphene-based composite and their electrochemical energy-related applications显示文摘Graphene shows great potentials in electrochemical energy-related areas.To enhance its properties and corresponding electrochemical performance,recently,three-dimensional(3D)graphene-based materials especially monolithic porous graphene with encapsulated functional nanomaterials have arisen much research interest for electrochemical catalysis,lithium ion batteries(LIBs),lithium–sulfur batteries,supercapacitors,etc.With the enhanced structure properties such as interconnected graphene network,high volume-specific surface area and electronic conductivity,3D monolithic graphene is more suitable for the fabrication of composite electrode materials in real devices.In this article,we discuss recent development in fabricating monolithic 3D graphene and their composites using template-directed methods and their applications in electrochemical energy-related areas. | Hua-Jun Qiu Li Liu Yu Wang | 2016 | Science Bulletin2016,61,6: | 8 |
| 5 | Nitrogen-doped graphene nanosheets as high efficient catalysts for oxygen reduction reaction显示文摘It is of great significance in exploring alternative catalysts to platinum (Pt)-based materials for oxygen reduction reaction (ORR),because this reaction is invariably involved in various fuel cells and metal-air batteries.We herein reported the nitrogen doped graphene nanosheets (NGNSs) with pore volume of as high as 3.42 m 3 /g and investigated their potential application as ORR catalysts,it was demonstrated the NGNSs featured high activity,improved kinetics and excellent long-term stability for ORR.The NGNSs were successfully used as cathode catalysts of microbial fuel cells (MFCs) and performed even better than the commercial Pt/C (Pt 10%) catalysts at the maximum power output. | CI SuQin WU YongMin ZOU JianPing TANG LongHua LUO ShengLian LI JingHong WEN ZhenHai | 2012 | Chinese Science Bulletin2012,57,23: | 7 |
| 6 | Unique synthesis of graphene-based materials for clean energy and biological sensing applications显示文摘Graphene has unique physical properties,and a variety of proof-of-concept devices based on graphene have been demonstated.A prerequisite for the application of graphene is its production in a controlled manner because the number of graphene layers and the defects in these layers significantly influence transport properties.In this paper,we briefly review our recent work on the controlled synthesis of graphene and graphene-based composites,the development of methods to characterize graphene layers,and the use of graphene in clean energy applications and for rapid DNA sequencing.For example,we have used Auger electron spectroscopy to characterize the number and structure of graphene layers,produced single-layer graphene over a whole Ni film substrate,synthesized well-dispersed reduced graphene oxide that was uniformly grafted with unique gold nanodots,and fabricated graphene nanoscrolls.We have also explored applications of graphene in organic solar cells and direct,ultrafast DNA sequencing.Finally,we address the challenges that graphene still face in its synthesis and clean energy and biological sensing applications. | XUMingSheng GAO Yan YANG Xi CHEN HongZheng | 2012 | Chinese Science Bulletin2012,57,23: | 6 |
| 7 | 百香果内膜生物炭作为微生物燃料电池阴极催化剂的产电性能研究显示文摘以天然来源的生物质百香果内膜为原料,采用热解炭化-KOH活化的方法制备出比表面积大、孔隙结构好的纳米片生物炭(BXG-AC),并通过扫描电子显微镜(SEM)、X射线光电子能谱(XPS)等方法对所制备催化剂进行了元素组成和微观形貌表征,采用循环伏安扫描(CV)和线性伏安扫描(LSV)对材料的电化学性能进行分析。结果表明,百香果内膜生物炭经过KOH活化后,在0.1 mol/L的磷酸缓冲液(PBS)中表现出良好的电催化活性。将所制备的催化剂应用于单室MFCs阴极时,对应的MFC最大功率密度达1153.3 mW/m^2,略低于Pt/C的1214.3 mW/m^2,且此MFC运行60 d后,其性能未见明显降低。表明BXG-AC催化剂具有显著的催化活性和稳定性,为开发高效MFC阴极催化剂提供了新途径。 | 邓丽芳 董格 蔡茜茜 唐家桓 袁浩然 | 2018 | 燃料化学学报2018,46,1: | 4 |
| 8 | Metal-free, carbon-based catalysts for oxygen reduction reactions显示文摘开发没有金属的、基于碳的催化剂为氧减小反应(ORR ) 代替基于铂的催化剂是研究的一个新兴的区域。在最近的年里,包括碳的不同的碳结构与 IIIA-VIIA heteroatoms 做了(厘米基于地点,在 M 代表做的 heteroatom 的地方) 并且在碳 nanotubes (CNT ) 包含的 polynitrogen (PN ) 混合物(NN 基于地点) 被综合了。比作金属性的催化剂,这些材料高度活跃、稳定、便宜、环境地友好。这评论讨论 heteroatoms 的加入怎么提高 ORR 活动的这些材料,他们的 ORR 表演和机制的发展。为定制碳底层的结构改进 ORR 性能的策略也被讨论。在这个区域的未来研究将需要包括优化合成策略控制合并 heteroatoms 的类型,数量和分发,以及更好在这些催化剂理解 ORR 机制。 | Zhiyi Wu Zafar Iqbal Xianqin Wang | 2015 | Frontiers of Chemical Science and Engineering2015,9,3: | 4 |
| 9 | Fabrication of carbon nanotube/graphene core/shell nanostructures on SiO_2 substrates using organic solvents:A molecular dynamics study显示文摘Using molecular mechanics and molecular dynamics simulations,we demonstrate that it is difficult to fabricate single-walled carbon nanotube (SWNT)/carbon nanoscroll (CNS) core/shell nanostructures on solid substrates because of the strong interaction between the graphene (GN) and the substrate.We propose an effective way to reduce the interaction between the GN and the substrate;SWNT/CNS core/shell nanostructures can be fabricated easily on SiO2 substrates by exploiting the volatilization of organic solvents,and inducement with SWNTs.These SWNT/CNS core/shell nanostructures on SiO2 substrates have the potential to be applied in telecom network transmission,or as electronic components in apparatuses such as microcircuit interconnects,nanoelectronics devices,heterojunctions,or sensors. | LING CuiCui XUE QingZhong JING NuanNuan | 2012 | Chinese Science Bulletin2012,57,23: | 2 |
| 10 | 阴离子膜燃料电池碳基氧还原催化剂研究进展显示文摘对阴离子膜燃料电池中碳基氧还原催化剂的研究进展进行详细评述,分析杂原子掺杂碳基催化剂在阴离子膜燃料电池上应用的可行性.在此基础上,提出杂原子掺杂的多孔纳米碳材料是阴离子膜燃料电池阴极催化剂今后的重要发展方向. | 孙天航 王晓晔 黄乃宝 梁成浩 | 2016 | 大连海事大学学报2016,42,3: | 1 |
| 11 | The structural changes of blood pyropolymers and their beneficial electrocatalytic activity toward oxygen reduction显示文摘There is a growing interest in designing more effective fuel cell cathode catalyst precursors.Here the partial pyrolysis of animal bloods has been used to produce the blood pyropolymers,which are an intermediate substance between a polymer and carbonaceous material.These pyropolymers were yielded by carbonization process below 600°C.The structural changes in the pyropolymers were characterized by X-ray diffraction,and their formation was checked by micro-IR spectra,thermogravimetric and differential thermal analysis.Their potential electrocatalytic properties were evaluated using the linear sweep voltammetry in the O2-saturated KOH solution.It is found that the process of pyropolymer formation began about 200°C and completed around500°C.The change of particle phase depends on the formation of the pyropolymers,but has no effect to their internal carbon structures which are controlled by pyrolysis process only.Meanwhile,it is confirmed that the crystalline phases in the pyropolymers can exist at the surface of heat-treated materials.It can be also found that the carbon materials are active toward oxygen reduction and their activity is associated with the carbonization level.Our study will stimulate the designers to design the highly active catalysts by using native blood pyropolymers as the precursors. | GUO ChaoZhong CHEN ChangGuo LUO ZhongLi | 2013 | Chinese Science Bulletin2013,58,30: | 1 |