直面低碳才能赢得陶瓷业的未来

进入新年,有人预测,2010年是陶瓷业从＂被环保＂走向自觉环保的元年。在节约资源、节约能源、环境保护已成为全球的大趋势下,陶瓷业面临着前所未有的大挑战和大机遇。陶瓷行业只有直面低碳时代,以积极而果敢的姿态迎接这个时代的到来,才能把握先机,赢得光明的未来。     

低碳经济时代陶瓷行业的新课题

世界已进入了低碳经济时代,对于高能耗、二氧化碳排放量较大的陶瓷行业来说,实现节能减排和清洁生产、开发能耗低的薄型瓷砖、实行低碳认证等已成为低碳经济时代发展的新课题。     

陶瓷业首个院士工作站落户佛山

国内陶瓷行业首个院士工作站正式落户佛山,11个课题吸引11位国家级专家率上百人团队加入。近几年,佛山陶瓷在推进产业升级进程中,节能、环保、功能化等新型建材领域成为佛山龙头陶企进军的热点。国家强调的节能减排要真正转换成现实,单靠企业本身是不够的     

关于开展“化工行业节能减排、清洁生产及低碳经济”论文征集的通知

各有关单位:当前全球能源短缺,气候变暖,环境保护形势日益严峻。在全球气候变化的大背景下,节能、安全、环保以及发展低碳经济正成为各级部门决策者的共识。化工行业作为国民经济的支柱产业,其对     

关于开展“化工行业节能减排、清洁生产及低碳经济”论文征集的通知

各有关单位:当前全球能源短缺,气候变暖,环境保护形势日益严峻。在全球气候变化的大背景下,节能、安全、环保以及发展低碳经济正成为各级部门决策者的共识。化工行业作为国民经济的支柱产业,其对     

“低碳经济”与三E理念

<正>抑制全球气候变暖、减少温室气体二氧化碳排放为目标的全球行动,以哥本哈根世界应对气候变暖的联合国大会为里程碑,已经成为世界紧迫和统一的     

陶瓷行业如何应对低碳经济时代的来临

主要介绍了低碳及低碳经济的概念、低碳经济提出的背景及陶瓷工业的现状,综述了低碳经济条件下陶瓷行业所面临的挑战,详细论述了陶瓷行业在低碳经济条件下的发展策略及发展途径。     

低碳经济与陶瓷生产

随着人类社会的不断进步、世界经济的迅猛发展,全球气候变暖也已成为全世界面临的最为严峻的问题之一。陶瓷属于高污染、高能耗行业,而我国又是陶瓷生产大国,本文旨在低碳经济大背景之下,对陶瓷产业的健康快速发展作一简单分析。     

低碳时代：石油石化大有可为

在全球气候变暖对人类生存和发展带来严峻挑战的背景之下,发展低能耗、低污染为基础的“低碳经济”成为全球关注的焦点。如今,欧美发达国家正在大力推进以高能效、低排放为核心的“低碳革命”,着力发展“低碳技术”,以抢占产业制高点。低碳经济的争夺战,已在全球悄然打响。     

低碳经济时代炭素制品工业的发展机遇

1 何谓低碳经济 低碳经济是以低能耗、低污染、低排放为基础的经济模式,是人类社会继农业文明、工业文明之后的又一次重大进步.低碳经济实质是能源高效利用、清洁能源开发、追求绿色GDP的问题,核心是能源技术和减排技术创新、产业结构和制度创新以及人类生存发展观念的根本性转变.     

Carbon nanotube–carbon nanotube contacts as an alternative towards low resistance horizontal interconnects

We propose to use carbon nanotube (CNT)–CNT contacts instead of CNT–metal contacts as a route towards low resistance CNT horizontal interconnects. We characterize by electrical transport measurements and Kelvin probe force microscopy the contacts present in CNT horizontal interconnects grown by chemical vapor deposition between titanium nitride electrodes.When two CNTs with diameter around 30 nm grow from opposing electrodes and touch each other with their outermost shells, typical contact resistances around 16 kΩ are obtained. The corresponding contact resistivity of about 14 Ω μm² is one order of magnitude smaller than the contact resistivity of a CNT touching the TiN surface with its outermost shell. On the other hand, the contact resistance of a CNT grown from a nickel catalyst particle deposited on a TiN electrode is negligibly small when compared to the above mentioned contact resistances. Our results demonstrate that we are able to grow from opposing electrodes CNTs that touch each other with a corresponding high density (up to 10¹¹ cm⁻²) of CNT–CNT contacts. This may offer an effective solution towards the growth of low resistance CNT horizontal interconnects.     

The synthesis of carbon nanotubes at low temperature via carbon suboxide disproportionation

Carbon nanotubes were synthesized via a novel route using an iron catalyst at the extremely low temperature of 180 °C. In this process, carbon suboxide was used as carbon source, which changed to freshly formed free carbon clusters through disproportionation. The carbon clusters can grow into nanotubes in the presence of Fe catalyst, which was obtained by the decomposition of iron carbonyl Fe₂(CO)₉ at 250 °C under nitrogen atmosphere. The products were characterized with XRD, TEM, HRTEM and Raman spectroscopy.     

The adsorption of water vapor on super absorbent product at low temperatures and low mass

The adsorption isotherms of water vapor on super absorbent product have the same form of type III isotherm at ambient temperature with the hysteresis phenomena. For temperatures lower than ambient, the isotherms become deformed because of the chains effect. The polymer is characterized by a multilayer adsorption, which occurs before a full‐course is complete. During adsorption reactions, the polymer undergoes rearrangement polymeric network, which results from a cooperative diffusion of the water molecules and from a chain spacing followed by an expansion of the polymeric network. Three types of water molecules adsorbed on polymer were identified: strongly dependent water, adsorbed water, and the water only trapped between the macromolecular chains. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 1450–1456, 2006     

低碳混合醇燃烧热的测定

测量甲醇、乙醇及甲醇/乙醇体积比19∶1,18∶2,17∶3…1∶19的20组燃烧热。结果表明,乙醇含量越高,燃烧值也越大。甲醇/乙醇体积比1∶19时燃烧放出的热量最高。但综合价格与燃烧热,-QV/价格在甲醇/乙醇体积比17∶3时最佳,可作为大规模使用低碳混合醇作替代能源的参考。     

低碳混合醇燃烧热的测定

测量甲醇、乙醇及甲醇/乙醇体积比19∶1,18∶2,17∶3…1∶19的20组燃烧热。结果表明,乙醇含量越高,燃烧值也越大。甲醇/乙醇体积比1∶19时燃烧放出的热量最高。但综合价格与燃烧热,-QV/价格在甲醇/乙醇体积比17∶3时最佳,可作为大规模使用低碳混合醇作替代能源的参考。     

阿博格低成本全电动注塑机

最近,德国注塑设备制造商阿博格在德国Lossburg市总部的“科技日”的开放日上推出“入门级”AllrounderAlldrive系列全电动新注塑机。     

A step towards controlled-diameter single walled carbon nanotubes

This research treats a particularly challenging undertaking in carbon nanoscience: controlling the diameter distribution of single walled carbon nanotubes (SWCNTs) grown using CVD. To do so requires the fabrication of well-separated and monodispersed catalytic metal nanoparticles which can be uniformly distributed on a substrate. We propose a new strategy involving the preparation of a monolayer of chemisorbed nickel acetylacetonate which is shown by infrared spectroscopy and coupled thermogravimetric–mass spectrometry analyses to be anchored to the surface silanol groups of the substrate. After decomposition of this precursor, the nickel remains bonded with these surface silanol groups which upon further heating results in good dispersion of the nanoparticles over the silica surface. Using this catalyst, SWCNTs with a very discrete chiral preference and a narrow diameter distribution were synthesized at moderate temperature. This work thus opens new perspectives for the fabrication of uniform-diameter carbon nanotubes.     

Mesoporous N-containing carbon nanosheets towards high-performance electrochemical capacitors

We developed a direct carbonization strategy to efficiently fabricate mesoporous N-containing carbon nanosheets (N-CNSs) by using polyaniline nanosheets as a carbon precursor. Physicochemical characterizations revealed that the as-synthesized N-CNSs with 5.9 wt.% N species possessed a well-developed mesoporous architecture with large specific surface area of 352 m² g⁻¹, high mesoporous volume of 0.32 cm³ g⁻¹, and average pore size of ∼5.2 nm. When further utilized as an electrode for electrochemical capacitors, the mesoporous N-CNSs delivered a large specific capacitance of 239 F g⁻¹ at 0.5 A g⁻¹, and even 197 F g⁻¹ at a high current load of 8 A g⁻¹, indicating its good rate behavior. Furthermore, the capacitance degradation of ∼4% over continuous 5000 charge–discharge cycles at 6 A g⁻¹ further verified its good electrochemical stability at high rates for long-term electrochemical capacitors application.