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《Advanced Sustainable Systems》2017,1(5)
Development of novel light‐weight materials with high areal/volumetric energy density using bioresources provides a sustainable solution for portable energy storage devices. Most of the existing materials are powders or disordered textures with marginal interconnectivity among micro‐/mesoporous structures, leading to a low specific capacitance per geometric area and higher internal resistance as electrode materials. This work describes a simple strategy to develop carbon nanotubes on highly interconnected fibers in a carbonized cotton cloth using a single‐step chemical vapor deposition method. The developed material shows hierarchical structures with low weight (0.27 g cm−3), high surface area (137 m2 g−1), and excellent electrical conductivity (3.0 S cm−1). When employing the developed material as electrodes for aqueous and solid–gel electrolyte based supercapacitors, the sample exhibits specific areal capacitances of 1286 mF cm−2 (at 1 mA cm−2 current density) and 1140 mF cm−2 (at 2.5 mA cm−2 current density), respectively, which are much higher than recently reported carbon‐based electrode materials. The superior capacitance and high flexibility of fibrous carbon cloth endow the material great potential for light‐weight energy storage applications. 相似文献
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分析了铝电解工业PM2.5的来源,估计电解铝生产产生的PM2.5大约为66万t/a,加上铝电解工业其他工段产生的粉尘,整个铝冶炼行业产生的PM2.5粉尘达到80万～100万t/a以上。进行铝电解工业废气排放PM2.5控制技术的研究,实际上是对布袋除尘器过滤技术的研究,包括除尘器内部流场控制技术、用于电解铝行业袋式除尘器专用滤料技术、滤袋上滤饼及清灰控制和烟气平衡自适应控制技术的研究。阐述了有关研究方法及阶段性研究成果,以及下一步的研究目标。 相似文献
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高炉煤气全干式布袋除尘净化技术 总被引：1，自引：0，他引：1
通过对国内外大中型高炉煤气除尘系统的分析比较,对高炉煤气除尘系统几个重大技术问题提出自己的见解,并指出新建、改建、扩建大中型高炉为避免重复投资,应不建湿式除尘系统备用,而向建干式布袋除尘方向发展。 相似文献
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采用滤布滤池对南方某城市污水处理厂二级出水进行强化处理中试研究,以达到中水回用的目的。实验选用氯化铁(FeCl3)、聚合氯化铝铁（PAFC）和聚合氯化铝（PAC）作为强化滤布滤池除磷效果的混凝剂。当不投加混凝剂时,滤布滤池对TP和COD的平均去除率为28.76%和8%,其中TP的去除效果受进水水质影响较大;当投加氯化铁、聚合氯化铝铁与聚合氯化铝强化滤布滤池时,滤布滤池对TP的平均去除率分别为63.58%、60.13%和66.94%,TP去除效果受进水水质影响较小;对SS的平均去除率分别为70.7%、64.3%和49.1%;对COD平均去除率分别为17.7%、26.3%和27.7%。滤布滤池对TN和NH3-N去除效果不稳定。 相似文献
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为了降低构建微生物燃料电池（MFCs）的成本,比较了以碳毡和碳布作为阴极材料,在阴极利用功能微生物作为催化剂时电池的产电性能。结果表明,两电池启动时间基本相同,20 d左右达到稳定,但稳定期碳布作阴极的电池电压比碳毡作阴极的电池电压高出了60 mV左右。碳毡和碳布作阴极时,电池在10 d和20 d的最大功率密度分别由10.24和11.14 mW/m2提升到了18.18和30.15 mW/m2,相应内阻则分别由1 000和600 Ω降到了250和200Ω。循环伏安法（CV）显示两材料单独做电极时氧化还原情况相似,扫描电镜（SEM）观察到两者不同表面特性导致碳毡对污泥附着强于碳布,进而使氧气传递受到限制,产电降低。 相似文献
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Electroreductive dechlorination of chlorophenols with Pd catalyst supported on solidelectrode was studied. As solid electrodes, carbon cloth (CC), carbon felt (CF) and titanium mesh were used, and palladium was plated on solid electrodes by either electrolytic or electroless method. On each electrode with Pd, chlorophenols were qualitatively dechlorinated to phenol, while they were entirely intact on electrodes without Pd. Moreover, neither base electrode nor plating method significantly affected the activity of Pd as far as it was sufficiently loaded on the electrode. Based on the results in the experiments using one electrode repeatedly, Pd catalyst proved to possess a satisfactory duarability under the present condition. It was suggested that the reactive species responsinble for the dechlorination of chlorophenols could be formed during preliminary electrolysis. Thus, (Pd)x-H resulting from the adsorption of electrogenerated hydrogen on metallic Pd might be assumed most probable. 相似文献
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针对国电大武口热电有限公司脱硫真空皮带脱水机缺陷频发问题,从皮带跑偏、滤布跑偏、滤布撕裂、脱辊变形、脱水效果差等方面对缺陷的发生原因进行分析,从运行、检修、安装等方面提出解决频发缺陷的改进措施。改造结果表明:真空皮带脱水机缺陷率明显降低,能够确保长期、安全、稳定运行。 相似文献
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介绍了湿法脱硫系统中真空皮带脱水机滤布的一种光漫反射纠偏装置,包括其主要部件如光漫反射传感器、电动推杆驱动装置、滤布控制滚轮等,重点阐述了光漫反射纠偏装置的工作原理及纠偏过程。光漫反射纠偏装置的主要原理是通过光漫反射传感器的输出信号来判断滤布的跑偏,根据光漫反射传感器的输出信号,DCS控制系统发送指令启动可伸缩的电动推杆装置来伸长和收缩推杆,从而控制滤布滚轮围绕着旋转点进行相应的倾斜调整,使滤布回到其中心位置。 相似文献