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Graphite recycling from spent lithium-ion batteries for fabrication of high-performance aluminum-ion batteries

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Rare Metals 2024年第5期43卷 2161-2171页

作者： Li Wang Chao Wang Jing-Yi Zhang Jia-Cheng Qiu Xu-Wang Fu Zi-Rui Zhang jian-min feng Lei Dong Cong-Lai Long De-Jun Li Xiao-Wei Wang Bao Zhang Jia-feng Zhang Rui-Rui Zhao College of Physics and Materials Science Tianjin Normal UniversityTianjin300387China National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083China School of Chemistry South China Normal UniversityGuangzhou510631China

Efficient extraction of electrode components from recycled lithium-ion batteries(LIBs)and their highvalue applications are critical for the sustainable and ecofriendly utilization of *** work demonstrates a novel approach to stripping graphite anodes embedded with Li^(+)from spent LIBs directly in anhydrous ethanol which can be utilized as high efficiency cathodes for aluminum-ion batteries(AIBs).Recycled graphite(RG)with foam morphology and crystal structure defects was obtained under the action of ultrasonic peeling and gas generation reaction between residual lithium-graphite interlayer compound and *** inherent open structure of RG facilitates the intercalation/deintercalation of chloralum anions(AlCl_(4)^(-))and enhances its AIB cathode *** electrochemical measurements revea that the RG cathode has a specific capacity of 123 m Ah·g^(-1)at a current of 5 A·g^(-1),which is 1.55 times higher than tha of unprocessed natural graphite and 1.25 times higher than that of commercial artificial ***,the RG cathode demonstrated remarkable stability,retaining its high particular capacity of 138.15 mAh·g^(-1)even through2000 times at 10 A·g^(-1)in a low-cost electrolyte consisting of an ionic liquid/urea/AlCl_(3)*** work offers a novel approach to reusing of graphite anode waste materials from LIBs.

关键词： Aluminum ion batteries Lithium-ion batteries Graphite anode Recycling

Mallet finger deformities treated by buried purse-string suture

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Chinese Journal of Traumatology 2011年第4期14卷 237-240页

作者： YAO jian-min ZHAO feng-jing Department of Hand Surgery Hangzhou Plastic Sur-gery Hospital Hangzhou 310014

Objective： To investigate the efficacy of buried purse-string suture in the treatment of mallet finger deformities. Methods： From February 2009 to February 2010, 12 patients with closed non-fracture mallet fingers were treated by buried purse-string suture. The rupture tendons were sutured by purse-string suture with an atraumatic needle, and the knots were buried under subcutaneous tissue. External fixator was used at the extension position of the finger every night within three weeks after operation. Results： All patients were followed up for 6-12 months, mean 7 months. According to the Patel＇s evaluation criteria, 2 cases （17%） obtained excellent results, 7 good （58%）, 2 fair （17%） and 1 poor （8%）. The overall rate of the cases with excellent and good outcomes was 75%. Conclusion： Buried purse-string suture is an easy and effective way to treat mallet finger deformities, with no serious postoperative complications or no need for reoperation.

关键词： Tendon injuries Finger injuries Suture techniques External fixator

Clinical observation of 36 patients with chronic nephritis proteinuria treated with Zhuangshen Gujing decoction

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TMR Clinical Research 2020年第3期3卷 103-108页

作者： Li-Chang Liu Xin Liu Qi Huang Wei-Hong Hong min-jian feng Yu-Yan Jin Xue-Fei Du Zhuhai Hospital Guangdong Traditional Chinese Medicine HospitalZhuhai 519015China

Objective:Our goal was to examine the impact of Zhuangshen Gujing decoction on proteinuria associated with chronic ***:72 patients with chronic nephritis proteinuria were divided randomly into two groups;one group was treated with Zhuangshen Gujing(n=36;treatment group)and the other group was treated with irbesartan(n=36;control group).After 6 months’treatment,urine protein and renal function were ***:Proteinuria resolved completely in four patients in the treatment group;complete disease resolution was observed only among three individuals in the control *** the 32 cases remaining in the treatment group,15 had substantial responses to Zhuangshen Gujing decoction,9 had partial responses,and 8 had no response to treatment;the overall the response rate was 73.33%.Among the 33 cases remaining in the control group,12 had a substantial response to irbesartan,5 had a partial response,and 16 had no response to treatment;the overall response rate among the controls was 57.67%(P=0.031).We also observed statistically significant differences with respect to quantitative comparisons of urinary protein at 24 days after a single course of treatment(P=0.001).Conclusion:Zhuangshen Gujing decoction is effective in treating chronic nephritis proteinuria.

关键词： Zhuangshen Gujing decoction Chronic nephritis Proteinuria Clinical observation

Optical and Electrical Properties of Different Oriented CVD Diamond Films

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Optical and Electrical Properties of Different Oriented CVD ...

国际材料科学与工程学术研讨会

作者： SU Qing-feng, XIA Yi-ben, WANG Lin-jun, LIU jian-min, RUAN jian-feng, CUI jiang-tao, jianG Li-wen, SHI Wei-min(School of Materials Science and Engineering, Shanghai University, Shanghai, 200072, China

For different oriented CVD diamond films have different properties, in this paper optical and electrical properties of different oriented diamond films have been investigated. The measured results indicate diamond films are high quality and the properties of (001)-oriented diamond film are better than those of (111)-oriented one. Refractive index and extinction coefficient of (001)-oriented diamond film in the wavelength range of 2000-12000 nm is 2.391 and in the order of 10, respectively. Refractive index is quite closed to that of natural diamond of 2.417. And for (111)-oriented one it is 2.375 and in the order of 10. Dark current of (001)-oriented diamond film is in the order of 10 A under the voltage of 40V Resistivity of (001)-oriented CVD diamond film obtained is about 3.0×l0Ω·cm. The current of (001)-oriented diamond film is almost no change with the time testing.

关键词： CVD diamond film oriented growth optical properties electrical properties

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生态城市建设中环境工程技术的运用分析

工程建设与设计 2024年第3期 115-117页

作者：闵建锋中材地质工程勘查研究院有限公司北京100102

针对当前我国生态城市建设过程中存在的环境处理技术缺陷,研究分析了环境工程技术中所包含的主要污染处理技术,并对其面临的技术困难进行了优化,解决了各类污染处理技术在生态城市环境建设中的不足,实现了生态城市环境优化的目的。研究... 详细信息

针对当前我国生态城市建设过程中存在的环境处理技术缺陷,研究分析了环境工程技术中所包含的主要污染处理技术,并对其面临的技术困难进行了优化,解决了各类污染处理技术在生态城市环境建设中的不足,实现了生态城市环境优化的目的。研究结果表明,环境工程技术在生态城市建设中有重要的作用,优化后的各类污染处理技术能够改善现有的环境状态。

关键词：生态城市环境建设污水处理废气处理生态修复

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原位快速检测重金属镉的研究进展

粮油食品科技 2024年第2期32卷 127-135页

作者：闵建锋方梦旗栾云霞中材地质工程勘查研究院有限公司北京100102 北京市农林科学院质量标准与检测技术研究所北京100097 北京城市学院生物医药学部北京100191

镉是一种对环境和人体健康有害的重金属,虽然基于原子吸收光谱仪和电感耦合等离子体质谱仪等大型仪器的常规检测方法准确度高,但不能满足快速现场检测和高通量筛查的需求。镉的原位快速检测技术,可以在粮食安全、农业物联网、生物育种... 详细信息

镉是一种对环境和人体健康有害的重金属,虽然基于原子吸收光谱仪和电感耦合等离子体质谱仪等大型仪器的常规检测方法准确度高,但不能满足快速现场检测和高通量筛查的需求。镉的原位快速检测技术,可以在粮食安全、农业物联网、生物育种和环境监测等领域提供一种新型、高效、实时的方法,特别是在筛选不同镉吸收和积累特性的植物品种方面具有很大的应用潜力。本文从检测技术原理和特点入手,总结了针对动植物体内重金属镉的快速原位检测的不同技术,如电化学传感技术、荧光传感技术、光学传感器技术等,及其在食品安全监测、风险评估和在生物体内的迁移、转化和积累等领域的研究进展、应用前景和发展方向,以期为相关的科研工作提供技术参考。

关键词：重金属镉原位快速检测

阴离子聚合PA6与苎麻纤维复合反应中的阻聚与变色机理的研究

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高分子学报 2014年第5期24卷 664-671页

作者：阚泽陈鹏刘正英冯建民杨鸣波四川大学高分子科学与工程学院高分子材料工程国家重点实验室成都610065

通过浇注成型的方法研究并发现了苎麻纤维与阴离子聚合尼龙6(APA-6)反应加工过程中严重的阻聚和变色问题.为了分析阻聚和变色的机理并寻找解决方案,选取了3种不同的引发剂(氢氧化钠、己内酰胺钠盐和己内酰胺溴化镁)分别与微晶纤维素(MCC... 详细信息

通过浇注成型的方法研究并发现了苎麻纤维与阴离子聚合尼龙6(APA-6)反应加工过程中严重的阻聚和变色问题.为了分析阻聚和变色的机理并寻找解决方案,选取了3种不同的引发剂(氢氧化钠、己内酰胺钠盐和己内酰胺溴化镁)分别与微晶纤维素(MCC)在150℃的真空条件下反应.然后分别采用傅里叶变换红外光谱、原子吸收光谱、X-射线衍射和核磁共振波谱表征了引发剂和MCC反应前后的变化.结果证明,阻聚和变色的机理是在强碱性和高温条件下,纤维素发生了剥皮反应,产生的副产物又极易与引发剂反应,因此导致APA-6中起引发作用的己内酰胺阴离子被消耗,从而使得聚合反应终止.另外,由于己内酰胺溴化镁(C1)的低活性和弱碱性,使得剥皮反应很大程度的降低,进而避免了引发剂阴离子的消耗,从而使得阻聚和变色问题得到明显改善,最终实现了通过反应加工的方法制备APA-6与苎麻纤维复合材料的目的.

关键词：阴离子聚合尼龙6 苎麻纤维反应加工剥皮反应

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光时分抽样A/D转换

中国激光 2001年第12期28卷 1096-1098页

作者：张洪明姚敏玉张剑峰高以智清华大学电子工程系北京100084

报道了一种应用于高速光A D转换的时分抽样方法,利用这一方法实现 16× 2 5GHz抽样率对 2 5GHz微波周期信号的抽样测量。分析了抽样误差的主要原因和减少误差的方法,并针对调制器的调制非线性修正抽样结果,得到的抽样信噪比为 2

关键词：光时分抽样 A/D转换器微波周期信号

高分子量级分含量对熔体挤出拉伸法制备聚丙烯微孔膜的影响

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高分子学报 2012年第4期22卷 462-468页

作者：丁治天刘正英刘葭冯建民杨伟杨鸣波 NJil大学高分子科学与工程学院高分子材料工程国家重点实验室成都610065

通过熔体挤出拉伸法以两种聚丙烯为原料制备微孔膜.通过考察原料分子量数据发现高分子量聚丙烯(PPH)在高分子量级分(重均分子量>106)含量上大于低分子量聚丙烯(F401).PPH的弛豫时间在相同条件下也远大于F401.红外二向光法结果表明,PPH... 详细信息

通过熔体挤出拉伸法以两种聚丙烯为原料制备微孔膜.通过考察原料分子量数据发现高分子量聚丙烯(PPH)在高分子量级分(重均分子量>106)含量上大于低分子量聚丙烯(F401).PPH的弛豫时间在相同条件下也远大于F401.红外二向光法结果表明,PPH在相同熔体牵伸比下片晶取向度较F401高.相同加工条件下PPH微孔膜片较F401成孔分布更均匀,孔径尺寸也更均匀.2种微孔膜孔隙率都随熔体牵伸比的增加而提高,微孔分布随着熔体牵伸比的提高和片晶取向度的增加而趋于均匀,孔尺寸也随之区域均匀.研究表明,聚合物树脂中高分子量级分含量是影响预制膜中片晶取向度、冷热拉伸成孔分布和尺寸均匀度的重要影响因素.

关键词：聚丙烯,弛豫时间,片晶结构,取向,微孔膜