COPPER-FREE

作品数：7被引量：5H指数：2
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相关期刊：《Chinese Journal of Mechanical Engineering》《Friction》《Chinese Journal of Chemistry》《Chinese Chemical Letters》更多>>
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Copper-Free Resin-Based Braking Materials:A New Approach for Substituting Copper with Fly-Ash Cenospheres in Composites
《Chinese Journal of Mechanical Engineering》2024年第2期401-412,共12页Kaikui Zheng Youxi Lin Shanmin You Zhiying Ren Jianmeng Huang 
Supported by National Natural Science Foundation of China(Grant No.52275178);Fujian Provincial Natural Science Foundation of China(Grant Nos.2020J05115,2022J01073);Project National United Engineering Laboratory for Advanced Bearing Tribology,Henan University of Science and Technology of China(Grant No.202103).
Copper particles emitted from braking have become a significant source of environmental pollution.However,copper plays a crucial role in resin-based braking materials.Developing high-performance braking materials with...
关键词：Fly-ash cenospheres Braking materials Friction and wear Heat-fade resistance Wear form 
Copper-Free Click Chemistry-Mediated Assembly of Single Quantum Dot Nanosensor for Accurately Monitoring Locus-Specific m^(6)A in Cancer Cells
《Chinese Journal of Chemistry》2024年第5期499-504,共6页Yue-Ying Li Ning-Ning Zhao Yi-Xuan Geng Qian Han Jian-Ge Qiu Bing-Hua Jiang Zi-Yue Wang Chun-Yang Zhang 
supported by the National Natural Science Foundation of China(Grant No.21735003).
N6-methyladenosine(m^(6)A)plays an important role in embryogenesis,nuclear export,transcription splicing,and protein translation control.Herein,we demonstrate a copper-free click chemistry-mediated assembly of single ...
关键词：RNA methylation Click chemistry Förster resonance energy transfer BIOSENSOR Cancer 
Arenesulfonyl Fluoride Synthesis via Copper-free Sandmeyer-type Fluorosulfonylation of Arenediazonium Salts被引量：2
《Chinese Journal of Chemistry》2020年第10期1107-1110,共4页Qiongzhen Lin Zhanhu Ma Changge Zheng Xiao-Jun Hu Yong Guo Qing-Yun Chen Chao Liu 
The authors gratefully acknowledge the finalncial support from the National Natural Science Foundation of China(Nos.21421002,201871283,21737004,21672239);Science and Tech-nology Commission of Shanghai Municipality(No.17ZR1437000);the Foundation of Science and Technology on Sanming Insti-tute of Fluorochemical Industry(FCIT201701BR).
Summary of main observation and conclusion The limited availability of highly valuable arenesulfonyI fluorides seriously hinders their further applica-tion in many research fields including medicinal chemistry and che...
关键词：FLUORINE ATTRACTIVE SALTS 
Development and characterization of stainless steel fiber-based copper-free brake liner formulation:A positive solution for steel fiber replacement被引量：1
《Friction》2020年第2期396-420,共25页Vijay R D.Lenin SINGARAVELU R.JAYAGANTHAN 
This study deals with the development of drum brake liner for a multi-utility vehicle possessing a hydraulic brake system by varying 7 weight%of steel fiber and stainless steel fiber each,in friction composite formula...
关键词：stainless steel fiber steel fiber brake liner friction composite 
PEG Click-Triazole Palladacycle： An Efficient Precatalyst for Palladium-Catalyzed Suzuki-Miyaura and Copper-free Sonogashira Reactions in Neat Water
《Chinese Journal of Chemistry》2015年第7期705-710,共6页Guofu Zhang Wei Zhang Yuxin Luan Xingwang Han Chengrong Ding 
We gratefully acknowledge the financial support from the National Natural Science Foundation of China （No. 20702051）, the Natural Science Foundation of Zhejiang Province （LY13B020017） and the Key Innovation Team of Science and Technology in Zhejiang Province （No. 2010R50018）.
A novel water-soluble, phosphine-free PEG ＂click＂ triazole palladacycle has been successfully synthesized. As a precatalyst, the palladacycle exhibited superior catalytic activity towards Suzuki-Miyaura and copper-f...
关键词：palladium cross-coupling PALLADACYCLE N-LIGANDS green chemistry 
A copper- and amine-free Sonogashira reaction employing chlorophosphine as new and efficient ligand
《Chinese Chemical Letters》2012年第2期185-188,共4页Wen Peng Mai Jin Wei Yuan Zhi Cheng Li Gang Chun Sun 
Henan University of Technology for financial support(The Introduction of Talent Fund)
An efficient palladium-catalyzed copper- and amine-free Sonogashira coupling reaction of aryl bromides and chlorides was studied using a sterically hindered monooxychlorophosphine as new ligand.The use of 2 mol%Pd（OA...
关键词：Palladium Copper-free Coupling Sonogashira reaction Chlorophosphine 
Using Pd-salen complex as an efficient catalyst for the copper-and solvent-free coupling of acyl chlorides with terminal alkynes under aerobic conditions被引量：2
《Chinese Chemical Letters》2010年第6期656-660,共5页Mohammad Bakherad Amir Hossein Amin Ali Keivanloo Bahram Bahramian Mersad Raessi 
the Research Council of Shahrood University of Technology for the support of this work
The palladium-salen complex palladium(Ⅱ) N,N'-bis{[5-(triphenylphosphonium)-methyl]salicylidene}-1,2-ethanediamine chloride was found to be a highly active catalyst for the copper- and solvent-free coupling reaction ...
关键词：COPPER-FREE YNONES Pd-salen complex NEAT 
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