纳米多孔铜带的制备及表征  

Preparation and Characterization of Nanoporous Copper Ribbons

作　　者：李梅[1,2] 周永志[1,2] 耿浩然[1] 

机构地区：[1]济南大学材料科学与工程学院,山东济南250022 [2]上海华普汽车有限公司,上海201501

出　　处：《济南大学学报（自然科学版）》2012年第2期111-114,共4页Journal of University of Jinan(Science and Technology)

基　　金：国家自然科学基金(50871047);山东省自然科学基金(ZR2010EM071);济南大学研究生创新基金(YCX10016)

摘　　要：以Cu15Al85合金薄带为前驱体,采用去合金化法,制备孔结构单一、均匀且三维贯通的纳米多孔铜(NPC),研究不同去合金腐蚀液和退火处理条件对样品微观形貌的影响。经场发射扫描电镜(FE-SEM)、X-射线衍射(XRD)和能谱仪(EDS)对NPC检测,结果表明:与在w(HCl)=5%的酸性腐蚀液中自由腐蚀去合金化得到的NPC相比,经w(NaOH)=5%的碱性腐蚀形成的NPC的多孔结构更加完整,孔径由150 nm减小到100 nm,孔壁由40 nm减小到10 nm;对前躯体合金薄带进行退火处理后,去合金化形成的NPC多孔形貌更加完整均一,孔径尺寸由150 nm减小到100 nm。Nanoporous copper(NPC) ribbons were synthesized by free corrosion dealloying of Cu15Al85 alloy ribbons.The effects of etching solution and annealing process on the dealloying process and micro-morphology of NPC were investigated.The components and microstructures of NPC were characterized by utilizing field emission scanning electron microscopy(FE-SEM),X-ray diffraction(XRD) and energy dispersive X-ray analysis(EDS).XRD analyses show that,compared with those dealloyed in the same concentration of HCl solution,the porous structure of NPC dealloyed in w(NaOH)=5% solution is more complete,and the pore/wall sizes reduce from 150/40 nm to 100/10 nm.Furthermore,the porous structure of NPC is more complete and uniform when the precursor alloy is annealed,and the pore size also decreases from 150 nm to 100 nm.

关 键 词：去合金化 纳米多孔铜 腐蚀液 退火处理 

分 类 号：TB383.1[一般工业技术—材料科学与工程]