Preparation and Characterization of TiO_2 Nanotubes Array by Anodic Oxidation in Anionic Modified Glycerol-Based Electrolyte

本文采用电化学阳极氧化法以含氟的甘油和水混合溶液为电解液在纯钛表面制备了一层排列规整的TIO2纳米管阵列,研究了电解液中额外添加3种2价阴离子、不同的电解时间及不同的添加物浓度等因素对所获得的TIO2纳米管阵列形貌的影响。结果表明,在改性电解液中制备的TIO2纳米管阵列的长度均超过了未改性的电解液中制备的,并随着氧化时间的增长,纳米管管口直径增大,管壁变薄;同时添加的(nH4)2TIf6浓度在0.025~0.1 MOl.l-1范围内均可获得管长更长且形貌较好的TIO2纳米管阵列。High-order TiO2 nanotube arrays on titanium foils were prepared in glycerol-based electrolyte containing fluorine and water by electrochemical anodic oxidation in this work.The influence of different dianion additives,different oxidation duration and concentration of electrolyte additives on the effect of the morphology of TiO2 nanotube arrays were investigated.Results showed that the length of TiO2 nanotube arrays in the modified electrolyte were longer than the samples in the unmodified electrolyte.And with the growth of oxidation duration,the diameter of the nanotubes increased,the wall were thinner;moreover better and longer TiO2 nanotube arrays can be prepared in the glycerol-based electrolyte with the range of the concentration of(NH4)2TiF6.国家自然科学基金(No.30970887;30600149); 卫生部科学研究基金(No.WKJ2008-02-037); 福建省杰青项目(No.2011J06019); 教育部重点项目(No.209061); 福建省纳米材料重点实验室科学基金(No.NM10-03)资助项

Electrodeposition of Active Platinum on Stainless Steel

采用低毒、较缓和条件下预处理不锈钢基底 ,在电沉积过程中引入超声波振荡技术 ,并筛选出最佳电流密度组合进行电沉积 ,制备出与基底粘结牢固、析氢电催化性能高的不锈钢镀铂电极。从电极的双层电容值可推出电极活性的改善主要归因于表面粗糙度的增加。The substrate of stainless steel was pretreated under low toxic and moderate conditions. Ultrasonic agitation technology was employed in the process of electodeposition. In addition, the optimal combination of current densities was selected. As a result, platinum plated stainless steel electrode which not only was adherent to the substrate but also possessed excellent electrocatalyticproperty for HER was prepared. It can be deduced from the measured values of the double layer capacity of the electrode that the improvement of the electrode activity was mainly due to the increase in surface roughness of the electrode.厦门大学固体表面物理化学国家重点实验室资助!课题 ( 950 1

(Ni-Mo)-WC Composite Electrode and Its Electrocatalytic Properties of Evoluting Hydrogen

在两种不同类型镀液中，用复合电沉积技术制备出（nI-MO）-WC复合电极.研究了其镀层形貌、组成和XPS光电子能谱.用这些电极在7MOl/lkOH溶液中作析氢反应电极，结果表明它们对氢的析出反应具有优良电催化活性.文中还对它们的催化性能进行了评价.This paper reports the electrodepositing (Ni-Mo)-WC composite coatings From two diFFerent electro bath.The shape,compose and XPS of the composite coatings was studied.In alkaline solution the electrocatalytic properties of evoluting hydrogen were investigated.The results show that the composite electrodes were provided with superior electrocatalytic activity.The electrocatalytic perFormances were appraised.厦门大学固体表面物理化学国家重点实验室资

(Ni-W)-WC复合镀层的研究

研究nI-W合金镀液中添加WC微粒制备(nI-W)-WC复合镀层的电沉积过程,表征镀层的结构和形貌,测试镀层在碱性溶液中的电催化析氢析氧性能,探讨镀层的耐蚀性。结果表明:(nI-W)-WC为晶态复合镀层,析氢析氧性能优越,耐蚀性优良。厦门大学固体表面物理化学国家重点实验室资助课

High Active Platinum Plated Titanium Electrode

在电沉积过程中采用超声波振荡技术，选择最佳条件可制备牢固高活性钛镀铂电极．超声波振荡技术改善了镀层与基底的粘结力．电极活性与双层电容有关，并归因于表面粗糙度．To prepare the adherent and high active platinum plated titanium electrode, ultrasonic agitation technology and the best conditions of electrodeposition were adopted. Ultrasonic agitation technology can be improved the cohesion between coatings and substrate. The activity of electrode has related to the double layer Capacity of electrode, which was due to the electrode rugosity.作者联系地址：福建师范大学化学系,厦门大学化学系,固体表面物理化学国家重点实验室Author's Address: Department of Chemistry, Fujian Normal University, Fuzhou 350007 Chen Yanzhen Hu Wenyun State Key Laboratory for Physical Chemistry of the Solid Surface Department of Chemistry, Xiamen University, Xiamen 36100

Robotized lossless cell screening method

本发明涉及机器人化无损细胞筛选方法，包括以下步骤：将包含两种细胞的样本悬浮于光电子镊芯片中，并平行投射两束宽度不同的第一入射光线和第二入射光线；设置第一入射光线静止并设置第二入射光线水平向第一入射光线移动，由于两种细胞所受的第二入射光线激发的光诱导介电泳机械力大于第一入射光线激发的光诱导介电泳机械力，两种细胞被推向第一入射光线；第二入射光线继续向第一入射光线移动并静止，此时在光诱导介电泳机械力作用下一种细胞越过第一入射光线，另一种细胞仍位于第一入射光线和第二入射光线之间，实现了两种细胞的筛选。本发明是一种免标记无损细胞的方法，且具有自动化、批量化及吞吐量高的优点

A Novel Pt(Ir) Plated Stainless Steel Electrode

应用欠电位沉积与锚定效应，研制了一种新型的不锈钢镀Ｐｔ（Ｉｒ）电极．此电极具有优越的电化学特性，可望用于微传感器．A novel Pt(Ir) plated stainless steel electrode have been developed, to be applied underpotential deposition and anchor effect. The electrode is provided with the excellent electrochemical characteristic, lt is possible to use the matter as micro-sensor.作者联系地址：福建师范大学化学系,福建师范大学实验中心,厦门大学化学系固体表面物理化学国家重点实验Author's Address: Dept. of Chem., Fujian Normal Univ., Fuzhou 35007Zheng XiCentre of Expe., Fujian Normal Univ., Fuzhou 35007Chen Yanzhen Hu Wenyun Dept. of Chem.,State Key Lab. for Phys. Chem. of the

Co WC Composite Elecrode

从钴镀液中添加ＷＣ微粒复合电沉积制备Ｃｏ－ＷＣ镀层，ＷＣ微粒的加入，加快了阴极电化学反应．Ｃｏ－ＷＣ复合电极在碱性溶液中具有优越的电催化析氢性能，并经受了长期间断电解的试验，电极性能稳定Electrodepositing Co WC composite coatings from cobalt electro bath including WC particles was studied. WC particles accelerate the cathode reaction of composie electrodeposition. In alkaline solution the electrocatalytic properties of evoluting hydrogen were investigated. The results show that the properties of electrode remain superior and stable in a long term interval electrolyzing experiment.作者联系地址：福建师范大学化学系,厦门大学固体表面物理化学国家重点实验室Author's Address: Fujian Normal Univ., Fuzhou 350007 Chen Yanzhen Hu wenyun The key lab. for phys. chem. of Xiamen Univ., Chem., Xiamen 36100