Ti阳极上电沉积制备Pb-聚丙烯腈-碳化钨复合镀层及其电化学性能

doi:10.3724/SP.J.1095.2011.00387

摘要/Abstract

摘要：

通过在酒石酸钾钠体系中加入聚丙烯腈（PAN）、碳化钨（WC）和PbO固体颗粒，在Ti阳极上电沉积制得Pb-PAN-WC复合镀层。主要研究了电沉积工艺条件(电流密度、温度等)对Pb-PAN-WC复合镀层沉积速度及析氧动力学参数的影响。在ZnSO4-H2SO4体系中测定的阳极极化曲线表明，最佳工艺条件及固体颗粒加入量为：电流密度1.5 A/dm2，温度35 ℃，15 g/L的PAN，40 g/L的WC。通过和纯铅镀层的阳极极化曲线和析氧动力学参数对比可知，Pb-PAN-WC复合镀层的电化学性能优于纯铅镀层。

关键词: Pb-PAN-WC复合镀层, 工艺条件, 阳极极化曲线

Abstract:

Electrodeposited Pb-polyacrylonitrile(PAN)-tungsten carbide(WC) composite coatings on Ti anode were prepared by adding PAN, WC and PbO solid particles in potassium sodium tartrate system. The influences of process conditions such as current density and temperature on the depositing rate and oxygen evolution kinetic parameters of composite coated electrodes were studied. The anodic polarization curves in ZnSO4-H2SO4 system show that the optimal process conditions are: current density of 1.5 A/cm2, temperature of 35 ℃, 15 g/L of PAN in bath and 40 g/L of WC. Comparing oxygen evolution kinetic parameters of composite coated electrodes with anodic polarization curves of pure lead coated electrode, it can be concluded that the electrochemical properties of Pb-PAN-WC composite coating is better.

Key words: Pb-PAN-WC composite coating, optimal process conditions, anodic polarization curves

中图分类号:

O657.3

姜妍妍, 曹梅, 郭忠诚,陈步明. Ti阳极上电沉积制备Pb-聚丙烯腈-碳化钨复合镀层及其电化学性能[J]. 应用化学, 2011, 28(03): 308-313.

JIANG Yanyan1, CAO Mei2, GUO Zhongcheng1*, CHEN Buming1. Preparation and Electrochemical Properties of Electrodeposited Pb-Polyacrylonitrile-WC Composite Coatings on Ti Anode[J]. Chinese Journal of Applied Chemistry, 2011, 28(03): 308-313.

Ti阳极上电沉积制备Pb-聚丙烯腈-碳化钨复合镀层及其电化学性能

Preparation and Electrochemical Properties of Electrodeposited Pb-Polyacrylonitrile-WC Composite Coatings on Ti Anode

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