在0.22MOl/l硫酸镍，0.06MOl/l钼酸钠，0.3MOl/l柠檬酸钠，30g/lPTfE乳液，0.1g/lfC-400表面活性剂的电解液（PH＝9）中，于温度45℃，通以10MA/CM2的电流，在纯Cu片上沉积出nI-MO-PTfE复合沉积层，Xrd、XPS表征结果表明，该复合沉积层属立方晶系，其点阵型式为面心点阵f，晶胞参数A为0.3573nM，镍钼合金为固溶体结构，其（111）织构度TC（111）为68%，表明该沉积层呈（111）择优取向.沉积层表面的氟以（Cf2）n的形式存在，SEM观察结果表明沉积层含有PTfE时表面的粗糙度增大.镍-钼-PTfE复合电沉积过程经历吸附态物种氢氧化镍和钼的氧化物，它们继续捕获电子被还原为镍钼合金，PTfE粒子以包埋的形式沉积于镀层中.循环伏安结果表明该复合电极在nAOH溶液中对甲醇的电氧化具有催化活性.NiMoPTFE composite electrode was obtained From a mixture containing 022 mol/L NiSO4·6H2O, 006 mol/L Na2MoO4·2H2O, 03 mol/L Na3C6H5O7·2H2O, 30 g/L PTFE and 01 g/L FC400 surFactant (pH=9) in 45 ℃ with current density of 10 mA/cm2.XRD of the composite deposit reveals that it is a Face centered cubic solid solution and exhibits (111) preFerred orientation.Xray photoelectron energy spectra of the composite deposit indicate that Fluorine exists in Form of (CF2)n.SEM showed the larger surFace roughness of the electrode.The mechanism of NiMoPTFE composite electrodeposition has been discussed.The cyclic voltammetric study showed that the electrocatalytic activity of NiMoPTFE electrode on methanol oxidation is bigger than that of NiMo electrode.国家自然科学基
