【摘要】 用循环伏安法在离子注入钯的玻璃碳电极上，研究了硝基苯在０．５ｍｏｌ／Ｌ硫酸溶液中的电还原过程，通过ＡＥＳ测量了离子注入电极的表面组成和各元素的浓度－深度分布，在４０ｋｅＶ下，注入剂量为１×ｌ０￣（１７）离子／ｃｍ＿２的钯注入到玻璃碳（ＧＣ）中可产生钯原子最大百分含量为２０％的近表面区。原基体注入钯后比未注入的ＧＣ对硝基苯（ＮＢ）的电还原有更高的活性，用气相色谱法检测到ＮＢ的还原产物苯胺，讨论了硝基苯在酸性溶液中电化学还原机理。更多还原

【Abstract】 The electroreduction process of nitrobenzene (NB) in 0. 5 mol/L sulfuric acid solution was studied by cyclic voltammetry by using palladium implanted glassy carbon(GC) eletrodes.The surface composition of implanted electrode and concentration depth profiles of various elements were measured by AES. Implantation of palladium into GC at 40 keV to a fluence of 1×10￣17 ions·cm￣(-2) produced a surface-near region with a maximum atomic concentration of 20% palladium.The implanted substrates are much more active than the untreated ones in the electroreduction of NB. Aniline was detected as a reduction product of NB by using gas chromatographic methods. The electroreduction mechanism of NB in acidic solution is discussed.更多还原