CAJ | 학술논문

采用直接电沉积法制备了纳米银修饰丝网印刷电极,利用扫描电子显微镜对电极表面纳米银颗粒进行了表征.实验结果表明,电极表面纳米银颗粒的尺寸和覆盖度随电沉积的时间而增加.研究了修饰电极的电化学性质,该电极对H2O2的电还原过程具有明显的催化作用.通过测量该还原电流,可以实现对10～3 mmol/L 范围内的H2O2进行测定.
채용직접전침적법제비료납미은수식사망인쇄전겁,이용소묘전자현미경대전겁표면납미은과립진행료표정.실험결과표명,전겁표면납미은과립적척촌화복개도수전침적적시간이증가.연구료수식전겁적전화학성질,해전겁대H2O2적전환원과정구유명현적최화작용.통과측량해환원전류,가이실현대10～3 mmol/L 범위내적H2O2진행측정.
Silver nanoparticles were fabricated on screen-printed carbon electrodes (SPCE) by the direct electrodeposition process. The Ag nanoparticles deposited on SPCE were characterized by scanning electron microscopy (SEM). The density and size of nanoparticles on the surface of SPCE increased with deposition time. The electrochemical reduction of H2O2 on Ag nanoparticle modified SPCE (Ag-SPCE) was investigated by cyclic voltammetry. A linear calibration ranged from 10 mol/L to 3 mmol/L for H2O2 was found for this Ag-SPCE.