CAJ | 학술논문

以阳极氧化铝为模板，采用直流电沉积法制备了铂纳米线阵列电极。用扫描电子显微镜，X射线衍射等手段对铂纳米线阵列电极的形貌与结构进行了表征，同时应用循环伏安法和计时电流法测试研究了其对肼的电催化氧化性能。结果表明，铂能够在氧化铝模板孔洞中完整地沉积生长，且纳米线直径与氧化铝模板孔径一致，约为50 nm ；铂纳米线阵列电极对肼有明显的电催化活性，且其催化活性与肼浓度及扫描速率有关，肼浓度越大，催化活性越高，当肼浓度为50 mmol／L时，电流密度可达48 mA／cm2，约是铂柱电极的3倍；扫描速率越快，电流密度越大，且与峰电流密度的平方根成正比。铂纳米线阵列电极对肼也具有良好的催化稳定性和耐受性。
이양겁양화려위모판，채용직류전침적법제비료박납미선진렬전겁。용소묘전자현미경，X사선연사등수단대박납미선진렬전겁적형모여결구진행료표정，동시응용순배복안법화계시전류법측시연구료기대정적전최화양화성능。결과표명，박능구재양화려모판공동중완정지침적생장，차납미선직경여양화려모판공경일치，약위50 nm ；박납미선진렬전겁대정유명현적전최화활성，차기최화활성여정농도급소묘속솔유관，정농도월대，최화활성월고，당정농도위50 mmol／L시，전류밀도가체48 mA／cm2，약시박주전겁적3배；소묘속솔월쾌，전류밀도월대，차여봉전류밀도적평방근성정비。박납미선진렬전겁대정야구유량호적최화은정성화내수성。
Platinum (Pt) nanowires array electrodes were prepared by direct current electro‐deposition in anodic aluminum oxide (AAO) template .The morphology and microstructures of the Pt/AAO were characterized by X‐ray diffraction and field‐emission scanning electron microscope ,the electro catalytic oxidation activities of hydrazine on Pt/AAO nanowire arrays electrodes were investigated and contrasted with that of Pt column electrode by cyclic voltammetry and chronoamperometry .The results indicate that Pt is deposited in AAO completely ,and the diameter of nanowires is about 50 nm ,consisting with that of AAO hole;for hydrazine ,Pt nanowires array electrodes have obvious electriccatalytic activity , and its catalytic activity is associated with hydrazine concentration and the scanning rate;the larger is the hydrazine concentration ,the higher is the catalytic activity ;when the concentration of hydrazine is 50mmol/L ,the current density is about up to 48 mA/cm2 ,three times that of Pt column electrode;meanwhile ,the faster is the scanning rate ,the greater is the current density ,and the scanning rate is proportional to the square root of the peak current density .Pt nanowire arrays electrodes for hydrazine also have better catalytic stability and tolerance .