CAJ | 학술논문

以氯铂酸为前驱体、三缩四乙二醇（TEG）为溶剂和还原剂、聚乙烯吡咯烷酮（PVP）为稳定剂，在一定量 KI和十八胺（ODA）存在下，微波辐照加热100 s，制备了形貌单一、大小均匀的花状 Pt 纳米颗粒，利用透射电子显微镜（TEM）、X-射线粉末衍射（XRD）和 X-射线光电子能谱（XPS）等对产物进行了表征。结果表明，制备 Pt 纳米花的最适宜H2 PtCl6∶ODA∶KI∶PVP（物质的量比）为3∶10∶12∶35，所制备的 Pt 纳米花对甲醇氧化的电催化活性是商业铂黑的2．4倍。
이록박산위전구체、삼축사을이순（TEG）위용제화환원제、취을희필각완동（PVP）위은정제，재일정량 KI화십팔알（ODA）존재하，미파복조가열100 s，제비료형모단일、대소균균적화상 Pt 납미과립，이용투사전자현미경（TEM）、X-사선분말연사（XRD）화 X-사선광전자능보（XPS）등대산물진행료표정。결과표명，제비 Pt 납미화적최괄의H2 PtCl6∶ODA∶KI∶PVP（물질적량비）위3∶10∶12∶35，소제비적 Pt 납미화대갑순양화적전최화활성시상업박흑적2．4배。
Pt Nanoparticles with uniform size and well-defined flower-like structure were synthesized with chloroplatinic acid as precursor,tetraethylene glycol(TEG)as both solvent and reducing agent,polyvinylpyrro-lidone(PVP)as stabilizer in the presence of an appropriate amount of KI and octadecylamine(ODA)under mi-crowave irradiation for 100 s.The products were characterized by transmission electron microscopy(TEM),X-ray powder diffraction(XRD)and X-ray photoelectron spectroscopy(XPS).Results showed that the optimum molar ratio of H2 PtCl6 ∶ODA∶KI∶PVP was 3∶10∶12∶35.The electrocatalytic activities of the as-prepared Pt nanoflowers towards methanol oxidation were 2.4 times of Pt black.