一種由殼聚醣修飾石墨和鉑奈米粒子組成之化合物所修飾之玻璃碳電極之過氧化氫感測器

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

105139291

專利證號

I 633303

專利獲證名稱

一種由殼聚醣修飾石墨和鉑奈米粒子組成之化合物所修飾之玻璃碳電極之過氧化氫感測器

專利所屬機關 (申請機關)

國立臺北科技大學

獲證日期

2018/08/21

技術說明

我們報告使用殼聚醣包封石墨（石墨-CS）複合由鉑納米顆粒（PtNPs）的納米複合材料的非酶促過氧化氫（H 2 O 2）傳感器。石墨-CS複合物在5％乙酸製備通過在CS原始石墨的簡單超聲處理。裝飾石墨-CS（石墨-CS / PtNPs）複合物的PtNPs，製備石墨-CS PtNPs的電鍍修飾玻碳電極。所製備的石墨-CS / PtNPs複合物特徵在於通過掃描電子顯微鏡，元素分析和紅外光譜。該複合修飾電極顯示過氧化氫比的石墨/ PtNPs和PtNPs修飾電極增強的還原峰電流。所製備的石墨-CS / PtNPs複合修飾電極具有優異的電催化活性對H2O2還原，和安培響應超過0.25至2889.65μM濃度呈線性關係。 We report a non-enzymatic hydrogen peroxide (H2O2) sensor using the nanocomposite consisting of platinum nanoparticles (PtNPs) with chitosan encapsulated graphite (graphite-CS) composite. The graphite-CS composite was prepared by simple sonication of pristine graphite in CS in 5% acetic acid. The PtNPs decorated graphite-CS (graphite-CS/PtNPs) composite was prepared by electrodeposition of PtNPs on graphite-CS modified glassy carbon electrode. The as-prepared graphite-CS/PtNPs composite was characterized by scanning electron microscopy, elemental analysis and FTIR spectroscopy. The composite modified electrode displays an enhanced reduction peak current for H2O2 than that of electrodes modified with graphite/PtNPs and PtNPs. The as-prepared graphite-CS/PtNPs composite modified electrode exhibits excellent electrocatalytic activity towards the reduction of H2O2, and the amperometric response was linear over the concentration ranging from 0.25 to 2889.65 μM.

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