氧化鎢/氧化石墨烯和氧化鈰/氧化石墨烯複合材料結構之研究

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Title:	氧化鎢/氧化石墨烯和氧化鈰/氧化石墨烯複合材料結構之研究 Studies on the structure of tungsten oxide/graphene oxides and cerium oxide/graphene oxides composite
Authors:	呂冠霖
Contributors:	化學系應用化學碩士班
Keywords:	觸媒轉化器水熱法氧化鎢氧化鈰氧化石墨烯 Catalytic converter hydrothermal method Tungsten oxide Cerium oxide Graphene oxide
Date:	2020
Issue Date:	2020-08-05 15:20:50 (UTC+8)
Abstract:	氧化鎢和氧化鈰可廣泛的用於催化和材料科學中。對於它們在傳感器和污染方面已經有了各種應用。在過去的十年中，對碳質材料的關注也急劇增加，不僅針對它們的潛在應用，更著眼於其多樣化的結構。本文採用水熱法研究了鎢酸或氧化鈰或硝酸鈰銨對氧化石墨烯的結構和催化性能的影響，並利用拉曼光譜、傅立葉紅外線光譜、X光繞射、熱重分析、掃描式電子顯微鏡等方法對其進行了研究。在不同的加熱條件下，由鎢酸摻雜的結果表示，鎢酸反應成為了三氧化鎢。二氧化鈰的摻雜並沒有任何明顯的變化。硝酸銨鈰則反應成為了二氧化鈰。它們的反應機構、活性、穩定性，也將以熱分析做了初步的研究。 Tungsten oxides and Cerium oxides can be used in a wide range of catalysis and material science. Various applications have been explored for their novel applications in sensor and pollution. Interest in carbonaceous materials has also increased dramatically over the last decade, not only aimed at their potential applications but also their diversified structural chemistry. In this thesis, graphene oxide doped by tungstic acid or cerium oxide or ceric ammonium nitrate using hydrothermal methods have been investigated for their diversified structural and catalytic properties, using Raman spectroscopy, FTIR, XRD, TGA, SEM. Under different heating conditions, tungstic acid transforms to tungsten trioxide dropping with graphene oxide. There is no observable change in ceria. Cerium ammonium nitrate decomposes to form ceria. The reaction mechanisms, activity, stability and discussed will be proposed.
Appears in Collections:	[Department of Chemistry & Graduate Institute of Applied Chemistry ] thesis

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