奈米碳材藉由酸化法以及氧化法的表面改質技術，自組裝奈米金
屬氧化物的機制，在本論文中將做詳細的探討。從酸化法的表面改質
技術，我們可以確認奈米碳材的表面改質，對於鍵結奈米金屬氧化物
顆粒的製程是有效的；另外，藉由不同氧化程度的氧化法表面改質製
程，我們可以知道在氧化程度（O/C 比例）提升的情況下，對於鍵結
奈米金屬氧化物顆粒的效果越好。另外，由於碳材表面鍵結有機官能
基影響，使得碳材的表面特性變為親水性，藉由有機官能基與金屬離
子發生離子吸附作用以及凡德瓦引力作用，使碳材得以自組裝奈米金
屬氧化物顆粒，其粒徑約5-10 nm。
成長奈米團簇的製程，是以奈米碳管自組裝鎳的氧化物顆粒為觸
媒，以及甲苯為前驅物，在900 度的溫度下成長奈米團簇。未經表面
改質處理的碳管，在成長後並沒有團簇出現，而是表面累積一層非晶
質碳；而經過表面改質並鍵結鎳的氧化物顆粒成長的奈米團簇，其結
構分為管狀結構物、以及棒狀結構物，產生該結構物的原因，與甲苯
在900 度的成長溫度下裂解不完全的因素有極大的關係。在奈米團簇
的BET 量測實驗中，由於鍵結較高程度鎳的氧化物顆粒的試片擁有
較密集的奈米團簇，所以其比表面積值會比原始碳管高；且在應用性
上，奈米碳管與奈米團簇之間的附著性較高，所以應用性也越好。

Through self-assembly monolayer surface treatment, metal oxide
nanoparticles uniformly dispersed onto carbon nanotubes (CNTs) surface
are investigated in this paper. Via acid treatment, it is confirmed metal
oxide nanoparticles are effectively bonded on the CNTs. By further
oxidization treatment, it was found that better bonding effects are resulted
from the longer oxidization time (higher O/C ratio). Surface bonding
functional groups convert the surface property of CNTs from
hydrophobic to hydrophilic and they act an important role to link with
metal ions via the ionic adsorption and van der Walls effects. The average
diameter of the bonding particles through the self-assembly monolayer
surface treatment is about 5-10 nm.
Through nickel oxide nanoparticles bonded on the surface of the CNTs
and the precursor gas of toluene in 900℃, carbon nanoclusters can be
synthesized on the CNTs. After synthesizing, no carbon nanoclusters
were observed but merely a layer of accumulated amorphous carbon on
the sample was formed without any tin oxide nanoparticles bonded on the
CNTs. It was observed that the morphology of the nanoclusters grown through the catalysts exhibits tube-like as well as rod-like structures. The
incomplete thermal cracking level of the toluene sparks off the specific
structures of the carbon nanoclusters. The more tin oxides bonded on the
CNTs the more carbon nanoclusters formed. It also contributes to the
higher BET surface area for better application.

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