Home

Citation: LEE Shih-Fong, CHANG Yung-Ping, LEE Li-Ying. Enhancement of Field Emission Characteristics for Multi-Walled Carbon Nanotubes Treated with a Mixed Solution of Chromic Trioxide and Nitric Acid[J]. Acta Physico-Chimica Sinica, ;2008, 24(08): 1411-1416. doi: 10.1016/S1872-1508(08)60061-3 shu

Enhancement of Field Emission Characteristics for Multi-Walled Carbon Nanotubes Treated with a Mixed Solution of Chromic Trioxide and Nitric Acid

1.
Department of Electrical Engineering, Dayeh University, Changhua 500, Taiwan Province, P. R. China

Received Date: 25 March 2008
Available Online: 26 June 2008

A simple acid treatment method was applied to functionalize the surface and to modify the structures of multi-walled carbon nanotubes (CNTs) grown on silicon substrates using a mixed solution of chromic trioxide (CrO3) and nitric acid (HNO3). Scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, and energy dispersive spectrometer (EDS) were employed to investigate the mechanismcausing the modified field emission (FE) properties of the CNT films. After 20 min of CrO3+HNO3 treatment, the emitted currents were enhanced by more than one order of magnitude compared with those of the untreated CNTs. This large increases in emitted current can be attributed to the favorable surface morphologies, open-ended structures, and highly curved CNT surfaces in the CNT films. These factors altogether caused an increase in the field enhancement factors of CNTs. We also demonstrated that using a mixed solution of CrO3+HNO3 post-treatment exhibited a higher emission current and a lower turn-on electric field than in the CNTs treated with HNO3. The method provides a simple, economical, and effective way to enhance the CNT field emission properties.
- Chromic trioxide,
- Nitric acid,
- Carbon nanotubes,
- Field emission
1. [1]
  Hailang JIA , Hongcheng LI , Pengcheng JI , Yang TENG , Mingyun GUAN . Preparation and performance of N-doped carbon nanotubes composite Co₃O₄ as oxygen reduction reaction electrocatalysts. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 693-700. doi: 10.11862/CJIC.20230402
2. [2]
  Haihua Yang , Minjie Zhou , Binhong He , Wenyuan Xu , Bing Chen , Enxiang Liang . Synthesis and Electrocatalytic Performance of Iron Phosphide@Carbon Nanotubes as Cathode Material for Zinc-Air Battery: a Comprehensive Undergraduate Chemical Experiment. University Chemistry, 2024, 39(10): 426-432. doi: 10.12461/PKU.DXHX202405100
3. [3]
  Bowen Yang , Rui Wang , Benjian Xin , Lili Liu , Zhiqiang Niu . C-SnO₂/MWCNTs Composite with Stable Conductive Network for Lithium-based Semi-Solid Flow Batteries. Acta Physico-Chimica Sinica, 2025, 41(2): 2310024-0. doi: 10.3866/PKU.WHXB202310024
4. [4]
  Xiufang Wang , Donglin Zhao , Kehua Zhang , Xiaojie Song . “Preparation of Carbon Nanotube/SnS₂ Photoanode Materials”: A Comprehensive University Chemistry Experiment. University Chemistry, 2024, 39(4): 157-162. doi: 10.3866/PKU.DXHX202308025
5. [5]
  Shuhong Xiang , Lv Yang , Yingsheng Xu , Guoxin Cao , Hongjian Zhou . Selective electrosorption of Cs(Ⅰ) from high-salinity radioactive wastewater using CNT-interspersed potassium zinc ferrocyanide electrodes. Acta Physico-Chimica Sinica, 2025, 41(9): 100097-0. doi: 10.1016/j.actphy.2025.100097
6. [6]
  Chen Pu , Daijie Deng , Henan Li , Li Xu . Fe_0.64Ni_0.36@Fe₃NiN Core-Shell Nanostructure Encapsulated in N-Doped Carbon Nanotubes for Rechargeable Zinc-Air Batteries with Ultralong Cycle Stability. Acta Physico-Chimica Sinica, 2024, 40(2): 2304021-0. doi: 10.3866/PKU.WHXB202304021
7. [7]
  Jie XIE , Hongnan XU , Jianfeng LIAO , Ruoyu CHEN , Lin SUN , Zhong JIN . Nitrogen-doped 3D graphene-carbon nanotube network for efficient lithium storage. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1840-1849. doi: 10.11862/CJIC.20240216
8. [8]
  Zijuan LI , Xuan LÜ , Jiaojiao CHEN , Haiyang ZHAO , Shuo SUN , Zhiwu ZHANG , Jianlong ZHANG , Yanling MA , Jie LI , Zixian FENG , Jiahui LIU . Synthesis of visual fluorescence emission CdSe nanocrystals based on ligand regulation. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 308-320. doi: 10.11862/CJIC.20240138
9. [9]
  Jiajia Wang , Sibo Huang , Xijing Gao , Chaoxun Liu , Haibo Zhang . 光催化硝酸根还原产氨的综合实验设计. University Chemistry, 2025, 40(8): 241-248. doi: 10.12461/PKU.DXHX202410050
10. [10]
  Qijin Mo , Meifang Zhuo , Zhiyi Zhong , Chunfang Gan , Lixia Zhang . Research-Oriented Experimental Teaching in Chemistry Education at Normal University: Taking the Project of Recovering Silver Nitrate from Silver-Containing Waste as an Example. University Chemistry, 2024, 39(6): 201-206. doi: 10.3866/PKU.DXHX202310099
11. [11]
  Jiapei Zou , Junyang Zhang , Xuming Wu , Cong Wei , Simin Fang , Yuxi Wang . A Comprehensive Experiment Based on Electrocatalytic Nitrate Reduction into Ammonia: Synthesis, Characterization, Performance Exploration, and Applicable Design of Copper-based Catalysts. University Chemistry, 2024, 39(6): 373-382. doi: 10.3866/PKU.DXHX202312081
12. [12]
  Qin Hou , Jiayi Hou , Aiju Shi , Xingliang Xu , Yuanhong Zhang , Yijing Li , Juying Hou , Yanfang Wang . Preparation of Cuprous Iodide Coordination Polymer and Fluorescent Detection of Nitrite: A Comprehensive Chemical Design Experiment. University Chemistry, 2024, 39(8): 221-229. doi: 10.3866/PKU.DXHX202312056
13. [13]
  Yanxi LIU , Mengjia XU , Haonan CHEN , Quan LIU , Yuming ZHANG . A fluorescent-colorimetric probe for peroxynitrite-anion-imaging in living cells. Chinese Journal of Inorganic Chemistry, 2025, 41(6): 1112-1122. doi: 10.11862/CJIC.20240423
14. [14]
  Lubing Qin , Fang Sun , Meiyin Li , Hao Fan , Likai Wang , Qing Tang , Chundong Wang , Zhenghua Tang . Atomically Precise (AgPd)₂₇ Nanoclusters for Nitrate Electroreduction to NH₃: Modulating the Metal Core by a Ligand Induced Strategy. Acta Physico-Chimica Sinica, 2025, 41(1): 100008-0. doi: 10.3866/PKU.WHXB202403008
15. [15]
  Jingkun Yu , Xue Yong , Ang Cao , Siyu Lu . Bi-Layer Single Atom Catalysts Boosted Nitrate-to-Ammonia Electroreduction with High Activity and Selectivity. Acta Physico-Chimica Sinica, 2024, 40(6): 2307015-0. doi: 10.3866/PKU.WHXB202307015
16. [16]
  Shuhui Li , Jing Wang , Haitao Tang , Yingming Pan . A Taste Journey with Sauerkraut. University Chemistry, 2024, 39(9): 59-63. doi: 10.12461/PKU.DXHX202404061
17. [17]
  Linhan Tian , Changsheng Lu . Discussion on Sextuple Bonding in Diatomic Motifs of Chromium Family Elements. University Chemistry, 2024, 39(8): 395-402. doi: 10.3866/PKU.DXHX202401056
18. [18]
  Jiakun BAI , Ting XU , Lu ZHANG , Jiang PENG , Yuqiang LI , Junhui JIA . A red-emitting fluorescent probe with a large Stokes shift for selective detection of hypochlorous acid. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1095-1104. doi: 10.11862/CJIC.20240002
19. [19]
  Wenke ZHENG , Ce LIU , Wei CHEN , Hongshan KE , Fanlong ZENG , Yibo LEI , Anyang LI , Wenyuan WANG . Synthesis and bonding analysis of low-coordinate Fe and Cr complexes with ultra-bulky silylamino groups. Chinese Journal of Inorganic Chemistry, 2025, 41(7): 1285-1293. doi: 10.11862/CJIC.20250095
20. [20]
  Ruihu Wang , Aidang Lu . 新型铬(VI)检测试纸的制备及应用——介绍一个应用化学综合实验. University Chemistry, 2025, 40(8): 284-290. doi: 10.12461/PKU.DXHX202410102

Get Citation

PDF

XML

Metrics

PDF Downloads(1872)
Abstract views(3402)
HTML views(18)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return