| Graphite-Controlled Fabrication of Ultrathin WSe2 Nanosheets with Tower-Like Structure and Their Tribological Properties | |
| Department | 固体润滑国家重点实验室 |
Cao KS(曹克生)1,2; Li ZS(李长生)1; Cheng YH(程永华)2; Tang H(唐华)1; Yan FY(阎逢元)3 ; Song HJ(宋浩杰)1; Yang XF(杨小飞)1
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| 2012 | |
| Source Publication | Tribology Transactions
 |
| ISSN | 1040-2004 |
| Volume | 55Issue:3Pages:297-301 |
| Abstract | Uniform hexagonal tungsten diselenide (WSe2) nanosheets, with thicknesses as small as 10 nm and diameters as small as 100 nm, self-assembled into tower-like arrays, were successfully synthesized by the solid-state reaction of the elements W and Se in the presence of graphite in a sealed stainless steel reactor at 800°C. However, scattered submicrometer WSe2 sheets, 250 nm thick and 1–3 μm in diameter, were obtained in the absence of graphite. Subsequently, the formation mechanism of this assembled structure was proposed. Furthermore, the lubricity of as-fabricated arrays added into paraffin in steel–steel interaction was investigated by a ball-on-disc tribometer, as compared to that of commercial graphite and as-obtained submicrometer WSe2 sheets, respectively. The results showed that the addition of small amounts (0.5 wt%) of as-fabricated arrays greatly improved the friction reduction and antiwear properties of paraffin and did well then the same amount of commercial graphite and submicrometer WSe2 sheets, suggesting that as-fabricated arrays are an excellent lubricating material. Therefore, this process provides a strategy for the large-scale, cost-effective, and environmental friendly preparation and tribological application of small-sized laminar transition-metal dichalcogenide with good lubricity. |
| Keyword | Tungsten Diselenide Graphite Self-assembly Nanosheets Solid-state Reaction |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1080/10402004.2011.654180 |
| Funding Organization | the Open Project of the State Key Laboratory of Solid Lubrication of Lanzhou Institute of Chemical Physics of the Chinese Academy of Sciences (No. 1008);the Jiangsu Provincial Natural Science Foundation of China (No. SBK201021273) |
| Indexed By | SCI |
| If | 0.914 |
| Language | 英语 |
| Funding Project | 功能防护材料组 |
| compositor | 第三作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3511 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Affiliation | 1.Jiangsu Univ, Jiangsu Key Lab Mat Tribol, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China 2.Pingdingshan Univ, Sch Chem & Engn, Pingdingshan 467000, Peoples R China 3.Chinese Acad Sci, State Key Lab Solid Lubricat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Cao KS,Li ZS,Cheng YH,et al. Graphite-Controlled Fabrication of Ultrathin WSe2 Nanosheets with Tower-Like Structure and Their Tribological Properties[J]. Tribology Transactions,2012,55(3):297-301. |
| APA | Cao KS.,Li ZS.,Cheng YH.,Tang H.,Yan FY.,...&Yang XF.(2012).Graphite-Controlled Fabrication of Ultrathin WSe2 Nanosheets with Tower-Like Structure and Their Tribological Properties.Tribology Transactions,55(3),297-301. |
| MLA | Cao KS,et al."Graphite-Controlled Fabrication of Ultrathin WSe2 Nanosheets with Tower-Like Structure and Their Tribological Properties".Tribology Transactions 55.3(2012):297-301. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 297-301.PDF（529KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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