Analysis of the acid, base and air oxidized carbon microspheres synthesized in a single step from waste engine oil

被引：9

作者：

Datta, Abheek ^{[1
]}

Sadhu, Anustup ^{[1
]}

Sen, Bhaskar ^{[1
]}

Kaur, Manpreet ^{[1
]}

Sharma, Rajhans ^{[1
]}

Das, Santosh Ch ^{[1
]}

Bhattacharyya, Sayan ^{[1
]}

机构：

[1] Indian Inst Sci Educ & Res, Dept Chem Sci, Nadia 741252, WB, India

来源：

CORROSION SCIENCE | 2013年 / 73卷

关键词：

Weight loss; SEM; IR spectroscopy; Raman spectroscopy; Oxidation; FRICTION; NANOPARTICLES; OXIDATION; PURE;

D O I：

10.1016/j.corsci.2013.04.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Carbon microsphere (C-mu S) ball bearings are prone to corrode after long exposure to oxidizing environments. similar to 4.2 mu m diameter C-mu Ss synthesized from waste engine oil (at 600 and 900 degrees C) by dry autoclaving, were exposed to nitric acid (30 and 60 vol.%), piranha (H2SO4:H2O2 60:40 and 90:10), base (NH4OH:H2O2 15:30 and 30:15) and air oxidation at 300 and 450 degrees C for 12-48 h. The oxidation processes were monitored by weight loss analyses, scanning electron microscopy, X-ray diffraction, Raman spectroscopy, chemical functionalization and electrical conductivity measurements. Crystallinity and higher graphitic content in the C-mu Ss results in better resistance to oxidation. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：356 / 364

页数：9

共 31 条

[1] Preparation and characterization of active carbon spheres prepared by chemical activation [J].