東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Size control and characterization of...

San Jose State University.

Linked to FindBook

Google Book

Amazon

博客來

Size control and characterization of colloidal magnetic cobalt nanoparticles.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Size control and characterization of colloidal magnetic cobalt nanoparticles./
Author:	Singh, Abhishek.
Description:	70 p.
Notes:	Adviser: Gregory Young.
Contained By:	Masters Abstracts International47-02.
Subject:	Engineering, Chemical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1459716
ISBN:	9780549891314

Size control and characterization of colloidal magnetic cobalt nanoparticles.
Singh, Abhishek.

Size control and characterization of colloidal magnetic cobalt nanoparticles. - 70 p.

Adviser: Gregory Young.

Thesis (M.S.)--San Jose State University, 2008.

The overall goals of this research were to synthesize magnetic cobalt nanoparticles and characterize their structural and magnetic properties. Cobalt nanoparticles were synthesized via high temperature reduction of cobalt chloride utilizing two different surfactants, tributylphosphine and trioctylphosphine, and varying the surfactant-to-reagent molar concentration for each. X-ray diffraction results indicate that each synthesis condition yielded nanoparticles with an &egr;-cobalt crystal structure, a resemblance to the beta-manganese structure. Transmission electron micrographs indicate the formation of discrete hexagonal networks among the particles with inter-particle spacing of 2--5 nm. Sizing analysis found that utilizing a bulkier surfactant yields smaller mean particle size. Furthermore, utilizing a surfactant at a higher surfactant-to-reagent molar ratio also yields a smaller mean particle size with a tighter distribution. Normalized vibrating sample magnetometer results indicate synthesized cobalt nanoparticles exhibit ferromagnetic behavior at room temperature and increasing coercivity with mean particle size.

ISBN: 9780549891314Subjects--Topical Terms:

1018531
Engineering, Chemical.

Size control and characterization of colloidal magnetic cobalt nanoparticles.
LDR:01991nmm 2200277 a 45 001 873985
005 20100823
008 100823s2008 eng d
020 $a 9780549891314
035 $a (UMI)AAI1459716
035 $a AAI1459716
040 $a UMI $c UMI
100 1 $a Singh, Abhishek. $3 901091
245 1 0 $a Size control and characterization of colloidal magnetic cobalt nanoparticles.
300 $a 70 p.
500 $a Adviser: Gregory Young.
500 $a Source: Masters Abstracts International, Volume: 47-02, page: 1165.
502 $a Thesis (M.S.)--San Jose State University, 2008.
520 $a The overall goals of this research were to synthesize magnetic cobalt nanoparticles and characterize their structural and magnetic properties. Cobalt nanoparticles were synthesized via high temperature reduction of cobalt chloride utilizing two different surfactants, tributylphosphine and trioctylphosphine, and varying the surfactant-to-reagent molar concentration for each. X-ray diffraction results indicate that each synthesis condition yielded nanoparticles with an &egr;-cobalt crystal structure, a resemblance to the beta-manganese structure. Transmission electron micrographs indicate the formation of discrete hexagonal networks among the particles with inter-particle spacing of 2--5 nm. Sizing analysis found that utilizing a bulkier surfactant yields smaller mean particle size. Furthermore, utilizing a surfactant at a higher surfactant-to-reagent molar ratio also yields a smaller mean particle size with a tighter distribution. Normalized vibrating sample magnetometer results indicate synthesized cobalt nanoparticles exhibit ferromagnetic behavior at room temperature and increasing coercivity with mean particle size.
590 $a School code: 6265.
650 4 $a Engineering, Chemical. $3 1018531
650 4 $a Engineering, Materials Science. $3 1017759
690 $a 0542
690 $a 0794
710 2 0 $a San Jose State University. $3 1020800
773 0 $t Masters Abstracts International $g 47-02.
790 $a 6265
790 1 0 $a Young, Gregory, $e advisor
791 $a M.S.
792 $a 2008
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1459716