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„µ¦´ŠÁ‡¦µ³®rűצÁš°¦r ¤´¨µ¦ž¦³„°ªµÁœÁ—¸¥¤°°„ÅŽ—r
Hydrothermal Synthesis of Vanadium Oxide Compound
»¦´¥ ‡Š¼1 ¨³®· ¦·®´ š¥µ Á¡¦¤´ÉŠ 2*
Surachai Kongchoo and Hirihattaya Phetmung
š‡´—¥n°
„µ¦´ ŠÁ‡¦µ³®r űצÁš°¦r¤´¨µ¦ž¦³„°ªµÁœÁ—¸¥¤°°„ÅŽ—r (NH4)a ZnbVc Od (µ¦ž¦³„° 1) Ĝ
°´˜¦µnªœ 2 : 1 : 200 mmol °Š °¤Ã¤Áœ¸¥¤ Á¤˜µªµœµÁ—˜ (ammonium metavanadate ; NH 4VO 3) Ž· Š‡r°³Ž¸Á˜˜
ŗűÁ—¦˜ (zinc acetate dihydrate ; Zn(CH3COO)2˜2H2O) ¨³œÊε š¸É°»–®£¼¤· 180 oC Áž}œÁª¨µ 72 ´ÉªÃ¤Š Ÿ¨‹µ„
¢¼ Á¦¸¥š¦µœr¢°¦r¤Áž„ڦâؤ·š¦¸ ¡ªnµ Áž„˜¦´¤ °Š FTIR š¸É ‡ªµ¤¥µª‡¨ºÉœ 1411 cm-1 ‹³¤¸®¤¼n ¢{Š„r´œ N-H
(bending) ž¦µ„’°¥¼n ¨³š¸É‡ªµ¤¥µª‡¨ºÉœ 996 cm-1 ¨³ 893 cm-1 ¤¸®¤¼n ¢{Š„r´œ °Š vanadyl (V5+=O) Ž¹ÉŠ°—‡¨o°Š
„´„¦µ¢ TGA š¸É—Š„µ¦¼ Á¸¥œÊε °¤Ã¤Áœ¸¥ ¨³ªµÁœÁ—¸¥¤°°„ÅŽ—r ¨³Ÿ¨‹µ„„µ¦Á¨¸Ê ¥ªÁœ¦´Š¸Á°„ŽrœŸ¨¹„
ŸŠ Ž¹ÉŠ¦»žÅ—oªnµÃ‡¦Š¦o µŠ °Šµ¦œnµ‹³Áž} œ (NH4)a ZnbVc Od „µ¦«¹„¬µ¨´„¬–³¡ºÊœŸ·ª—oª¥ SEM ¡ªnµ¤¸¨´„¬–³
‡¨o µ¥¦¼ž—°„Ťo¨³¤¸Áo œÄ¥
‡ÎµÎµ‡´ : Ž·Š‡rªµÁœÁ—¸¥¤°°„ÅŽ—r ˜Á˜°¦¸É š»˜·¥£¼¤· ´ÊªÅ¢¢jµÂ‡Ãš— ÁoœÄ¥œµÃœ ŤÇ¦Ž¸šÁ®¤º°œ—°„„»®¨µ
Abstract
The hydrothermal synthesis of new vanadium oxide compound, so called compound (NH 4)a ZnbVcOd (1).
has been performed using the 2:1:200 mole ratio of ammonium metavanadate (NH 4VO 3), zinc acetate dihydrate
[Zn(CH 3COO)2˜2H 2O] and water at 180 oC for 72 h. The characterizations are done by FTIR, XRD, TGA and
SEM. The FTIR spectra are band observed between 996 cm-1 and 893 cm -1 was attributed to the symmetric
stretching vibration mode of the vanadyl group (V5+=O) and 1411 cm -1 was related to the N-H bending. Which is
TGA spectrum are corresponding to the weight loss of water, ammonium and vanadium oxide. The PXRD
spectra confirm to structure of compound. SEM morphology illustrated the rose-like microsheet structure and
nanofiber.
Keywords : Zinc vanadium oxide, Secondary battery, Cathode electrode, Nanofiber, Rose-like microsheet
1 œ· ·˜ž¦·µÃš £µ‡ª·µÁ‡¤¸ ‡–³ª·š¥µ«µ˜¦r ¤®µª·š¥µ¨´¥š´„¬·– ¡´š¨»Š 93110
Master’s Degree Student, Department of Chemistry, Faculty of Science, Thaksin University, Phatthalung 93110
2 Ÿ«. —¦. £µ‡ª·µÁ‡¤¸ ‡–³ª·š¥µ«µ˜¦r ¤®µª· š¥µ¨´¥š´„¬·– ¡´š¨»Š 93110
Assist. Prof. Dr., Department of Chemistry, Faculty of Science, Thaksin University, Phatthalung, 93110
* Corresponding author : Ú¦«´¡šr/Ú¦µ¦ 0 8318 3348 5 E-mail :taya@tsu.ac.th