YEŞİL YÖNTEM İLE KÜRESEL Ni1/3Co1/3Mn1/3CO3 PARÇACIKLARIN SENTEZİ

Abstract

Bu çalışmada, tek tip, küre şeklinde bir [Ni1/3Co1/3Mn1/3]CO3 nanopartiküllerinin basit ve çevreye duyarlı sentez yöntemiyle üretilmesini çalışılmıştır. Ni-Co-Mn karbonat partikülü üç aşamada hazırlandı, (1), birincil sülfat oluşturan Na2CO3 ile metal sülfat tuzlarının karıştırılması, (2) ekstra (NH4)2CO3 ilave edilmesi reaksiyonun gerçekleşmesine neden olan kimyasal, (3) hidrotermal metodu ile [Ni1/3Co1/3Mn1/3]CO3 partiküllerinin kristallenmesi ve küresel şeklinin oluşması. Mevcut malzemenin morfolojisi ve kristalin yapısı, Enerji-dağıtıcı X-ışını Spektroskopisi (EDS), Taramalı Elektron Mikroskopik (SEM) ve X-ışını kırınımı (XRD) ve ile karakterize edildi. Analiz sonuçları, parçacığın küresel yapı mekanizmasının, metal tuzlarının bir çözünme-yeniden kristalizasyon işlemine ve (NH4)2CO3 ayrışma işlemine dayandığını göstermiştir. Bu makelde yapılan araştırmalar ile, lityum iyon pilleri için katot materyalleri hazırlamanmasında çevreye duyarlı hidrotermal yönteminin kullanılması bu konuda yeni yaklaşımlar açacaktır.

Keywords

• Nanopartikül
• Hidrotermal
• Ni-Co-Mn karbonat
• Ni1/3Co1/3Mn1/3CO3

GREEN SYNTHESIS OF SPHERICAL-SHAPED Ni1/3Co1/3Mn1/3CO3 PARTICLES

Abstract

In this study, we reported a simple and green manufacturing of a uniform, sphere-shaped [Ni1/3Co1/3Mn1/3]CO3 nanoparticles, which can be considered as a precursor for Li[Ni1/3Co1/3Mn1/3]O2 . Ni-Co-Mn carbonate particle was prepared via three steps, (1), the mixing metal sulfate salts with Na2CO3 which, formed the primary precipitation, (2) the addition of (NH4)2CO3, responsible for the increasing conversion rate, (3) the hydrothermal treatment lead to existing of recrystallization and spherical shape of [Ni1/3Co1/3Mn1/3]CO3 particles. The morphology and crystalline structure of the present material is characterized by Energy-dispersive X-ray Spectroscopy (EDS), Scanning Electron Microscopic (SEM) and X-ray diffraction (XRD). Analysis outcomes indicated that the particle's growth mechanism of spherical composition is depend on a dissolution-recrystallization process of metal salts and (NH4)2CO3 dissociation process. This study opens a green avenue to prepare cathode materials in the lithium-ion battery application.

Keywords

• Nanoparticle
• Hydrothermal Treatment
• Ni-Co-Mn Carbonate
• Ni1/3Co1/3Mn1/3CO3

Supporting Institution

This work was supported by Virginia Commonwealth University, Department of Chemical and Life Science Engineering

Thanks

Thanks to Prof. Dr. Ram B. Gupta for his endless support.

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