Transition metal dichalcogenide materials: Solid-state reaction synthesis of nanocrystalline nickel disulfide

被引：36

作者：

An, Gaojun ^{[1
,2
]}

Liu, Chenguang ^{[1
,2
]}

Hou, Yuandong ^{[1
,2
]}

Zhang, Xiaoling ^{[3
]}

Liu, Yunqi ^{[1
,2
]}

机构：

[1] China Univ Petr, China Natl Petr Corp, State Key Lab Heavy Oil Proc, Dongying 257061, Peoples R China

[2] China Univ Petr, China Natl Petr Corp, Key Lab Catalysis, Dongying 257061, Peoples R China

[3] Qingdao Univ, Coll Chem Engn, Qingdao 266071, Peoples R China

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 17-18期

关键词：

nickel disulfide; nanomaterials; solid-state reaction; basic nickel carbonate; TEM;

D O I：

10.1016/j.matlet.2008.01.005

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

One novel and convenient synthetic approach has been proposed to prepare the transition metal dichalcogenide material of nanocrystalline nickel disulfide (NiS2) by the solid-state reaction between basic nickel carbonate and elemental sulfur at 400 degrees C. The as-synthesized product is characterized by X-ray powder Diffraction (XRD), Transmission Electron Microscopy (TEM), X-ray Photoelectron Spectroscopy (XPS) and Low-temperature N-2 Adsorption (BET method). TEM micrographs show that the as-synthesized NiS2 has nanostructures with the average particle size of 48 nm. The sulfur-to-nickel ratio of the sample determined by XPS is 1.70, which indicates that the surface of the sample is rich in Ni4+. The probable formation mechanism of nanocrystalline NiS2 is discussed in this manuscript. (C) 2008 Elsevier B.V. All fights reserved.

引用

页码：2643 / 2646

页数：4

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