Sulfur-Mediated Synthesis of Spherical Nickel Nanoparticles in a Chemical Vapor Reactor

Yong-Su Jo; Mansurbek Abdullaev; Gwang-Hwa Jin; Bhabani Sankar Swain; Byongpil Lee; Hyung-Sub Eom; Seok-Hong Min; Seok Ki Kim; Young Keun Kim; Seung-Min Yang

doi:10.1021/acsomega.2c05281

Sulfur-Mediated Synthesis of Spherical Nickel Nanoparticles in a Chemical Vapor Reactor

ACS Omega. 2022 Nov 26;7(48):43958-43964. doi: 10.1021/acsomega.2c05281. eCollection 2022 Dec 6.

Authors

Yong-Su Jo^{1

2}, Mansurbek Abdullaev³, Gwang-Hwa Jin^{1

2}, Bhabani Sankar Swain¹, Byongpil Lee⁴, Hyung-Sub Eom⁴, Seok-Hong Min⁵, Seok Ki Kim⁶, Young Keun Kim², Seung-Min Yang¹

Affiliations

¹ Functional Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung, Gangwon-do25440, Republic of Korea.
² Department of Materials Science and Engineering, Korea University, Seoul02841, Republic of Korea.
³ Korea Research Institute of Chemical Technology, Daejeon34114, Republic of Korea.
⁴ Rare Metals Cell Group, Research Institute of Industrial Science & Technology, Pohang, Gyeongsangbukdo37673, Republic of Korea.
⁵ Korea Institute of Industrial Technology Interdisciplinary Program, Gangneung-Wonju National University, Gangneung, Gangwon-do25457, Republic of Korea.
⁶ Department of Chemical Engineering, Ajou University, Suwon, Gyeonggi-do16499, Republic of Korea.

Abstract

In this study, we investigated the effect of the sulfur content in the NiCl₂ precursor on the shape of nickel nanoparticles (Ni-NPs) prepared by chemical vapor synthesis. We obtained spherical Ni-NPs when using anhydrous NiCl₂ mixed with NiSO₄ or Na₂SO₄ with a molar ratio of 0.002 as precursors without changing any other process parameters whereas faceted Ni-NPs when using only anhydrous NiCl₂ as a precursor. First-principles calculations supported experimental results, which showed that NiSO₄-mixed NiCl₂ and Na₂SO₄-mixed NiCl₂ precursors favored the growth of spherical NPs.