Effect of rinse pH on the agglomeration degree and electrochemical performance of nano-scale β-Ni(OH)2

Li Zhao; Cui Fen Zhang; De Rui Zhou

Effect of rinse pH on the agglomeration degree and electrochemical performance of nano-scale β-Ni(OH)₂

Li Zhao^*
, Cui Fen Zhang
, De Rui Zhou

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Nano-scale nickel hydroxide was prepared by precipitate transformation method in the paper. Effect of rinse pH on the agglomeration degree and electrochemical performance of nano-scale Ni(OH)₂ was investigated. The measurement results of XRD and TEM indicate that the prepared nano-scale Ni(OH)₂ is β(II) -phase, the grain size is in the rang of 10-50nm, and rinse pH exerts a great influence on the agglomeration degree of nano-scale Ni(OH)₂. The agglomeration of material becomes very obvious when rinse pH=11, and the density of nano-scale Ni(OH)₂ is enhanced obviously. Cyclic voltammetry(CV) and simulate cells experiment show that nano-scale Ni(OH)₂ with suitable agglomeration degree have better electrochemical CV performance than those with ideal disperse Ni(OH) ₂ and micron Ni(OH)₂, and its proton diffusion coefficient is also the highest. It can elevate the discharge potential platform and prolongs discharge time, so the utilization ratio of Ni(OH)₂ is raised.

Original language	English
Pages (from-to)	619-622
Number of pages	4
Journal	Chinese Journal of Inorganic Chemistry
Volume	18
Issue number	6
State	Published - 2002

Keywords

Agglomeration
Nano material
Ni(OH)
Powder microelectrode

Cite this

@article{21a689cfb4f8424f86515d5d1665f2e9,

title = "Effect of rinse pH on the agglomeration degree and electrochemical performance of nano-scale β-Ni(OH)2",

abstract = "Nano-scale nickel hydroxide was prepared by precipitate transformation method in the paper. Effect of rinse pH on the agglomeration degree and electrochemical performance of nano-scale Ni(OH)2 was investigated. The measurement results of XRD and TEM indicate that the prepared nano-scale Ni(OH)2 is β(II) -phase, the grain size is in the rang of 10-50nm, and rinse pH exerts a great influence on the agglomeration degree of nano-scale Ni(OH)2. The agglomeration of material becomes very obvious when rinse pH=11, and the density of nano-scale Ni(OH)2 is enhanced obviously. Cyclic voltammetry(CV) and simulate cells experiment show that nano-scale Ni(OH)2 with suitable agglomeration degree have better electrochemical CV performance than those with ideal disperse Ni(OH) 2 and micron Ni(OH)2, and its proton diffusion coefficient is also the highest. It can elevate the discharge potential platform and prolongs discharge time, so the utilization ratio of Ni(OH)2 is raised.",

keywords = "Agglomeration, Nano material, Ni(OH), Powder microelectrode",

author = "Li Zhao and Zhang, \{Cui Fen\} and Zhou, \{De Rui\}",

year = "2002",

language = "英语",

volume = "18",

pages = "619--622",

journal = "Chinese Journal of Inorganic Chemistry",

issn = "1001-4861",

publisher = "Chinese Chemical Society",

number = "6",

}

TY - JOUR

T1 - Effect of rinse pH on the agglomeration degree and electrochemical performance of nano-scale β-Ni(OH)2

AU - Zhao, Li

AU - Zhang, Cui Fen

AU - Zhou, De Rui

PY - 2002

Y1 - 2002

N2 - Nano-scale nickel hydroxide was prepared by precipitate transformation method in the paper. Effect of rinse pH on the agglomeration degree and electrochemical performance of nano-scale Ni(OH)2 was investigated. The measurement results of XRD and TEM indicate that the prepared nano-scale Ni(OH)2 is β(II) -phase, the grain size is in the rang of 10-50nm, and rinse pH exerts a great influence on the agglomeration degree of nano-scale Ni(OH)2. The agglomeration of material becomes very obvious when rinse pH=11, and the density of nano-scale Ni(OH)2 is enhanced obviously. Cyclic voltammetry(CV) and simulate cells experiment show that nano-scale Ni(OH)2 with suitable agglomeration degree have better electrochemical CV performance than those with ideal disperse Ni(OH) 2 and micron Ni(OH)2, and its proton diffusion coefficient is also the highest. It can elevate the discharge potential platform and prolongs discharge time, so the utilization ratio of Ni(OH)2 is raised.

AB - Nano-scale nickel hydroxide was prepared by precipitate transformation method in the paper. Effect of rinse pH on the agglomeration degree and electrochemical performance of nano-scale Ni(OH)2 was investigated. The measurement results of XRD and TEM indicate that the prepared nano-scale Ni(OH)2 is β(II) -phase, the grain size is in the rang of 10-50nm, and rinse pH exerts a great influence on the agglomeration degree of nano-scale Ni(OH)2. The agglomeration of material becomes very obvious when rinse pH=11, and the density of nano-scale Ni(OH)2 is enhanced obviously. Cyclic voltammetry(CV) and simulate cells experiment show that nano-scale Ni(OH)2 with suitable agglomeration degree have better electrochemical CV performance than those with ideal disperse Ni(OH) 2 and micron Ni(OH)2, and its proton diffusion coefficient is also the highest. It can elevate the discharge potential platform and prolongs discharge time, so the utilization ratio of Ni(OH)2 is raised.

KW - Agglomeration

KW - Nano material

KW - Ni(OH)

KW - Powder microelectrode

UR - https://www.scopus.com/pages/publications/20044369556

M3 - 文章

AN - SCOPUS:20044369556

SN - 1001-4861

VL - 18

SP - 619

EP - 622

JO - Chinese Journal of Inorganic Chemistry

JF - Chinese Journal of Inorganic Chemistry

IS - 6

ER -

Effect of rinse pH on the agglomeration degree and electrochemical performance of nano-scale β-Ni(OH)₂

Abstract

Keywords

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