Dynamic surface wettability of three-dimensional graphene foam

Wen Bin Huang; Guang Long Wang; Feng Qi Gao; Zhong Tao Qiao; Gang Wang; Min Jiang Chen; Li Tao; Ya Deng; Lian Feng Sun

doi:10.1088/1674-1056/23/4/046802

Dynamic surface wettability of three-dimensional graphene foam

Wen Bin Huang, Guang Long Wang, Feng Qi Gao, Zhong Tao Qiao, Gang Wang, Min Jiang Chen, Li Tao, Ya Deng, Lian Feng Sun^*

^*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

In this work, three-dimensional graphene foams (GFs) are synthesized and characterized by scanning electron microscope (SEM) and Raman spectroscopy. The SEM images indicate that after the growth of graphene, the graphene covers the surface of nickel (Ni) foam uniformly. Raman spectra show that the percentages of monolayer, bilayer, trilayer, and multilayer graphenes are ∼ 58%, ∼ 32%, ∼ 8%, and ∼ 2%, respectively. The contact angle (CA) (∼ 12°) of water droplet (3 μL) on GF is found to be larger than that on Ni foam (∼ 107°), indicating that graphenes have changed the surface wettability of the Ni foam. Meanwhile, the dynamic characteristics of CA of water droplet on GF are different from those on Ni foam. The mechanisms for different behaviors are discussed, which are attributed to volatilization and seepage of water droplets.

Original language	English
Article number	046802
Journal	Chinese Physics B
Volume	23
Issue number	4
DOIs	https://doi.org/10.1088/1674-1056/23/4/046802
Publication status	Published - Apr 2014
Externally published	Yes

Keywords

CVD
contact angle
graphene foam
surface wettability

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10.1088/1674-1056/23/4/046802

Cite this

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title = "Dynamic surface wettability of three-dimensional graphene foam",

abstract = "In this work, three-dimensional graphene foams (GFs) are synthesized and characterized by scanning electron microscope (SEM) and Raman spectroscopy. The SEM images indicate that after the growth of graphene, the graphene covers the surface of nickel (Ni) foam uniformly. Raman spectra show that the percentages of monolayer, bilayer, trilayer, and multilayer graphenes are ∼ 58%, ∼ 32%, ∼ 8%, and ∼ 2%, respectively. The contact angle (CA) (∼ 12°) of water droplet (3 μL) on GF is found to be larger than that on Ni foam (∼ 107°), indicating that graphenes have changed the surface wettability of the Ni foam. Meanwhile, the dynamic characteristics of CA of water droplet on GF are different from those on Ni foam. The mechanisms for different behaviors are discussed, which are attributed to volatilization and seepage of water droplets.",

keywords = "CVD, contact angle, graphene foam, surface wettability",

author = "Huang, {Wen Bin} and Wang, {Guang Long} and Gao, {Feng Qi} and Qiao, {Zhong Tao} and Gang Wang and Chen, {Min Jiang} and Li Tao and Ya Deng and Sun, {Lian Feng}",

year = "2014",

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doi = "10.1088/1674-1056/23/4/046802",

language = "English",

volume = "23",

journal = "Chinese Physics B",

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TY - JOUR

T1 - Dynamic surface wettability of three-dimensional graphene foam

AU - Huang, Wen Bin

AU - Wang, Guang Long

AU - Gao, Feng Qi

AU - Qiao, Zhong Tao

AU - Wang, Gang

AU - Chen, Min Jiang

AU - Tao, Li

AU - Deng, Ya

AU - Sun, Lian Feng

PY - 2014/4

Y1 - 2014/4

N2 - In this work, three-dimensional graphene foams (GFs) are synthesized and characterized by scanning electron microscope (SEM) and Raman spectroscopy. The SEM images indicate that after the growth of graphene, the graphene covers the surface of nickel (Ni) foam uniformly. Raman spectra show that the percentages of monolayer, bilayer, trilayer, and multilayer graphenes are ∼ 58%, ∼ 32%, ∼ 8%, and ∼ 2%, respectively. The contact angle (CA) (∼ 12°) of water droplet (3 μL) on GF is found to be larger than that on Ni foam (∼ 107°), indicating that graphenes have changed the surface wettability of the Ni foam. Meanwhile, the dynamic characteristics of CA of water droplet on GF are different from those on Ni foam. The mechanisms for different behaviors are discussed, which are attributed to volatilization and seepage of water droplets.

AB - In this work, three-dimensional graphene foams (GFs) are synthesized and characterized by scanning electron microscope (SEM) and Raman spectroscopy. The SEM images indicate that after the growth of graphene, the graphene covers the surface of nickel (Ni) foam uniformly. Raman spectra show that the percentages of monolayer, bilayer, trilayer, and multilayer graphenes are ∼ 58%, ∼ 32%, ∼ 8%, and ∼ 2%, respectively. The contact angle (CA) (∼ 12°) of water droplet (3 μL) on GF is found to be larger than that on Ni foam (∼ 107°), indicating that graphenes have changed the surface wettability of the Ni foam. Meanwhile, the dynamic characteristics of CA of water droplet on GF are different from those on Ni foam. The mechanisms for different behaviors are discussed, which are attributed to volatilization and seepage of water droplets.

KW - CVD

KW - contact angle

KW - graphene foam

KW - surface wettability

UR - http://www.scopus.com/inward/record.url?scp=84899574301&partnerID=8YFLogxK

U2 - 10.1088/1674-1056/23/4/046802

DO - 10.1088/1674-1056/23/4/046802

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SN - 1674-1056

VL - 23

JO - Chinese Physics B

JF - Chinese Physics B

IS - 4

M1 - 046802

ER -

Dynamic surface wettability of three-dimensional graphene foam

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Keywords

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