Apatite-Graphene Interface Channel-Aided Rapid and Selective H2Permeation

Radovan Kukobat; Motomu Sakai; Ayumi Furuse; Hayato Otsuka; Hideki Tanaka; Takuya Hayashi; Masahiko Matsukata; Katsumi Kaneko

doi:10.1021/acs.jpcc.1c08928

Apatite-Graphene Interface Channel-Aided Rapid and Selective H₂Permeation

Radovan Kukobat, Motomu Sakai, Ayumi Furuse, Hayato Otsuka, Hideki Tanaka, Takuya Hayashi, Masahiko Matsukata, Katsumi Kaneko^*

^*Corresponding author for this work

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

Abstract

Designing efficient membranes for gas separation is a challenge for future clean energy generation. Here we report a graphene-wrapped hydroxyapatite (G-HAP) membrane for efficient H₂separation from CH₄and light hydrocarbons. The pores are prepared by graphene-wrapping HAP crystals containing surface grooves along the c-axis. The grooves form 1D channels at the graphene-HAP interface. The G-HAP membrane achieves a permeance of 5.5 × 10^-7mol m^-2s^-1Pa^-1(2.5 × 10⁵barrer) and selectivity of 40.0 for H₂/CH₄. The G-HAP membrane created by graphene-wrapping has channels derived from the surface groove structure that are responsible for the gas separation, as suggested by molecular dynamics simulations. The proposed graphene-wrapping approach is promising for the development of membranes for efficient H₂separation.

Original language	English
Pages (from-to)	3653-3660
Number of pages	8
Journal	Journal of Physical Chemistry C
Volume	126
Issue number	7
DOIs	https://doi.org/10.1021/acs.jpcc.1c08928
Publication status	Published - 2022 Feb 24

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/acs.jpcc.1c08928

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title = "Apatite-Graphene Interface Channel-Aided Rapid and Selective H2Permeation",

abstract = "Designing efficient membranes for gas separation is a challenge for future clean energy generation. Here we report a graphene-wrapped hydroxyapatite (G-HAP) membrane for efficient H2separation from CH4and light hydrocarbons. The pores are prepared by graphene-wrapping HAP crystals containing surface grooves along the c-axis. The grooves form 1D channels at the graphene-HAP interface. The G-HAP membrane achieves a permeance of 5.5 × 10-7mol m-2s-1Pa-1(2.5 × 105barrer) and selectivity of 40.0 for H2/CH4. The G-HAP membrane created by graphene-wrapping has channels derived from the surface groove structure that are responsible for the gas separation, as suggested by molecular dynamics simulations. The proposed graphene-wrapping approach is promising for the development of membranes for efficient H2separation.",

author = "Radovan Kukobat and Motomu Sakai and Ayumi Furuse and Hayato Otsuka and Hideki Tanaka and Takuya Hayashi and Masahiko Matsukata and Katsumi Kaneko",

note = "Funding Information: K.K. appreciates an honorable invitation to contribute to the special issue dedicated to Dr. Marie Paule Pileni. This work was supported by the Japan Science Technology Agency (JST) CREST Project “Creation of Innovative Functional Materials with Advanced Properties by Hyper-Nanospace Design” and the JST-OPERA Project (Grant JPMJOP1722). R.K. and H.T. were supported by TAKAGI Co., Ltd. Publisher Copyright: {\textcopyright} 2022 American Chemical Society. All rights reserved.",

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AU - Sakai, Motomu

AU - Furuse, Ayumi

AU - Otsuka, Hayato

AU - Tanaka, Hideki

AU - Hayashi, Takuya

AU - Matsukata, Masahiko

AU - Kaneko, Katsumi

N1 - Funding Information: K.K. appreciates an honorable invitation to contribute to the special issue dedicated to Dr. Marie Paule Pileni. This work was supported by the Japan Science Technology Agency (JST) CREST Project “Creation of Innovative Functional Materials with Advanced Properties by Hyper-Nanospace Design” and the JST-OPERA Project (Grant JPMJOP1722). R.K. and H.T. were supported by TAKAGI Co., Ltd. Publisher Copyright: © 2022 American Chemical Society. All rights reserved.

PY - 2022/2/24

Y1 - 2022/2/24

N2 - Designing efficient membranes for gas separation is a challenge for future clean energy generation. Here we report a graphene-wrapped hydroxyapatite (G-HAP) membrane for efficient H2separation from CH4and light hydrocarbons. The pores are prepared by graphene-wrapping HAP crystals containing surface grooves along the c-axis. The grooves form 1D channels at the graphene-HAP interface. The G-HAP membrane achieves a permeance of 5.5 × 10-7mol m-2s-1Pa-1(2.5 × 105barrer) and selectivity of 40.0 for H2/CH4. The G-HAP membrane created by graphene-wrapping has channels derived from the surface groove structure that are responsible for the gas separation, as suggested by molecular dynamics simulations. The proposed graphene-wrapping approach is promising for the development of membranes for efficient H2separation.

AB - Designing efficient membranes for gas separation is a challenge for future clean energy generation. Here we report a graphene-wrapped hydroxyapatite (G-HAP) membrane for efficient H2separation from CH4and light hydrocarbons. The pores are prepared by graphene-wrapping HAP crystals containing surface grooves along the c-axis. The grooves form 1D channels at the graphene-HAP interface. The G-HAP membrane achieves a permeance of 5.5 × 10-7mol m-2s-1Pa-1(2.5 × 105barrer) and selectivity of 40.0 for H2/CH4. The G-HAP membrane created by graphene-wrapping has channels derived from the surface groove structure that are responsible for the gas separation, as suggested by molecular dynamics simulations. The proposed graphene-wrapping approach is promising for the development of membranes for efficient H2separation.

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Apatite-Graphene Interface Channel-Aided Rapid and Selective H₂Permeation

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