Facile production of highly porous graphitic nanosheets for enhanced hydrogen storage

Jong Hoon Lee; Jong Woo Kim; Seul Yi Lee; Soo Jin Park

doi:10.1016/j.cej.2024.149988

Facile production of highly porous graphitic nanosheets for enhanced hydrogen storage

Jong Hoon Lee
, Jong Woo Kim
, Seul Yi Lee
, Soo Jin Park

Inha University

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

Abstract

Graphitic nanosheets as a two-dimensional material are renowned an ideal candidate for efficient adsorbents due to their rapid adsorption kinetics and superior capacity. This study presents a facile method to develop highly porous graphitic nanosheets (PGNs) from converted carbon blacks (CBs) for hydrogen (H₂) storage. The CBs, containing interconnected amorphous and graphitic domains, allows the introduction of numerous H₂-friendly adsorption sites during PGNs production. The resulting PGNs show large sheets of 3–5 μm and thicknesses of ∼ 2.5 nm, boasting a remarkable specific surface area of 2,644 m²/g with significant total H₂ storage capacities of 11.5 wt% (3.8 kWh kg⁻¹ @ 77 K) and 2.6 wt% (0.87 kWh kg⁻¹, @ 298 K) at 60 bar. This research introduces a promising strategy to enhance PGNs's H₂ storage capabilities, paving the way for diverse energy-related fields.

Original language	English
Article number	149988
Journal	Chemical Engineering Journal
Volume	486
DOIs	https://doi.org/10.1016/j.cej.2024.149988
Publication status	Published - 15 Apr 2024
Externally published	Yes

Keywords

2D porous graphitic nanosheets
Ball-milling
Carbon blacks
Chemical activation
Hydrogen storage

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10.1016/j.cej.2024.149988

Cite this

@article{d647e4729701421193aab22ba8630cf0,

title = "Facile production of highly porous graphitic nanosheets for enhanced hydrogen storage",

abstract = "Graphitic nanosheets as a two-dimensional material are renowned an ideal candidate for efficient adsorbents due to their rapid adsorption kinetics and superior capacity. This study presents a facile method to develop highly porous graphitic nanosheets (PGNs) from converted carbon blacks (CBs) for hydrogen (H2) storage. The CBs, containing interconnected amorphous and graphitic domains, allows the introduction of numerous H2-friendly adsorption sites during PGNs production. The resulting PGNs show large sheets of 3–5 μm and thicknesses of ∼ 2.5 nm, boasting a remarkable specific surface area of 2,644 m2/g with significant total H2 storage capacities of 11.5 wt\% (3.8 kWh kg−1 @ 77 K) and 2.6 wt\% (0.87 kWh kg−1, @ 298 K) at 60 bar. This research introduces a promising strategy to enhance PGNs's H2 storage capabilities, paving the way for diverse energy-related fields.",

keywords = "2D porous graphitic nanosheets, Ball-milling, Carbon blacks, Chemical activation, Hydrogen storage",

author = "Lee, \{Jong Hoon\} and Kim, \{Jong Woo\} and Lee, \{Seul Yi\} and Park, \{Soo Jin\}",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

year = "2024",

month = apr,

day = "15",

doi = "10.1016/j.cej.2024.149988",

language = "English",

volume = "486",

journal = "Chemical Engineering Journal",

issn = "1385-8947",

}

TY - JOUR

T1 - Facile production of highly porous graphitic nanosheets for enhanced hydrogen storage

AU - Lee, Jong Hoon

AU - Kim, Jong Woo

AU - Lee, Seul Yi

AU - Park, Soo Jin

PY - 2024/4/15

Y1 - 2024/4/15

N2 - Graphitic nanosheets as a two-dimensional material are renowned an ideal candidate for efficient adsorbents due to their rapid adsorption kinetics and superior capacity. This study presents a facile method to develop highly porous graphitic nanosheets (PGNs) from converted carbon blacks (CBs) for hydrogen (H2) storage. The CBs, containing interconnected amorphous and graphitic domains, allows the introduction of numerous H2-friendly adsorption sites during PGNs production. The resulting PGNs show large sheets of 3–5 μm and thicknesses of ∼ 2.5 nm, boasting a remarkable specific surface area of 2,644 m2/g with significant total H2 storage capacities of 11.5 wt% (3.8 kWh kg−1 @ 77 K) and 2.6 wt% (0.87 kWh kg−1, @ 298 K) at 60 bar. This research introduces a promising strategy to enhance PGNs's H2 storage capabilities, paving the way for diverse energy-related fields.

AB - Graphitic nanosheets as a two-dimensional material are renowned an ideal candidate for efficient adsorbents due to their rapid adsorption kinetics and superior capacity. This study presents a facile method to develop highly porous graphitic nanosheets (PGNs) from converted carbon blacks (CBs) for hydrogen (H2) storage. The CBs, containing interconnected amorphous and graphitic domains, allows the introduction of numerous H2-friendly adsorption sites during PGNs production. The resulting PGNs show large sheets of 3–5 μm and thicknesses of ∼ 2.5 nm, boasting a remarkable specific surface area of 2,644 m2/g with significant total H2 storage capacities of 11.5 wt% (3.8 kWh kg−1 @ 77 K) and 2.6 wt% (0.87 kWh kg−1, @ 298 K) at 60 bar. This research introduces a promising strategy to enhance PGNs's H2 storage capabilities, paving the way for diverse energy-related fields.

KW - 2D porous graphitic nanosheets

KW - Ball-milling

KW - Carbon blacks

KW - Chemical activation

KW - Hydrogen storage

UR - https://www.scopus.com/pages/publications/85187193377

U2 - 10.1016/j.cej.2024.149988

DO - 10.1016/j.cej.2024.149988

M3 - Article

AN - SCOPUS:85187193377

SN - 1385-8947

VL - 486

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

M1 - 149988

ER -

Facile production of highly porous graphitic nanosheets for enhanced hydrogen storage

Abstract

Keywords

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