Proton transport through nanoscale corrugations in two-dimensional crystals

O. J. Wahab; E. Daviddi; B. Xin; P. Z. Sun; E. Griffin; A. W. Colburn; D. Barry; M. Yagmurcukardes; Francois Peeters; A. K. Geim; M. Lozada-Hidalgo; P. R. Unwin

doi:10.1002/9781119274063

Paper details

Research paper

Experimental CharacterizationComputational DFT

Proton transport through nanoscale corrugations in two-dimensional crystals

O. J. Wahab, E. Daviddi, B. Xin, P. Z. Sun et al.

Nature·2025·10.1002/9781119274063·arXiv:2305.04655

Samples

Each sample groups how it was prepared, characterized, and measured. Click a card to expand.

Mechanically exfoliated monolayer graphene membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

2 characterizations5 properties3 figures

ExperimentalCStudied Material

Mechanically exfoliated monolayer hexagonal boron nitride membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

1 characterization1 property1 figure

ExperimentalBNStudied Material

CVD graphene membrane used for comparison in SECCM measurements, discussed as containing grain boundaries and other growth-related defects.

1 characterization1 property1 figure

ExperimentalCStudied Material

Materials

graphene

Studied Material

Also known as

monolayer graphenemechanically-exfoliated grapheneCVD graphene

Variables

dimensionality= 2D

studied material

Why these are connected

Related documents with shared materials, methods, properties, or citations.

Proton transport through nanoscale corrugations in two-dimensional crystals | Matter42 Literature

Properties

Type	Label	Value	Material	Sample	Source
Fet On Off Ratio	SECCM current-mode peak current over noise	2	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Fet On Off Ratio	SECCM current mode	20pA	C	CVD graphene membrane used for comparison in SECCM measureme	—
Fet On Off Ratio	background leakage current	10fA	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Fet Sheet Resistance	proton conductivity	10mS cm⁻²	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Fet Sheet Resistance	proton conductivity	300mS cm⁻²	BN	Mechanically exfoliated monolayer hexagonal boron nitride me	—
Other	proton barrier relative to unstrained graphene	0.8fraction_of_unstrained_barrier	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Other	proton barrier relative to unstrained graphene with strain and curvature	0.75fraction_of_unstrained_barrier	C	Mechanically exfoliated monolayer graphene membrane suspende	—

Properties

Type	Label	Value	Material	Sample	Source
Fet On Off Ratio	SECCM current-mode peak current over noise	2	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Fet On Off Ratio	SECCM current mode	20pA	C	CVD graphene membrane used for comparison in SECCM measureme	—
Fet On Off Ratio	background leakage current	10fA	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Fet Sheet Resistance	proton conductivity	10mS cm⁻²	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Fet Sheet Resistance	proton conductivity	300mS cm⁻²	BN	Mechanically exfoliated monolayer hexagonal boron nitride me	—
Other	proton barrier relative to unstrained graphene	0.8fraction_of_unstrained_barrier	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Other	proton barrier relative to unstrained graphene with strain and curvature	0.75fraction_of_unstrained_barrier	C	Mechanically exfoliated monolayer graphene membrane suspende	—

Properties

Type	Label	Value	Material	Sample	Source
Fet On Off Ratio	SECCM current-mode peak current over noise	2	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Fet On Off Ratio	SECCM current mode	20pA	C	CVD graphene membrane used for comparison in SECCM measureme	—
Fet On Off Ratio	background leakage current	10fA	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Fet Sheet Resistance	proton conductivity	10mS cm⁻²	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Fet Sheet Resistance	proton conductivity	300mS cm⁻²	BN	Mechanically exfoliated monolayer hexagonal boron nitride me	—
Other	proton barrier relative to unstrained graphene	0.8fraction_of_unstrained_barrier	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Other	proton barrier relative to unstrained graphene with strain and curvature	0.75fraction_of_unstrained_barrier	C	Mechanically exfoliated monolayer graphene membrane suspende	—

Properties

Type	Label	Value	Material	Sample	Source
Fet On Off Ratio	SECCM current-mode peak current over noise	2	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Fet On Off Ratio	SECCM current mode	20pA	C	CVD graphene membrane used for comparison in SECCM measureme	—
Fet On Off Ratio	background leakage current	10fA	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Fet Sheet Resistance	proton conductivity	10mS cm⁻²	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Fet Sheet Resistance	proton conductivity	300mS cm⁻²	BN	Mechanically exfoliated monolayer hexagonal boron nitride me	—
Other	proton barrier relative to unstrained graphene	0.8fraction_of_unstrained_barrier	C	Mechanically exfoliated monolayer graphene membrane suspende	—
Other	proton barrier relative to unstrained graphene with strain and curvature	0.75fraction_of_unstrained_barrier	C	Mechanically exfoliated monolayer graphene membrane suspende	—

Proton transport through nanoscale corrugations in two-dimensional crystals

Samples

Mechanically exfoliated monolayer graphene membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

Mechanically exfoliated monolayer hexagonal boron nitride membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

CVD graphene membrane used for comparison in SECCM measurements, discussed as containing grain boundaries and other growth-related defects.

Materials

Why these are connected

Proton transport through nanoscale corrugations in two-dimensional crystals

Samples

Mechanically exfoliated monolayer graphene membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

Mechanically exfoliated monolayer hexagonal boron nitride membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

CVD graphene membrane used for comparison in SECCM measurements, discussed as containing grain boundaries and other growth-related defects.

Materials

Why these are connected

Proton transport through nanoscale corrugations in two-dimensional crystals

Samples

Mechanically exfoliated monolayer graphene membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

Mechanically exfoliated monolayer hexagonal boron nitride membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

CVD graphene membrane used for comparison in SECCM measurements, discussed as containing grain boundaries and other growth-related defects.

Materials

Why these are connected

Proton transport through nanoscale corrugations in two-dimensional crystals

Samples

Mechanically exfoliated monolayer graphene membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

Mechanically exfoliated monolayer hexagonal boron nitride membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

CVD graphene membrane used for comparison in SECCM measurements, discussed as containing grain boundaries and other growth-related defects.

Materials

Why these are connected

Proton transport through nanoscale corrugations in two-dimensional crystals

Samples

Mechanically exfoliated monolayer graphene membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

Mechanically exfoliated monolayer hexagonal boron nitride membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

CVD graphene membrane used for comparison in SECCM measurements, discussed as containing grain boundaries and other growth-related defects.

Materials

Why these are connected

Proton transport through nanoscale corrugations in two-dimensional crystals

Samples

Mechanically exfoliated monolayer graphene membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

Mechanically exfoliated monolayer hexagonal boron nitride membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

CVD graphene membrane used for comparison in SECCM measurements, discussed as containing grain boundaries and other growth-related defects.

Materials

Why these are connected

Proton transport through nanoscale corrugations in two-dimensional crystals

Samples

Mechanically exfoliated monolayer graphene membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

Mechanically exfoliated monolayer hexagonal boron nitride membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

CVD graphene membrane used for comparison in SECCM measurements, discussed as containing grain boundaries and other growth-related defects.

Materials

Why these are connected

Proton transport through nanoscale corrugations in two-dimensional crystals

Samples

Mechanically exfoliated monolayer graphene membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

Mechanically exfoliated monolayer hexagonal boron nitride membrane suspended over a micrometre-sized hole in a SiNx substrate, with Nafion on the underside and a Pt collector electrode in the cell.

CVD graphene membrane used for comparison in SECCM measurements, discussed as containing grain boundaries and other growth-related defects.

Materials

Why these are connected

Characterization

Properties

Simulations

Characterization

Properties

Simulations

Characterization

Properties

Simulations

Characterization

Properties

Simulations