Open Access

Science, volume 357, issue 6349, pages 382-385

Synthesis of FeH5: A layered structure with atomic hydrogen slabs

Pépin Charles ^{1, 2}

Geneste G. ¹

Dewaele A. ¹

Mezouar M. ³

Loubeyre P ¹

Hide authors affiliations Show authors affiliations: 3 affiliations

Commissariat à l’Energie Atomique et aux Energies Alternatives, DAM, DIF, F-91297 Arpajon, France. |

Earth and Planetary Science Laboratory, Institute of Condensed Matter Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland. |

European Synchrotron Radiation Facility, 6 Rue Jules Horowitz BP220, F-38043 Grenoble CEDEX, France. |

Publication type: Journal Article

Publication date: 2017-07-28

American Association for the Advancement of Science (AAAS)

Journal: Science

Quartile SCImago

Quartile WOS

Impact factor: 56.9

ISSN: 00368075, 10959203

DOI: 10.1126/science.aan0961

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Multidisciplinary

Abstract

Atomic hydrogen with an iron assist Metal polyhydrides can be used at lower pressures to make material that might have atomic hydrogen bonding. Pépin et al. manage to synthesize an incredibly hydrogen-rich FeH5 compound at 130 GPa pressure. The material consists of slabs of four thin planes of atomic hydrogen intercalated with layers of quasicubic FeH3 units. These metal polyhydrides were stable at far more accessible pressures than pure hydrogen. This achievement provides an opportunity to investigate special electrical properties expected from atomic hydrogen bonding, such as superconductivity. Science, this issue p. 382 A high-pressure iron polyhydride has layers of atomic hydrogen that could be an analog for pure atomic hydrogen. High pressure promotes the formation of polyhydrides with unusually high hydrogen-to-metal ratios. These polyhydrides have complex hydrogenic sublattices. We synthesized iron pentahydride (FeH5) by a direct reaction between iron and H2 above 130 gigapascals in a laser-heated diamond anvil cell. FeH5 exhibits a structure built of atomic hydrogen only. It consists of intercalated layers of quasicubic FeH3 units and four-plane slabs of thin atomic hydrogen. The distribution of the valence electron density indicates a bonding between hydrogen and iron atoms but none between hydrogen atoms, presenting a two-dimensional metallic character. The discovery of FeH5 suggests a low-pressure path to make materials that approach bulk dense atomic hydrogen.

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	5 10 15 20 25 30
American Physical Society (APS)	American Physical Society (APS), 29, 21.32% American Physical Society (APS) 29 publications, 21.32%
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American Astronomical Society	American Astronomical Society, 2, 1.47% American Astronomical Society 2 publications, 1.47%
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American Geophysical Union	American Geophysical Union, 1, 0.74% American Geophysical Union 1 publication, 0.74%
World Scientific	World Scientific, 1, 0.74% World Scientific 1 publication, 0.74%
Frontiers Media S.A.	Frontiers Media S.A., 1, 0.74% Frontiers Media S.A. 1 publication, 0.74%
China University of Geosciences (Beijing) and Peking University	China University of Geosciences (Beijing) and Peking University, 1, 0.74% China University of Geosciences (Beijing) and Peking University 1 publication, 0.74%
Scientific Research Publishing	Scientific Research Publishing, 1, 0.74% Scientific Research Publishing 1 publication, 0.74%
Taylor & Francis	Taylor & Francis, 1, 0.74% Taylor & Francis 1 publication, 0.74%
Proceedings of the National Academy of Sciences (PNAS)	Proceedings of the National Academy of Sciences (PNAS), 1, 0.74% Proceedings of the National Academy of Sciences (PNAS) 1 publication, 0.74%
Japan Institute of Metals and Materials	Japan Institute of Metals and Materials, 1, 0.74% Japan Institute of Metals and Materials 1 publication, 0.74%
	5 10 15 20 25 30

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Pépin C. et al. Synthesis of FeH5: A layered structure with atomic hydrogen slabs // Science. 2017. Vol. 357. No. 6349. pp. 382-385.

GOST all authors (up to 50) Copy

Pépin C., Geneste G., Dewaele A., Mezouar M., Loubeyre P. Synthesis of FeH5: A layered structure with atomic hydrogen slabs // Science. 2017. Vol. 357. No. 6349. pp. 382-385.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1126/science.aan0961

UR - https://doi.org/10.1126%2Fscience.aan0961

TI - Synthesis of FeH5: A layered structure with atomic hydrogen slabs

T2 - Science

AU - Pépin, Charles

AU - Geneste, G.

AU - Dewaele, A.

AU - Mezouar, M.

AU - Loubeyre, P

PY - 2017

DA - 2017/07/28 00:00:00

PB - American Association for the Advancement of Science (AAAS)

SP - 382-385

IS - 6349

VL - 357

SN - 0036-8075

SN - 1095-9203

ER -

BibTex |

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BibTex Copy

@article{2017_Pépin,

author = {Charles Pépin and G. Geneste and A. Dewaele and M. Mezouar and P Loubeyre},

title = {Synthesis of FeH5: A layered structure with atomic hydrogen slabs},

journal = {Science},

year = {2017},

volume = {357},

publisher = {American Association for the Advancement of Science (AAAS)},

month = {jul},

url = {https://doi.org/10.1126%2Fscience.aan0961},

number = {6349},

pages = {382--385},

doi = {10.1126/science.aan0961}

}

MLA

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MLA Copy

Pépin, Charles, et al. “Synthesis of FeH5: A layered structure with atomic hydrogen slabs.” Science, vol. 357, no. 6349, Jul. 2017, pp. 382-385. https://doi.org/10.1126%2Fscience.aan0961.

Found error?

Publisher

American Association for the Advancement of Science (AAAS)

Journal

Science

Quartile SCImago

Quartile WOS

Impact factor

56.9

ISSN

00368075 (Print)
10959203 (Electronic)