Effective treatment of hydrogen boride sheets for long-term stabilization

Ito, Shin‐ichi; Hikichi, Miwa; Noguchi, Natsumi; Yuan, Ming; Kang, Zhenhui; Fukuda, K.; Miyauchi, Masahiro; Matsuda, Ichiro; Kondo, Takahiro

doi:10.1039/d3cp01256e

Cited by 8 publications

(1 citation statement)

References 39 publications

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“…[17] In this work, the acid-assisted reaction [50] was not employed to avoid the inclusion of used acid species in the product. In addition, the pretreatment [51] for the long-term stability was not employed.…”

Section: Methodsmentioning

confidence: 99%

Controlling Photoinduced H₂ Release from Freestanding Borophane Sheets Under UV Irradiation by Tuning B–H Bonds

Hikichi

Takeshita

Noguchi

et al. 2023

Adv Materials Inter

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Hydrogen boride (HB), a freestanding 2D hydrogenated‐borophene (borophane) polymorph, is synthesized via ion exchange. HB sheets with a B/H atomic ratio of 1.0 are confirmed to contain three‐center–two‐electron B–H–B bonds and two‐center–two‐electron terminal B–H bonds. The optical properties of HB sheets are expected to be tunable by changing the BHB/BH bond ratio, which alters the electronic structure of HB sheets; however, this is not yet achieved. This study demonstrates that controlling the BHB/BH bond ratio in the HB sheets is possible without altering the hydrogen content by adjusting the volume of ion‐exchange resin during synthesis, thus enabling the tuning of the photoinduced H2 release under UV irradiation. Furthermore, the fluorescence intensity correlates with the absorbance ratio of the BHB and BH vibrational modes. Increasing the BHB/BH bond ratio enhances the luminescence intensity, whereas reducing it enhances the photoinduced H2 release rate under UV irradiation. The ability to control the BHB/BH bond ratio of HB sheets provides new avenues for optimizing their properties for various applications, including hydrogen storage and photocatalysis.

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Section: Methodsmentioning

confidence: 99%

Controlling Photoinduced H₂ Release from Freestanding Borophane Sheets Under UV Irradiation by Tuning B–H Bonds

Hikichi

Takeshita

Noguchi

et al. 2023

Adv Materials Inter

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Hydrogen Boride Sheets and Copper Nanoparticle Composites as a Visible‐Light‐Sensitive Hydrogen Release System

Mauliana,

Yamaguchi,

Kondo

et al. 2024

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Hydrogen boride (HB) sheet is a new class of 2D materials comprising hydrogen and boron, synthesized through ion‐exchange and exfoliation techniques. HB sheets can release hydrogen (H2) under light irradiation and is predicted to be a promising H2 storage material. However, its application is limited to the UV region. One approach to enable a visible‐light‐driven system is the utilization of plasmonic metallic nanoparticles. The present study reports H2 release from copper (Cu) nanoparticle‐modified HB sheet (HB/Cu) under visible‐light irradiation. Copper nanoparticles possess unique and strong plasmonic responses in the visible‐light range, making them ideal light absorbers in this system. HB/Cu nanocomposites are synthesized using a simple mixture of copper acetate and HB sheets in acetonitrile, where HB sheets reduced copper ions to metal copper nanoparticles. The photoirradiation results shows that HB/Cu nanocomposites released more H2 than the bare HB sheets under visible‐light irradiation. This is probably due to the plasmonic photothermal effect of copper metal, which enhances H2 generation from the HB sheets. This material offers a viable and cost‐effective approach for developing visible‐light‐sensitive systems.

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Fermi Edge of Semimetallic Borophane Sheets and its Reduction by a Porous Structure

Zhang,

Miyamoto,

Yuan

et al. 2024

J. Phys. Chem. Lett.

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Effective treatment of hydrogen boride sheets for long-term stabilization

Abstract: Two-dimensional hydrogen boride (HB) sheets prepared via the ion-exchange reaction from magnesium diboride (MgB2) are known to possess several intriguing properties for a wide range of applications; however, previous reports...

Cited by 8 publications

References 39 publications

Controlling Photoinduced H₂ Release from Freestanding Borophane Sheets Under UV Irradiation by Tuning B–H Bonds

Controlling Photoinduced H₂ Release from Freestanding Borophane Sheets Under UV Irradiation by Tuning B–H Bonds

Hydrogen Boride Sheets and Copper Nanoparticle Composites as a Visible‐Light‐Sensitive Hydrogen Release System

Fermi Edge of Semimetallic Borophane Sheets and its Reduction by a Porous Structure

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Effective treatment of hydrogen boride sheets for long-term stabilization

Abstract: Two-dimensional hydrogen boride (HB) sheets prepared via the ion-exchange reaction from magnesium diboride (MgB2) are known to possess several intriguing properties for a wide range of applications; however, previous reports...

Cited by 8 publications

References 39 publications

Controlling Photoinduced H2 Release from Freestanding Borophane Sheets Under UV Irradiation by Tuning B–H Bonds

Controlling Photoinduced H2 Release from Freestanding Borophane Sheets Under UV Irradiation by Tuning B–H Bonds

Hydrogen Boride Sheets and Copper Nanoparticle Composites as a Visible‐Light‐Sensitive Hydrogen Release System

Fermi Edge of Semimetallic Borophane Sheets and its Reduction by a Porous Structure

Contact Info

Product

Resources

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Controlling Photoinduced H₂ Release from Freestanding Borophane Sheets Under UV Irradiation by Tuning B–H Bonds

Controlling Photoinduced H₂ Release from Freestanding Borophane Sheets Under UV Irradiation by Tuning B–H Bonds