Graphene-tailored molecular bonds for advanced hydrogen and lithium storage performance

Yuqin Huang; Guanglin Xia; Jian Zhang; Zaiping Guo; Xuebin Yu

doi:10.1016/j.ensm.2018.07.020

Graphene-tailored molecular bonds for advanced hydrogen and lithium storage performance

Yuqin Huang
, Guanglin Xia^*
, Jian Zhang
, Zaiping Guo
, Xuebin Yu

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

17 Citations (Scopus)

Abstract

The practical application of sodium alanate (NaAlH₄) as a hydrogen and lithium storage material has attracted intensive attention. The high energy barrier for breaking the Al-H bonds of NaAlH₄, however, remains a key challenge. Here, we report that graphene could act as an effective platform to tailor the metal-hydrogen bonds of NaAlH₄ through their favorable molecular interaction. Theoretical and experimental results confirm that graphene is capable of weakening the Al-H bonds of NaAlH₄, thus facilitating the breaking and recombination of Al-H bonds towards advanced hydrogen and lithium storage performance. In addition, owing to this favorable interaction, a robust nanostructure composed of homogeneous NaAlH₄ nanoparticles with an average size of ~12 nm encapsulated in graphene nanosheets has been developed via a facile solvent evaporation induced deposition method with a tunable loading and distribution. The synergistic effects of the favorable molecular interaction between graphene and NaAlH₄ and the noticeable decrease in particle size significantly boost the hydrogen and lithium storage performances of NaAlH₄. This method provides new avenues to tailoring the molecular bonds of metal hydrides for a new range of applications in various fields. © 2018

Original language	English
Pages (from-to)	178-185
Number of pages	8
Journal	Energy Storage Materials
Volume	17
DOIs	https://doi.org/10.1016/j.ensm.2018.07.020
Publication status	Published - 1 Feb 2019
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]

Funding

This work was partially supported by the National Science Fund for Distinguished Young Scholars ( 51625102 ), National Key Research and Development Program of China ( 2017YFA0204600 ), the National Natural Science Foundation of China ( 51471053 ), the Science and Technology Commission of Shanghai Municipality ( 17XD1400700 ), and a Discovery Early Career Researcher Award ( DE170100362 ). The authors also would like to thank Prof. Dianwu Zhou in Hunan University for the support of the DFT calculations software, and Dr. Tania Silver for critical reading of the manuscript.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

Alanates
Complex hydrides
Graphene
Hydrogen storage
Thermodynamics

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title = "Graphene-tailored molecular bonds for advanced hydrogen and lithium storage performance",

abstract = "The practical application of sodium alanate (NaAlH4) as a hydrogen and lithium storage material has attracted intensive attention. The high energy barrier for breaking the Al-H bonds of NaAlH4, however, remains a key challenge. Here, we report that graphene could act as an effective platform to tailor the metal-hydrogen bonds of NaAlH4 through their favorable molecular interaction. Theoretical and experimental results confirm that graphene is capable of weakening the Al-H bonds of NaAlH4, thus facilitating the breaking and recombination of Al-H bonds towards advanced hydrogen and lithium storage performance. In addition, owing to this favorable interaction, a robust nanostructure composed of homogeneous NaAlH4 nanoparticles with an average size of \textasciitilde{}12 nm encapsulated in graphene nanosheets has been developed via a facile solvent evaporation induced deposition method with a tunable loading and distribution. The synergistic effects of the favorable molecular interaction between graphene and NaAlH4 and the noticeable decrease in particle size significantly boost the hydrogen and lithium storage performances of NaAlH4. This method provides new avenues to tailoring the molecular bonds of metal hydrides for a new range of applications in various fields. {\textcopyright} 2018",

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AU - Huang, Yuqin

AU - Xia, Guanglin

AU - Zhang, Jian

AU - Guo, Zaiping

AU - Yu, Xuebin

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]

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N2 - The practical application of sodium alanate (NaAlH4) as a hydrogen and lithium storage material has attracted intensive attention. The high energy barrier for breaking the Al-H bonds of NaAlH4, however, remains a key challenge. Here, we report that graphene could act as an effective platform to tailor the metal-hydrogen bonds of NaAlH4 through their favorable molecular interaction. Theoretical and experimental results confirm that graphene is capable of weakening the Al-H bonds of NaAlH4, thus facilitating the breaking and recombination of Al-H bonds towards advanced hydrogen and lithium storage performance. In addition, owing to this favorable interaction, a robust nanostructure composed of homogeneous NaAlH4 nanoparticles with an average size of ~12 nm encapsulated in graphene nanosheets has been developed via a facile solvent evaporation induced deposition method with a tunable loading and distribution. The synergistic effects of the favorable molecular interaction between graphene and NaAlH4 and the noticeable decrease in particle size significantly boost the hydrogen and lithium storage performances of NaAlH4. This method provides new avenues to tailoring the molecular bonds of metal hydrides for a new range of applications in various fields. © 2018

AB - The practical application of sodium alanate (NaAlH4) as a hydrogen and lithium storage material has attracted intensive attention. The high energy barrier for breaking the Al-H bonds of NaAlH4, however, remains a key challenge. Here, we report that graphene could act as an effective platform to tailor the metal-hydrogen bonds of NaAlH4 through their favorable molecular interaction. Theoretical and experimental results confirm that graphene is capable of weakening the Al-H bonds of NaAlH4, thus facilitating the breaking and recombination of Al-H bonds towards advanced hydrogen and lithium storage performance. In addition, owing to this favorable interaction, a robust nanostructure composed of homogeneous NaAlH4 nanoparticles with an average size of ~12 nm encapsulated in graphene nanosheets has been developed via a facile solvent evaporation induced deposition method with a tunable loading and distribution. The synergistic effects of the favorable molecular interaction between graphene and NaAlH4 and the noticeable decrease in particle size significantly boost the hydrogen and lithium storage performances of NaAlH4. This method provides new avenues to tailoring the molecular bonds of metal hydrides for a new range of applications in various fields. © 2018

KW - Alanates

KW - Complex hydrides

KW - Graphene

KW - Hydrogen storage

KW - Thermodynamics

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U2 - 10.1016/j.ensm.2018.07.020

DO - 10.1016/j.ensm.2018.07.020

M3 - RGC 21 - Publication in refereed journal

SN - 2405-8297

VL - 17

SP - 178

EP - 185

JO - Energy Storage Materials

JF - Energy Storage Materials

ER -

Graphene-tailored molecular bonds for advanced hydrogen and lithium storage performance

Abstract

Bibliographical note

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UN SDGs

Research Keywords

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