Monodisperse Molybdenum Nanoparticles as Highly Efficient Electrocatalysts for Li-S Batteries

Yuping Liu; Atasi Chatterjee; Pascal Rusch; Chuanqiang Wu; Pengfei Nan; Manhua Peng; Frederik Bettels; Taoran Li; Chenxi Ma; Chaofeng Zhang; Binghui Ge; Nadja-Carola Bigall; H. Pfnur; Fei Ding; Lin Zhang

doi:10.15488/11333

Monodisperse Molybdenum Nanoparticles as Highly Efficient Electrocatalysts for Li-S Batteries

Yuping Liu, Atasi Chatterjee, Pascal Rusch, Chuanqiang Wu, Pengfei Nan, Manhua Peng, Frederik Bettels, Taoran Li, Chenxi Ma, Chaofeng Zhang, Binghui Ge, Nadja-Carola Bigall, H. Pfnur, Fei Ding, Lin Zhang^*

^*Corresponding author for this work

Anhui University

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

Abstract

Lithium-sulfur (Li-S) batteries have attracted widespread attention due to their high theoretical energy density. However, their practical application is still hindered by the shuttle effect and the sluggish conversion of lithium polysulfides (LiPSs). Herein, monodisperse molybdenum (Mo) nanoparticles embedded onto nitrogen-doped graphene (Mo@N-G) were developed and used as a highly efficient electrocatalyst to enhance LiPS conversion. The weight ratio of the electrocatalyst in the catalyst/sulfur cathode is only 9%. The unfilled d orbitals of oxidized Mo can attract the electrons of LiPS anions and form Mo–S bonds during the electrochemical process, thus facilitating fast conversion of LiPSs. Li-S batteries based on the Mo@N-G/S cathode can exhibit excellent rate performance, large capacity, and superior cycling stability. Moreover, Mo@N-G also plays an important role in room-temperature quasi-solid-state Li-S batteries. These interesting findings suggest the great potential of Mo nanoparticles in building high-performance Li-S batteries.

Original language	English
Pages (from-to)	15047-15056
Number of pages	10
Journal	ACS NANO
Volume	15
Issue number	9
E-pub ahead of print	16 Sept 2021
DOIs	https://doi.org/10.15488/11333 https://doi.org/10.1021/acsnano.1c05344
Publication status	Published - 28 Sept 2021

Keywords

Li-S batteries
Mo-S bond
Mo-based compounds
electrocatalyst
monodisperse Mo nanoparticles
quasi-solid-state

ASJC Scopus subject areas

General Materials Science
General Engineering
General Physics and Astronomy

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10.15488/11333Licence: Other
10.1021/acsnano.1c05344

Cite this

@article{d0d036de78d048f3a6fb2c23c9c7272d,

title = "Monodisperse Molybdenum Nanoparticles as Highly Efficient Electrocatalysts for Li-S Batteries",

abstract = "Lithium-sulfur (Li-S) batteries have attracted widespread attention due to their high theoretical energy density. However, their practical application is still hindered by the shuttle effect and the sluggish conversion of lithium polysulfides (LiPSs). Herein, monodisperse molybdenum (Mo) nanoparticles embedded onto nitrogen-doped graphene (Mo@N-G) were developed and used as a highly efficient electrocatalyst to enhance LiPS conversion. The weight ratio of the electrocatalyst in the catalyst/sulfur cathode is only 9%. The unfilled d orbitals of oxidized Mo can attract the electrons of LiPS anions and form Mo–S bonds during the electrochemical process, thus facilitating fast conversion of LiPSs. Li-S batteries based on the Mo@N-G/S cathode can exhibit excellent rate performance, large capacity, and superior cycling stability. Moreover, Mo@N-G also plays an important role in room-temperature quasi-solid-state Li-S batteries. These interesting findings suggest the great potential of Mo nanoparticles in building high-performance Li-S batteries.",

keywords = "Li-S batteries, Mo-S bond, Mo-based compounds, electrocatalyst, monodisperse Mo nanoparticles, quasi-solid-state",

author = "Yuping Liu and Atasi Chatterjee and Pascal Rusch and Chuanqiang Wu and Pengfei Nan and Manhua Peng and Frederik Bettels and Taoran Li and Chenxi Ma and Chaofeng Zhang and Binghui Ge and Nadja-Carola Bigall and H. Pfnur and Fei Ding and Lin Zhang",

note = "Funding Information: N.C.B. and P.R. thank the DFG for partial funding under Germany{\textquoteright}s Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453) and the European Research Council (ERC) under the European Union{\textquoteright}s Horizon 2020 research and innovation program (grant agreement no. 714429). The authors moreover thank the Laboratory of Nano and Quantum Engineering (LNQE) for providing the SEM facility. ",

year = "2021",

month = sep,

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doi = "10.15488/11333",

language = "English",

volume = "15",

pages = "15047--15056",

journal = "ACS NANO",

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publisher = "American Chemical Society",

number = "9",

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TY - JOUR

T1 - Monodisperse Molybdenum Nanoparticles as Highly Efficient Electrocatalysts for Li-S Batteries

AU - Liu, Yuping

AU - Chatterjee, Atasi

AU - Rusch, Pascal

AU - Wu, Chuanqiang

AU - Nan, Pengfei

AU - Peng, Manhua

AU - Bettels, Frederik

AU - Li, Taoran

AU - Ma, Chenxi

AU - Zhang, Chaofeng

AU - Ge, Binghui

AU - Bigall, Nadja-Carola

AU - Pfnur, H.

AU - Ding, Fei

AU - Zhang, Lin

N1 - Funding Information: N.C.B. and P.R. thank the DFG for partial funding under Germany’s Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453) and the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement no. 714429). The authors moreover thank the Laboratory of Nano and Quantum Engineering (LNQE) for providing the SEM facility.

PY - 2021/9/28

Y1 - 2021/9/28

N2 - Lithium-sulfur (Li-S) batteries have attracted widespread attention due to their high theoretical energy density. However, their practical application is still hindered by the shuttle effect and the sluggish conversion of lithium polysulfides (LiPSs). Herein, monodisperse molybdenum (Mo) nanoparticles embedded onto nitrogen-doped graphene (Mo@N-G) were developed and used as a highly efficient electrocatalyst to enhance LiPS conversion. The weight ratio of the electrocatalyst in the catalyst/sulfur cathode is only 9%. The unfilled d orbitals of oxidized Mo can attract the electrons of LiPS anions and form Mo–S bonds during the electrochemical process, thus facilitating fast conversion of LiPSs. Li-S batteries based on the Mo@N-G/S cathode can exhibit excellent rate performance, large capacity, and superior cycling stability. Moreover, Mo@N-G also plays an important role in room-temperature quasi-solid-state Li-S batteries. These interesting findings suggest the great potential of Mo nanoparticles in building high-performance Li-S batteries.

AB - Lithium-sulfur (Li-S) batteries have attracted widespread attention due to their high theoretical energy density. However, their practical application is still hindered by the shuttle effect and the sluggish conversion of lithium polysulfides (LiPSs). Herein, monodisperse molybdenum (Mo) nanoparticles embedded onto nitrogen-doped graphene (Mo@N-G) were developed and used as a highly efficient electrocatalyst to enhance LiPS conversion. The weight ratio of the electrocatalyst in the catalyst/sulfur cathode is only 9%. The unfilled d orbitals of oxidized Mo can attract the electrons of LiPS anions and form Mo–S bonds during the electrochemical process, thus facilitating fast conversion of LiPSs. Li-S batteries based on the Mo@N-G/S cathode can exhibit excellent rate performance, large capacity, and superior cycling stability. Moreover, Mo@N-G also plays an important role in room-temperature quasi-solid-state Li-S batteries. These interesting findings suggest the great potential of Mo nanoparticles in building high-performance Li-S batteries.

KW - Li-S batteries

KW - Mo-S bond

KW - Mo-based compounds

KW - electrocatalyst

KW - monodisperse Mo nanoparticles

KW - quasi-solid-state

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U2 - 10.15488/11333

DO - 10.15488/11333

M3 - Article

SN - 1936-0851

VL - 15

SP - 15047

EP - 15056

JO - ACS NANO

JF - ACS NANO

IS - 9

ER -

Monodisperse Molybdenum Nanoparticles as Highly Efficient Electrocatalysts for Li-S Batteries

Abstract

Keywords

ASJC Scopus subject areas

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Other files and links

PhoenixD: Cluster of Excellence 2122/1: Photonics, Optics, and Engineering – Innovation Across Disciplines

Cite this

Monodisperse Molybdenum Nanoparticles as Highly Efficient Electrocatalysts for Li-S Batteries

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Projects

PhoenixD: Cluster of Excellence 2122/1: Photonics, Optics, and Engineering – Innovation Across Disciplines

Cite this