Ultrathin RuRh Alloy Nanosheets Enable High-Performance Lithium-CO2 Battery

Yi Xing; Kai Wang; Na Li; Dong Su; Wing-Tak Wong; Bolong Huang; Shaojun Guo

doi:10.1016/j.matt.2020.02.020

Ultrathin RuRh Alloy Nanosheets Enable High-Performance Lithium-CO₂ Battery

Yi Xing
, Kai Wang
, Na Li
, Dong Su
, Wing-Tak Wong
, Bolong Huang^*
, Shaojun Guo^*

^*Corresponding author for this work

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

126 Citations (Scopus)

Abstract

Ultrathin triangular RuRh alloy nanosheets have been successfully synthesized, and demonstrated as an exceptionally active catalyst for significantly activating CO₂ reduction and evolution reactions, which endow the Li-CO₂ battery with superior cycling performance and rate capability. At 1,000 mA g⁻¹, the Li-CO₂ battery with RuRh catalysts can stably discharge and charge up to 180 cycles without capacity decay, and the voltage gap of terminal discharge and charge potentials is only 1.35 V and still below 1.60 V at the 180^th cycle, which is the best rate capability reported to date. Alloying Ru with Rh can impose a high activity in electron transfer of surface Ru, thus not only favoring CO₂ reduction and Li₂CO₃ nucleation but also facilitating Li₂CO₃ decomposition. In such a scenario, the Li-CO₂ battery composed of ultrathin RuRh alloy nanosheets provides a promising strategy to concurrently achieve highly renewable energy-storage devices and greenhouse gas utilization. © 2020 Elsevier Inc.

Original language	English
Pages (from-to)	1494-1508
Journal	Matter
Volume	2
Issue number	6
Online published	17 Mar 2020
DOIs	https://doi.org/10.1016/j.matt.2020.02.020
Publication status	Published - 3 Jun 2020
Externally published	Yes

Funding

This work was financially supported by the Beijing Natural Science Foundation (JQ18005), the Tencent Foundation through the XPLORER PRIZE, the National Key R&D Program of China (no. 2016YFB0100201), National Natural Science Foundation of China (no. 51671003 and no. 21771156), BIC-ESAT project, Young Thousand Talented Program, and the Early Career Scheme (ECS) fund (grant no. PolyU 253026/16P) from the Research Grant Council (RGC) in Hong Kong. Electron microscopy work used resources of the Center for Functional Nanomaterials, which is a US DOE Office of Science Facility, at Brookhaven National Laboratory under contract no. DE-SC0012704.

UN SDGs

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

SDG 7 Affordable and Clean Energy
SDG 13 Climate Action

Research Keywords

cycle life
lithium-CO2 battery
MAP5: Improvement
overpotential
rate capability
RuRh alloy nanosheet

RGC Funding Information

RGC-funded

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Cite this

@article{424b211bff464459a6c14cb41ca869ac,

title = "Ultrathin RuRh Alloy Nanosheets Enable High-Performance Lithium-CO2 Battery",

abstract = "Ultrathin triangular RuRh alloy nanosheets have been successfully synthesized, and demonstrated as an exceptionally active catalyst for significantly activating CO2 reduction and evolution reactions, which endow the Li-CO2 battery with superior cycling performance and rate capability. At 1,000 mA g−1, the Li-CO2 battery with RuRh catalysts can stably discharge and charge up to 180 cycles without capacity decay, and the voltage gap of terminal discharge and charge potentials is only 1.35 V and still below 1.60 V at the 180th cycle, which is the best rate capability reported to date. Alloying Ru with Rh can impose a high activity in electron transfer of surface Ru, thus not only favoring CO2 reduction and Li2CO3 nucleation but also facilitating Li2CO3 decomposition. In such a scenario, the Li-CO2 battery composed of ultrathin RuRh alloy nanosheets provides a promising strategy to concurrently achieve highly renewable energy-storage devices and greenhouse gas utilization. {\textcopyright} 2020 Elsevier Inc.",

keywords = "cycle life, lithium-CO2 battery, MAP5: Improvement, overpotential, rate capability, RuRh alloy nanosheet",

author = "Yi Xing and Kai Wang and Na Li and Dong Su and Wing-Tak Wong and Bolong Huang and Shaojun Guo",

year = "2020",

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TY - JOUR

T1 - Ultrathin RuRh Alloy Nanosheets Enable High-Performance Lithium-CO2 Battery

AU - Xing, Yi

AU - Wang, Kai

AU - Li, Na

AU - Su, Dong

AU - Wong, Wing-Tak

AU - Huang, Bolong

AU - Guo, Shaojun

PY - 2020/6/3

Y1 - 2020/6/3

N2 - Ultrathin triangular RuRh alloy nanosheets have been successfully synthesized, and demonstrated as an exceptionally active catalyst for significantly activating CO2 reduction and evolution reactions, which endow the Li-CO2 battery with superior cycling performance and rate capability. At 1,000 mA g−1, the Li-CO2 battery with RuRh catalysts can stably discharge and charge up to 180 cycles without capacity decay, and the voltage gap of terminal discharge and charge potentials is only 1.35 V and still below 1.60 V at the 180th cycle, which is the best rate capability reported to date. Alloying Ru with Rh can impose a high activity in electron transfer of surface Ru, thus not only favoring CO2 reduction and Li2CO3 nucleation but also facilitating Li2CO3 decomposition. In such a scenario, the Li-CO2 battery composed of ultrathin RuRh alloy nanosheets provides a promising strategy to concurrently achieve highly renewable energy-storage devices and greenhouse gas utilization. © 2020 Elsevier Inc.

AB - Ultrathin triangular RuRh alloy nanosheets have been successfully synthesized, and demonstrated as an exceptionally active catalyst for significantly activating CO2 reduction and evolution reactions, which endow the Li-CO2 battery with superior cycling performance and rate capability. At 1,000 mA g−1, the Li-CO2 battery with RuRh catalysts can stably discharge and charge up to 180 cycles without capacity decay, and the voltage gap of terminal discharge and charge potentials is only 1.35 V and still below 1.60 V at the 180th cycle, which is the best rate capability reported to date. Alloying Ru with Rh can impose a high activity in electron transfer of surface Ru, thus not only favoring CO2 reduction and Li2CO3 nucleation but also facilitating Li2CO3 decomposition. In such a scenario, the Li-CO2 battery composed of ultrathin RuRh alloy nanosheets provides a promising strategy to concurrently achieve highly renewable energy-storage devices and greenhouse gas utilization. © 2020 Elsevier Inc.

KW - cycle life

KW - lithium-CO2 battery

KW - MAP5: Improvement

KW - overpotential

KW - rate capability

KW - RuRh alloy nanosheet

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U2 - 10.1016/j.matt.2020.02.020

DO - 10.1016/j.matt.2020.02.020

M3 - RGC 21 - Publication in refereed journal

SN - 2590-2393

VL - 2

SP - 1494

EP - 1508

JO - Matter

JF - Matter

IS - 6

ER -