Room-temperature reduction of NO2 in a Li-NO2 battery: a proof of concept

Liang, Jiachen; Zhang, Chen; Liu, Donghai; Wu, Tianhao; Tao, Ying; Ling, Guowei; Yu, Haijun; Yang, Quan‐Hong

doi:10.1016/j.scib.2019.10.017

Cited by 9 publications

(3 citation statements)

References 45 publications

(43 reference statements)

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“…[14][15][16][17][18][19] For NO 2 gas, a Li8NO 2 battery is reported to reduce NO 2 . 20 However, the Li8NO 2 cell produced NO as the final reduzate, which is itself another air pollutant. 21,22 Currently, there is no electrochemical method to capture and utilize exhaust NO 2 to make value-added chemicals, and to simultaneously produce electrical power.…”

Section: Introductionmentioning

confidence: 99%

A high-energy aqueous Zn‖NO₂ electrochemical cell: a new strategy for NO₂ fixation and electric power generation

Chen

Yan

et al. 2023

Energy Environ. Sci.

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Section: Introductionmentioning

confidence: 99%

A high-energy aqueous Zn‖NO₂ electrochemical cell: a new strategy for NO₂ fixation and electric power generation

Chen

Yan

et al. 2023

Energy Environ. Sci.

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“…Ever-growing carbon emissions have stimulated the immediate measurement and exploration of clean and renewable energy resources to reduce fossil fuel consumption. − One promising strategy for this purpose is emerging Li–CO 2 batteries, which have attracted wide interest due to their ability to capture CO 2 and significant energy storage delivery. The operation of a rechargeable Li–CO 2 battery is based on the electrochemical reactions that occur between Li + and CO 2 (4Li + + 3CO 2 + 4e – ↔ 2Li 2 CO 3 + C), providing a high-energy density (1876 Wh kg –1 ) and displaying a significant effect on space exploration. , However, the wide-band gap insulated Li 2 CO 3 with chemical stability and low electronic conductivity will inevitably increase the charge transfer impedance.…”

Section: Introductionmentioning

confidence: 99%

Unraveling the Mechanism of Field-Induced Li⁺ Concentration for Improved Kinetics in Rechargeable Li–CO₂ Batteries

Song

Luo

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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The design of highly efficient electrocatalysts is a promising strategy to improve the electrochemical kinetics of Li–CO2 batteries. However, electrocatalysts usually aim to reduce the energetic barrier for the corresponding electrochemical reactions; little attention has been given to modulating the kinetics that directly determine the local concentration of reaction molecules surrounding catalysts. Herein, we present a systematic study on the role of Li+ reunion on the improvement of reaction kinetics in Li–CO2 batteries with a Cu cone cathode. Specifically, this local, geometry-driven tip effect can enrich the local electron concentration to facilitate Li+ ions diffusion from the bulk electrolyte to the surface of catalyst, leading to boosted catalytic performance. Further studies demonstrate that Cu(II/I) as a solid redox mediator dominates the reversible bulk redox reactions in a Cu cone cathode, which acts as an electron–hole transfer agent and permits the efficient reduction and oxidation of solid Li2CO3, contributing to an accessible theoretical discharge voltage, low charge potential below 3.2 V, impressive rate capability, and a long cycling stability (333 days) for Li–CO2 batteries. The exploitation of the sharp-tip enhancement effect and dynamic creation of catalytic active sites is expected to become routine practice in future mechanistic studies for metal-air batteries.

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“…During the past decade, metal–gas batteries, which supply power by electrochemical reaction on the metal anode and gas cathode, have gained tremendous attention. Various combinations of metal and gas, such as Zn–O 2 , Al–CO 2 , Al–N 2 , Li–SO 2 , Li–O 2 , Li–N 2 , and Li–NO 2 have been demonstrated with different output voltages. For example, a typical zinc–air battery (Zn–O 2 ) exhibits a theoretical output of 1.65 V based on the reaction of zinc anode and O 2 gas in air with the aid of a cathode catalyst .…”

Section: Introductionmentioning

confidence: 99%

Battery-Sensor Hybrid: A New Gas Sensing Paradigm with Complete Energy Self-Sufficiency

Yan

et al. 2021

ACS Appl. Mater. Interfaces

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Fully autonomous operation has long been an ultimate goal in environmental sensing. Although self-powered gas sensors based on energy harvesting have been widely reported to provide power for autonomous operation, these sensors rely on external sources of harvestable energy, thus are not completely self-sufficient. Herein, a battery-sensor hybrid device that can simultaneously function as both a power source and a gas sensor is presented. The battery-sensor consists of a cathode that reduces NO 2 to NO 2 − via a catalyst with Fe−N x species distributed on highly graphitic porous nitrogen-doped carbon. On the basis of the efficient and selective electrocatalytic activity of the catalyst, the battery-sensor is capable of sensing NO 2 and does so without any external power, overcoming the long-standing grand challenge to achieve complete energy self-sufficiency. Furthermore, through controlling the working current the sensing range can be significantly expanded and electronically tuned, which is not only unprecedented for gas sensors but also of remarkable commercial practicality. The proposed battery-sensor hybrid architecture represents a new paradigm toward sensors with complete energy self-sufficiency.

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Room-temperature reduction of NO2 in a Li-NO2 battery: a proof of concept

Cited by 9 publications

References 45 publications

A high-energy aqueous Zn‖NO₂ electrochemical cell: a new strategy for NO₂ fixation and electric power generation

A high-energy aqueous Zn‖NO₂ electrochemical cell: a new strategy for NO₂ fixation and electric power generation

Unraveling the Mechanism of Field-Induced Li⁺ Concentration for Improved Kinetics in Rechargeable Li–CO₂ Batteries

Battery-Sensor Hybrid: A New Gas Sensing Paradigm with Complete Energy Self-Sufficiency

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Room-temperature reduction of NO2 in a Li-NO2 battery: a proof of concept

Cited by 9 publications

References 45 publications

A high-energy aqueous Zn‖NO2 electrochemical cell: a new strategy for NO2 fixation and electric power generation

A high-energy aqueous Zn‖NO2 electrochemical cell: a new strategy for NO2 fixation and electric power generation

Unraveling the Mechanism of Field-Induced Li+ Concentration for Improved Kinetics in Rechargeable Li–CO2 Batteries

Battery-Sensor Hybrid: A New Gas Sensing Paradigm with Complete Energy Self-Sufficiency

Contact Info

Product

Resources

About

A high-energy aqueous Zn‖NO₂ electrochemical cell: a new strategy for NO₂ fixation and electric power generation

A high-energy aqueous Zn‖NO₂ electrochemical cell: a new strategy for NO₂ fixation and electric power generation

Unraveling the Mechanism of Field-Induced Li⁺ Concentration for Improved Kinetics in Rechargeable Li–CO₂ Batteries