Energizing Fuel Cells with an Electrically Rechargeable Liquid Fuel

Shi, Xinyi; Huo, Xiaoyu; Ma, Yining; Pan, Zhefei; An, Liang

doi:10.1016/j.xcrp.2020.100102

Cited by 21 publications

(43 citation statements)

References 78 publications

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“…On the other hand, due to the self-corrosion on Zn electrode (Zn + 2H 2 O = Zn (OH) 2 + H 2 ), more Zn is spent on the self-corrosion for a longer discharging time at lower current, resulted the lower specific capacity, as illustrated refs. [26,41].…”

Section: Resultsmentioning

confidence: 99%

Nitrate‐to‐Ammonia Conversion on Ru/Ni Hydroxide Hybrid through Zinc‐Nitrate Fuel Cell

Zhou

Sun

2022

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The fuel cell is a basic device to generate electricity from chemical fuels. It is often operated with oxygen as the oxidizing agent, but its sluggish reduction has become a key challenge. Herein, a conceptual oxygen‐free design is demonstrated, namely a zinc‐nitrate fuel cell, which converts nitrate waste into valuable ammonia and generates electricity simultaneously. The cell is constructed with zinc foil as the anode and ruthenium (Ru) nanoparticles loaded on nickel foam as the cathode. Catalyzed by Ru/Ni hydroxide hybrid, the reaction rate of 384 mmol h–1 mgRu–1 (1.4 × 10–6 ± 0.1 × 10–6 mol s–1 cm–2) and Faradic efficiency (FENH3 = 97% ± 2%) at −0.6 V versus reverse hydrogen electrode are achieved for nitrate‐to‐ammonia conversion. During ammonia production, such zinc‐nitrate fuel cell can further deliver a maximum power density of 51.5 mW cm–2 (0.25 cm2 electrode) and 23.3 mW cm–2 (1 cm2 electrode), keeping ultrahigh Faradic efficiency (97% ± 4% at 40 mA cm–2) after long tests.

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Section: Resultsmentioning

confidence: 99%

Nitrate‐to‐Ammonia Conversion on Ru/Ni Hydroxide Hybrid through Zinc‐Nitrate Fuel Cell

Zhou

Sun

2022

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“…The MEA of this passive fuel cell (2.0 × 2.0 cm 2 ) was fabricated following the method reported previously, 14 where a thermally treated graphite felt and a Pt/C coated carbon paper (2.0 mg cm −2 ) was used as anode and cathode, respectively. 14 Nafion 117 pretreated following the standard procedure reported previously was used as proton-exchange membrane in the middle of the MEA. 14 3.2.…”

Section: Methodsmentioning

confidence: 99%

“…14 Nafion 117 pretreated following the standard procedure reported previously was used as proton-exchange membrane in the middle of the MEA. 14 3.2. Cell Assembly and Experimental Apparatus.…”

Section: Methodsmentioning

confidence: 99%

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A Passive Fuel Cell Fed with an Electrically Rechargeable Liquid Fuel

Shi

Dai

Esan

et al. 2021

ACS Appl. Mater. Interfaces

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Passive fuel cells, using diffusion and natural convection for fuel delivery, are regarded as promising candidates for powering portable devices including mobile phones and laptops. However, the performance of passive fuel cells which employ typical liquid alcohol fuels are still limited, which thereby greatly hampered their commercialization progress. Recently, a novel concept named the electrically rechargeable liquid fuel (e-fuel), with its rechargeability, cost-effectiveness, and superior reactivity, has attracted increasing attention. In this study, a passive fuel cell using the liquid e-fuel and the ambient air for electricity production is designed and fabricated. This passive fuel cell is demonstrated to achieve a peak power density of 116.2 mW cm −2 along with a stable operation for over 350 h, exhibiting great prospect for future applications.

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“…Global efforts towards minimising carbon emissions and promoting carbon neutrality have led to a decrease in conventional fossil fuel usage and the development of cost-effective sustainable energy [1,2]. In this regard, electrochemical energy storage systems with net-zero carbon emissions have drawn considerable attention [3,4]. Owing to high energy density and mature industrial manufacturing, lithium-ion batteries (LIBs) are the most extensively used method of rechargeable energy storage, found in electric vehicles, portable electronic devices, and grid energy storage [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Interphases in the electrodes of potassium ion batteries

et al. 2022

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Rechargeable potassium-ion batteries (PIBs) are of great interest as a sustainable, environmentally friendly, and cost-effective energy storage technology. The electrochemical performance of a PIB is closely related to the reaction kinetics of active materials, ionic/electronic transport, and the structural/electrochemical stability of cell components. Alongside the great effort devoted in discovering and optimising electrode materials, recent research unambiguously demonstrates the decisive role of the interphases that interconnect adjacent components in a PIB. Knowledge of interphases is currently less comprehensive and satisfactory compared to that of electrode materials, and therefore, understanding the interphases is crucial to facilitate electrode materials design and advance battery performance. The present review aims to summarise the critical interphases that dominate the overall battery performance of PIBs, which includes solid-electrolyte interphase (SEI), cathode-electrolyte interphase (CEI), and solid-solid interphases in composite electrodes, via exploring their formation principles, chemical compositions, and determination of reaction kinetics. State-of-the-art design strategies of robust interphases are discussed and analysed. Finally, perspectives are given to stimulate new ideas and open questions to further the understanding of interphases and the development of PIBs.

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Energizing Fuel Cells with an Electrically Rechargeable Liquid Fuel

Cited by 21 publications

References 78 publications

Nitrate‐to‐Ammonia Conversion on Ru/Ni Hydroxide Hybrid through Zinc‐Nitrate Fuel Cell

Nitrate‐to‐Ammonia Conversion on Ru/Ni Hydroxide Hybrid through Zinc‐Nitrate Fuel Cell

A Passive Fuel Cell Fed with an Electrically Rechargeable Liquid Fuel

Interphases in the electrodes of potassium ion batteries

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