Optimal design of reactant delivery system in microfluidic fuel cell with porous electrodes

Article Chemistry, Analytical

Modelling and experimental validation of polarization behavior of airbreathing microfluidic fuel cell using some common fuels: Methanol, ethanol and sodium borohydride

Amit Kumar Rathoure et al.

Summary: Airbreathing microfluidic fuel cell (MFC) holds potential as an energy source for various applications, and the developed mathematical model accurately predicts behavior based on experimental data.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY (2022)

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Article Agricultural Engineering

Deep learning-based optimization of a microfluidic membraneless fuel cell for maximum power density via data-driven three-dimensional multiphysics simulation

Dang Dinh Nguyen et al.

Summary: This study introduces a deep learning-based method to optimize the performance of a membraneless microfluidic fuel cell. By combining artificial neural network (ANN) and genetic algorithm (GA), the method achieves a high level of accuracy in determining the optimal inputs for maximum power density.

BIORESOURCE TECHNOLOGY (2022)

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Article Thermodynamics

Pore-scale modeling of mass transport in the air-breathing cathode of membraneless microfluidic fuel cells

Ya-lu Fu et al.

Summary: In this study, pore-scale Lattice Boltzmann models were developed to investigate the air-breathing cathode of membraneless microfluidic fuel cells. The results indicated that the microstructure of the gas diffusion layer played a crucial role in oxygen transport and reaction, while the electrolyte flow rate showed minimal impacts.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2022)

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Article Green & Sustainable Science & Technology

A comprehensive evaluation for microfluidic fuel cells from anti-vibration viewpoint using phase field theory

Tiancheng Ouyang et al.

Summary: Microfluidic fuel cell is considered as a future clean power source, but it faces challenges in practical application, such as the impact of vibration and two-phase flow on cell characteristics. This study establishes a biphasic model that integrates vibration effect and bubble dynamics theory, revealing that vibration distorts CO2 and delays bubble separation, while increasing flow rate improves current and power outputs at the expense of system efficiency.

RENEWABLE ENERGY (2022)

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Article Chemistry, Physical

Current density distribution in air-breathing microfluidic fuel cells with an array of graphite rod anodes

Bowen Deng et al.

Summary: This study investigates the current density distribution in air-breathing microfluidic fuel cells with an array of graphite rod anodes under different acidic and alkaline conditions. Results show that the performance of the cell is better under alkaline media compared to acidic media, with various current density distributions observed. In acidic media, two-layer anodes far from the cathode exhibit higher current densities at lower current densities, while the reverse occurs at higher current densities. In contrast, under alkaline conditions, the two-layer anodes far from the cathode are consistently the main contributor to the total current density.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Energy & Fuels

A membraneless microfluidic fuel cell with a hollow flow channel and porous flow-through electrodes

Muhammad Tanveer et al.

Summary: A novel flow channel configuration of a membraneless microfluidic fuel cell (MMFC) with porous flow-through electrodes was numerically investigated, showing that a hollow structure in the central flow channel coupled with porous electrodes performed the best in terms of peak power density.

INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2021)

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Article Electrochemistry

Numerical study on the performance of the H-shaped air-breathing microfluidic fuel cell stack

Peiyao Zhi et al.

Summary: The research on H-shaped air-breathing dual MFC and their stacks design theory, evaluated their performance through mathematical models, and the results are in good agreement with experimental data. The H-shaped dual cell shows higher output voltage and power density compared to traditional single cell.

ELECTROCHIMICA ACTA (2021)

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Article Chemistry, Physical

Discrete-holes film fueling anode heads for high performance air-breathing microfluidic fuel cell

Xun Zhu et al.

Summary: A novel air-breathing microfluidic fuel cell with discrete-holes film fueling anode was developed in this study, introducing the concept of gas film cooling to enhance fuel transfer efficiency. The visualization and verification of annular film flow based on film fueling were conducted using fluorescence microscopy under various flow conditions. The research results provide valuable insights for promoting the practical application of microfluidic fuel cells.

JOURNAL OF POWER SOURCES (2021)

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Article Thermodynamics

A prospective study of anti-vibration mechanism of microfluidic fuel cell via novel two-phase flow model

Jingxian Chen et al.

Summary: Microfluidic fuel cell is a promising device for portable electronic devices due to its output power, work time, and low emission, but vibration effects play a crucial role in its performance. A two-phase computational model was proposed to analyze the negative effects of vibration on the fuel cell performance, providing insights for future anti-vibration elements and cell design optimization.

ENERGY (2021)

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Article Chemistry, Physical

Innovation of vapor-feed microfluidic fuel cell with novel geometric configuration and operation parameters optimization

Tiancheng Ouyang et al.

Summary: A novel vapor-feed microfluidic fuel cell model was established in this study, and after optimizing structural parameters, the cell performance was significantly improved with a maximum power density of 47.43 mW/cm(2) achieved, and increased fuel utilization and exergy efficiency.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Electrochemistry

Dual-electrolyte aluminum/air microfluidic fuel cell with electrolyte-recirculation

Lei Wang et al.

Summary: The Aluminum/air microfluidic fuel cell combines the advantages of co-laminar MFC and aluminum/air batteries, making it a promising device for powering numerous nodes in the Internet of Things ecosystems with high energy density, low cost, membraneless, and miniaturized design. The recirculating dual-electrolyte design in the cell exhibits outstanding performance with an open-circuit voltage of 2.2 V and a short-current density of 1 A cm(-2), benefiting from the regular hierarchical porous carbon paper separator that minimizes electrolyte mixing and facilitates recirculation. This work provides an alternative route for cost-effective and high-performance aluminum/air MFCs towards real applications.

ELECTROCHIMICA ACTA (2021)

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Review Green & Sustainable Science & Technology

Microfluidic fuel cells with different types of fuels: A prospective review

Yifei Wang et al.

Summary: Microfluidic fuel cells, utilizing microfluidic flows as electrolytes, have shown significant improvements in power output and fuel utilization, with various fuel options being explored. Novel cell designs based on cellulose paper and fabric materials offer promising applications in medical diagnostics, wearable health devices, and smart logistics, despite facing competition from conventional plastic cells due to extra pumping requirements.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2021)

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Article Energy & Fuels

Rapid and simple assembly of a thin microfluidic fuel cell stack by gas-assisted thermal bonding

S. R. Mahmoodi et al.

Summary: This paper introduces a gas-assisted thermal bonding (GATB) technique for constructing fuel cells with high specific power density, demonstrated using thin polymethylmethacrylate (PMMA) substrates.

APPLIED ENERGY (2021)

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Article Thermodynamics

New insight on the mechanism of vibration effects in vapor-feed microfluidic fuel cell

Tiancheng Ouyang et al.

Summary: Fuel cell technology offers long-term energy storage and instant power generation. Microfluidic fuel cells have a broad application prospect due to small size and high power density, with vibration having a positive but limited effect on vapor-feed microfluidic fuel cells.

ENERGY (2021)

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Review Energy & Fuels

Effects of channel geometry and electrode architecture on reactant transportation in membraneless microfluidic fuel cells: A review

Muhammad Tanveer et al.

Summary: This review article focuses on the development of membraneless microfluidic fuel cells, highlighting the microchannel geometry and electrode architecture. It discusses the impact of mixing and depletion regions on performance, as well as the enhancement of mass transfer through effective design of channels and electrodes.

FUEL (2021)

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Article Green & Sustainable Science & Technology

Laser induced graphene electrodes enhanced with carbon nanotubes for membraneless microfluidic fuel cell

Lanka Tata Rao et al.

Summary: Laser-induced graphene (LIG) is a three dimensional porous material with excellent properties, and in this study, a low-cost microfluidic fuel cell with LIG electrodes was proposed. By optimizing parameters, the performance of the fuel cell was enhanced.

SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS (2021)

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Article Chemistry, Physical