A sensor of liquid methanol for direct methanol fuel cells

Dai, Guangjun; Wang, Qingwei; Xue, Shujie; Wang, Guoliang; Zou, Zhiqing; Yu, Nengfei; Huang, Qinghong; Fu, Lijun; Wu, Yuping

doi:10.1016/j.aca.2021.338785

Cited by 5 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There is no doubt that these fossil energy sources are non-renewable and unsustainable. Moreover, the use of these non-renewable energy sources will also lead to increasingly serious environmental pollution, such as the emission of carbon dioxide, sulfur dioxide and other toxic chemicals [1][2][3]. In 2019, Chinese leaders announced that the country would adopt more powerful policies and measures, strive to peak carbon dioxide emissions by 2030, and strive to achieve carbon neutrality by 2060 [4,5].…”

Section: Introductionmentioning

confidence: 99%

Review: Modeling and Simulation of Membrane Electrode Material Structure for Proton Exchange Membrane Fuel Cells

Chen

Liu

et al. 2022

Coatings

View full text Add to dashboard Cite

Hydrogen energy is recognized as the clean energy with the most development potential, and hydrogen fuel cell technology is considered the ultimate solution utilizing hydrogen energy. The proton exchange membrane fuel cell (PEMFC) has the merits of high energy efficiency, high energy density, low operating temperature, is clean, and affords environmental protection. Improving the structure of each functional layer could play a significant role in improving PEMFC performance. In addition, membrane electrode assemblies (MEAs) are the core components of a PEMFC, and their structure includes three main parts, namely, the gas diffusion layer (GDL), catalytic layer (CL), and proton exchange membrane (PEM). Therefore, this review focuses on progress in the modeling and simulation of the material structure in MEAs. First, the GDL simulation models are critically reviewed, including two-phase calculation models and microscopic simulation models. Second, CL microstructure models are comprehensively evaluated, involving power density enhancement, catalyst loading distribution, electrochemical reaction and its performance optimization. Third, the PEM simulation model, relating to molecular dynamics (MD) simulation techniques, 3D numerical techniques, and multiphysics simulation, are reviewed. Finally, the three aspects of similarity, individuality, and complementarity of these simulation models are discussed, and necessary outlooks, including the current limitations and challenges, are suggested, providing a reference for low-cost, high-performing PEMFC membrane electrodes for the future.

show abstract

Section: Introductionmentioning

confidence: 99%

Review: Modeling and Simulation of Membrane Electrode Material Structure for Proton Exchange Membrane Fuel Cells

Chen

Liu

et al. 2022

Coatings

View full text Add to dashboard Cite

show abstract

“…Na et al [10] develop a temperature independent empirical equivalence of the dynamic response of cell voltage to step changes in current with methanol concentration. They reported that their detection method was able to measure methanol concentration with an accuracy of ±0.1 M. Dai et al [11] developed an electrochemical methanol sensor based on current output limited by methanol diffusion through a porous PTFE membrane for DMFCs. They developed an equation that gives the relationship between temperature, current, and methanol concentration.…”

Section: Introductionmentioning

confidence: 99%

Determination of methanol concentration for DMFC systems by fuel cell‐based sensor

2022

View full text Add to dashboard Cite

Direct methanol fuel cells are devices that convert the chemical energy of methanol fuel having high energy density directly into electrical energy by electrochemical reactions. Methanol must be supplied to the fuel cell system as an aqueous solution to complete the reaction. Therefore, controlling and adjusting of methanol ratio in the methanol‐water mixture is critical for the continuity of direct methanol fuel cell performance. In this study, two fuel cell‐based electrochemical sensors are developed to adjust the amount of methanol in an aqueous solution in a direct methanol fuel cell. The experimental setup is prepared for the developed sensors and the effects of parameters, such as temperature, methanol flow rate, oxidizing effect, and methanol concentration, affecting the sensor performance are observed experimentally. It is observed that the experimental results obtained in the design without air input are more stable than that of the sensor working with air. However, in air‐independent design, the measurement value lost its stability after 2M concentration. The change in methanol flow rate did not cause any change in either sensor. High temperature and low methanol concentrations are found to be the main criteria for the best sensor performance.

show abstract

Samarium doped nickel oxide supported on 2D-hexagonal boron nitride nanosheets for electrochemical sensing of Acetaminophen

Prajapati

Singh

Gautam

et al. 2023

Materials Research Bulletin

View full text Add to dashboard Cite

A sensor of liquid methanol for direct methanol fuel cells

Cited by 5 publications

References 26 publications

Review: Modeling and Simulation of Membrane Electrode Material Structure for Proton Exchange Membrane Fuel Cells

Review: Modeling and Simulation of Membrane Electrode Material Structure for Proton Exchange Membrane Fuel Cells

Determination of methanol concentration for DMFC systems by fuel cell‐based sensor

Samarium doped nickel oxide supported on 2D-hexagonal boron nitride nanosheets for electrochemical sensing of Acetaminophen

Contact Info

Product

Resources

About