Experimental investigations on the effect of current collector open ratio on the performance of a passive direct methanol fuel cell with liquid electrolyte layer

Boni, Muralikrishna; Rao, S. Srinivasa; Golagani, Naga Srinivasulu; Manupati, Sateesh Kumar

doi:10.1007/s11696-020-01277-0

Cited by 12 publications

(5 citation statements)

References 29 publications

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“…The Pt-Ru/black catalyst improves the catalyst's poisoning tolerance and stability. Due to the smaller thickness and increased porosity of the catalyst, a single layer of Pt-Ru/black catalyst on the anode side enhances the tendency of MCO [20].…”

Section: Resultsmentioning

confidence: 99%

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Comparison of the Anode Side Catalyst Supports with and without Incorporation of Liquid Electrolyte Layer on the Performance of a Passive Direct Methanol Fuel Cell

Boni,

Velisala,

Kattela

et al. 2023

International Journal of Energy Research

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In the passive direct methanol fuel cell (DMFC) operation, the catalyst plays an important role in electrical energy production. Efficient catalyst support increases the power output and simultaneously decreases irreversible losses in the fuel cell (FC). Effective utilization of methanol at the anode end reduces methanol crossover by selecting good anode catalyst supports. In the present study, two types of anode catalyst support of carbon and carbon black are used. The two types of anode catalysts are Pt-Ru/C+ Pt-Ru/black and Pt-Ru/C along with a 2 mm thick liquid electrolyte (LE) layer placed in the middle of the two half MEAs. The LE layer is made of piled hydrophilic filter papers, which are soaked in a solution of 1 M H2SO4 concentration. The methanol concentration is varied from 1 M to 12 M and from 1 M to 5 M with and without LE-inserted FC, respectively. The passive DMFC with Pt-Ru/C+ Pt-Ru/black anode catalyst and the LE layer exhibit the best performance, producing an MPD of 5.328 mWcm-2 at a 5 M methanol concentration. The MPD produced by the anode catalyst of Pt-Ru/C+ Pt-Ru/black and Pt-Ru/C along with the 2 mm thickness LE layer incorporated fuel cell is 75.26% higher than conventional-based FC of anode catalyst of single-layer catalyst of Pt-Ru/C.

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Section: Resultsmentioning

confidence: 99%

“…Boni et al [19][20][21] experimentally analyzed the passive DMFC performance effect with the addition of the LE layer. It was found that an optimized thickness of 2 mm produced MCD and MPD at 5 mol/cm 3 (5 M) methanol concentration.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Anode Side Catalyst Supports with and without Incorporation of Liquid Electrolyte Layer on the Performance of a Passive Direct Methanol Fuel Cell

Boni,

Velisala,

Kattela

et al. 2023

International Journal of Energy Research

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“… 34 The Constant Phase Element (CPE) describes the realistic reaction conditions with the porous electrode and rough interface structures of cathode and anode. 35 The ECM parameters can be identified by fitting the model to the EIS curves. The results are listed in Table 5 .…”

Section: Resultsmentioning

confidence: 99%

Cathode diffusion layer and current collector with slotted foam stainless steel for a micro direct methanol fuel cell

Zhao

Wang

et al. 2022

RSC Adv.

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“…However, as pointed out, despite the good results achieved with the SAP-based "solid methanol" fuel, this material needs to be produced in advance, rendering it unsuitable for continuous supply. Another variation was reported in the comprehensive study performed by Boni et al [126], where the effect of two ACLs (PtRu/black and PtRu/C), as well as the CC open ratio, on the performance of a PS-DMFC was investigated, along with the incorporation of a liquid electrolyte (LE) layer. The LE layer consisted of piled hydrophilic filter papers, which were soaked in a diluted sulfuric acid solution and introduced between two Nafion ® membranes.…”

Section: Acidic Dmfcsmentioning

confidence: 99%

Passive Small Direct Alcohol Fuel Cells for Low-Power Portable Applications: Assessment Based on Innovative Increments since 2018

2022

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Passive small direct alcohol fuel cells (PS-DAFCs) are compact, standalone devices capable of electrochemically converting the chemical energy in the fuel/alcohol into electricity, with low pollutant emissions and high energy density. Thus, PS-DAFCs are extremely attractive as sustainable/green off-grid low-power sources (milliwatts to watts), considered as alternatives to batteries for small/portable electric and electronic devices. PS-DAFCs benefit from long life operation and low cost, assuring an efficient and stable supply of inherent non-polluting electricity. This review aims to assess innovations on PS-DAFC technology, as well as discuss the challenges and R&D needs covered on practical examples reported in the scientific literature, since 2018. Hence, this compilation intends to be a guidance tool to researchers, in order to help PS-DAFCs overcome the barriers to a broad market introduction and consequently become prime renewable energy converters and autonomous micropower generators. Only by translating research discoveries into the scale-up and commercialization process of the technology can the best balance between the economic and technical issues such as efficiency, reliability, and durability be achieved. In turn, this will certainly play a crucial role in determining how PS-DAFCs can meet pressing sustainable energy needs.

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Experimental investigations on the effect of current collector open ratio on the performance of a passive direct methanol fuel cell with liquid electrolyte layer

Cited by 12 publications

References 29 publications

Comparison of the Anode Side Catalyst Supports with and without Incorporation of Liquid Electrolyte Layer on the Performance of a Passive Direct Methanol Fuel Cell

Comparison of the Anode Side Catalyst Supports with and without Incorporation of Liquid Electrolyte Layer on the Performance of a Passive Direct Methanol Fuel Cell

Cathode diffusion layer and current collector with slotted foam stainless steel for a micro direct methanol fuel cell

Passive Small Direct Alcohol Fuel Cells for Low-Power Portable Applications: Assessment Based on Innovative Increments since 2018

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