Development of a novel cost effective methanol electrolyzer stack with Pt-catalyzed membrane

Sethu, Sundar Pethaiah; Sasikumar, Gangadharan; Chan, Siew Hwa; Stimming, Ulrich

doi:10.1016/j.jpowsour.2013.12.103

Cited by 33 publications

(29 citation statements)

References 23 publications

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“…In Figure 7, the same strong peak for all membranes at 2θ = 16.5 is visible and is linked with the crystalline peak of Nafion. 41 The second peak near 40 in all Nafion and composite membranes refers to polyfluorocarbon chains in the Nafion structure. With increased eggshell content in the composite membrane, this peak becomes broader.…”

Section: X-ray Diffractionmentioning

confidence: 99%

Potential of Nafion /eggshell composite membrane for application in direct methanol fuel cell

2020

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Summary Direct methanol fuel cells (DMFCs) have great potential for portable electronics applications. However, several problems, such as methanol crossover and the cost of Nafion membranes, restrict the commercialisation of this technology. The main objective of this study was to produce a high‐selectivity membrane from waste material. Following the current trend of ‘waste‐to‐wealth’, eggshell powder is selected as the filler in the Nafion matrix. The materials are analysed using physical and electrochemical characterisation. The composite membrane with a 3 wt% filler content resulted in the highest selectivity of 28.73 × 104 S s cm−3, proton conductivity of 0.2414 S cm−1 and methanol permeability of 8.40 × 10−7 cm2 s−1. The single‐cell performance test shows that the power density is 19.34 mW cm−2 for the composite membrane and that it has comparable performance with a commercial Nafion 117 membrane. These results confirm the potential of eggshell powder to be incorporated as a filler in a Nafion matrix for applications in DMFC.

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Section: X-ray Diffractionmentioning

confidence: 99%

Potential of Nafion /eggshell composite membrane for application in direct methanol fuel cell

2020

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“…The H 2 requirement of the HT-PEMFC was used to design ME. The ME design parameter values can be determined according to Equation (21). The cell number of ME is given below:…”

Section: Electrolyzer Calculationmentioning

confidence: 99%

“…The methanol electrolyzer (ME) separates the chemical bonds formed in the methanol electro‐oxidation using electrical energy to produce CO 2 and H 2. 21 ME is a promising method as the operating voltage requires only theoretically 0.02 V and practically 0.4 V 22 . The ME working reaction is given the following equation;

normalC H_{3} OH + H_{2} normalO \to normalC O_{2} + 3 H_{2} .

…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of hybrid solar‐wind‐hydrogen energy system based on methanol electrolyzer

Budak

Devrim

2020

Int J Energy Res

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In this study, it is aimed to meet the annual electricity and heating needs of a house without interruption with the photovoltaic panel, wind turbine, methanol electrolyzer, and high temperature proton exchange membrane fuel cell system. The system results show that the use of the 2 WT with 18 PV was enough to provide the need of the methanol electrolyzer, which provides requirements of the high temperature proton exchange membrane fuel cell. The produced heat by the fuel cell was used to meet the heat requirement of the house with combined heat and power system. Electrical, thermal and total efficiencies of fuel cell system with combined heat and power were obtained as 38.54%, 51.77% and 90%, respectively. Additionally, the levelized cost of energy of the system was calculated as 0.295 $/kWh with combined heat and power application. The results of this study show that H 2 is useful for long-term energy storage in off-grid energy systems and that the proposed hybrid system may be the basis for future H 2-based alternative energy applications.

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“…To reduce direct‐power input to the electrolysis system and reduce the RE source footprint, several new water coelectrolysis processes have been proposed. These involve adding large surface area and high‐purity carbon (from coal or biomass), or alcohols such as methanol or ethanol, to water for coelectrolysis (Giddey, Kulkarni, & Badwal, ; Ju, Giddey, & Badwal, ; Ju, Giddey, Badwal, & Mulder, ; Lamy, Jaubert, Baranton, & Coutanceau, ; Sethu, Gangadharan, Chan, & Stimming, ; Yang et al, ). The operating principles of these processes are depicted in Figure .…”

Section: Emerging Hydrogen‐production Technologiesmentioning

confidence: 99%

Emerging technologies, markets and commercialization of solid‐electrolytic hydrogen production

Badwal

Giddey

Munnings

2018

WIREs Energy & Environment

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Around 60 million tons of hydrogen are generated globally each year, 96% of which is produced from fossil fuels. Very little hydrogen is used as energy media; instead, it is most commonly used in nonenergy‐related applications, such as the production of ammonia, fertilizer, methanol and other chemicals, the petrochemical industry, and the hydrogenation of products. However, there is a clear global shift in the use of hydrogen, which is now rapidly developing as a renewable fuel for both stationary and transport applications. Hydrogen can be transported in compressed form at high pressures, in liquid form at –253°C, or more conveniently converted to liquid fuels for easy transportation from locations high in renewable‐energy intensity to areas scarce in renewable resources. In the last 5 years there has been a significant advancement in the scale of solid‐electrolyte demonstrations with a number of megawatt (MW) class products under operation for onsite hydrogen generation, power to gas networks, and storage at multiple sites. This manuscript, building on our previous WIRES publication, discusses the commercialization status of renewable hydrogen‐generation technologies, along with advances in research and development linked to electrolytic hydrogen generation, use, and transportation in the form of liquid fuels such as ammonia, methanol, or dimethyl ether. This article is categorized under: Fuel Cells and Hydrogen > Science and Materials Fuel Cells and Hydrogen > Systems and Infrastructure

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Development of a novel cost effective methanol electrolyzer stack with Pt-catalyzed membrane

Cited by 33 publications

References 23 publications

Potential of Nafion /eggshell composite membrane for application in direct methanol fuel cell

Potential of Nafion /eggshell composite membrane for application in direct methanol fuel cell

Evaluation of hybrid solar‐wind‐hydrogen energy system based on methanol electrolyzer

Emerging technologies, markets and commercialization of solid‐electrolytic hydrogen production

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