An analytical model for alkaline membrane direct methanol fuel cell

“…Among various alcohols used for FCs, methanol is considered one of the most promising alternative fuels from a non-petroleum source. The electrochemical process of direct methanol fuel cells (DMFCs) is a coupled process of electrochemical reactions and transport phenomena of ions and methanol occurring simultaneously in a complex procedure [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Electrosynthesized Ni-Al Layered Double Hydroxide-Pt Nanoparticles as an Inorganic Nanocomposite and Potentate Anodic Material for Methanol Electrooxidation in Alkaline Media

Habibi

Ghaderi

2016

Bull. Chem. React. Eng. Catal.

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In this study, Ni-Al layered double hydroxide (LDH)-Pt nanoparticles (PtNPs) as an inorganic nanocomposite was electrosynthesized on the glassy carbon electrode (GCE) by a facile and fast two-step electrochemical process. Structure and physicochemical properties of PtNPs/Ni-Al LDH/GCE were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectrometry and electrochemical methods. Then, electrocatalytic and stability characterizations of the PtNPs/Ni-Al LDH/GCE for methanol oxidation in alkaline media were investigated in detail by cyclic voltammetry, chronoamperometry, and chronopotentiometry measurements. PtNPs/Ni-Al LDH/GCE exhibited higher electrocatalytic activity than PtNPs/GCE and Ni-Al LDH/GCE. Also, the resulted chronoamperograms indicated that the PtNPs/Ni-Al LDH/GCE has a better stability.

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“…As demand to reduce emerging environmental and energy-related global issues has increased, enormous attention has been paid to the development of green and sustainable resources for energy conversion and storage applications. Direct methanol fuel cells (DMFCs), in which the chemical energy of a fuel is directly converted to useful electrical energy through electrochemical reactions ( Figure 1A), are of particular importance due to their unique advantages, such as high power density, minimized pollutant emission, long operational time, and good safety [1,2]. One of the major obstacles in DMFC technology is the sluggish kinetics of the oxygen reduction reaction (ORR), which occurs at the cathode.…”

Section: Introductionmentioning

confidence: 99%

Iron Phthalocyanine/Graphene Composites as Promising Electrocatalysts for the Oxygen Reduction Reaction

Park

Chang

2020

Energies

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Recently, the development of non-precious electrocatalysts for the oxygen reduction reaction (ORR) has become important in replacing currently employed platinum (Pt)-based catalysts. Although Pt-based catalysts exhibit satisfactory ORR performances, their high price, easy methanol/CO2 poisoning, and poor long-term stability significantly hamper the forward movement of fuel cell technology. Among the various candidates, graphene-supported iron phthalocyanine (FePc) composites have attracted great attention because of their unique advantages, including low cost, good dimensional stability, high durability, and tunable catalytic activity. In the composite catalyst, FePc molecules are immobilized on graphene via noncovalent or covalent interactions. In addition, two-dimensional graphene substrates can improve not only the electrical conductivity of the composite, but also the dispersion of FePc molecules, triggering a significant improvement in the catalytic properties of the composite catalyst. Herein, we summarize the recent advances in FePc/graphene composite catalysts used for the ORR. Moreover, we discuss the challenges and future perspectives of this promising field.

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An analytical model for alkaline membrane direct methanol fuel cell

Cited by 30 publications

References 49 publications

An analytical model for hydrogen alkaline anion exchange membrane fuel cell

An analytical model for hydrogen alkaline anion exchange membrane fuel cell

Electrosynthesized Ni-Al Layered Double Hydroxide-Pt Nanoparticles as an Inorganic Nanocomposite and Potentate Anodic Material for Methanol Electrooxidation in Alkaline Media

Iron Phthalocyanine/Graphene Composites as Promising Electrocatalysts for the Oxygen Reduction Reaction

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