A direct methanol fuel cell

Zerbinati, Orfeo; Mardan, Ali; Richter, Mark M.

doi:10.1021/ed079p829

Cited by 27 publications

(16 citation statements)

References 10 publications

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“…During the methanol oxidation process (a) an aqueous solution of methanol fed from the anode side reaches the electrode surface, gets oxidized, and produces CO 2 along with electron and proton, (b) proton and electrons diffusion occur through a membrane and external circuit, respectively, and (c) oxygen gets reduced at the cathode surface by accepting external electron and internal proton ( Figure 1). 28,29 The reaction is represented as follows: This route on the whole requires a catalyst capable of (a) dissociating the C H bond and (b) expedite the conversion of the resulting residue into CO 2 (or HCOOH) by combining with some O-containing species.…”

Section: Working Of Dmfcmentioning

confidence: 99%

\begin{matrix} lefttrue \\ {CH}_{3} OH + {normalH}_{2} O \to {CO}_{2} + 6 {normalH}^{+} & E^{0} = 0.016 V (vs . SHE) & (Anode reaction) \\ 3 / 2 {normalO}_{2} + 6 {normalH}^{+} + 6 {normale}^{-} \to 3 {normalH}_{2} O & E^{0} = 1.229 V (vs . SHE) & (Cathode reaction) \\ {CH}_{3} OH + 3 / 2 {normalO}_{2} \to {CO}_{2} + 2 {normalH}_{2} O & E^{0} = 1.245 V (vs . SHE) & (Overall reaction) \end{matrix}

…”

Section: Working Of Dmfcmentioning

confidence: 99%

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Recent progress in development of efficient electrocatalyst for methanol oxidation reaction in direct methanol fuel cell

2020

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The human craving for energy is continually mounting and becoming progressively difficult to Gratify. At present, the world's massive energy demands are chiefly encountered by nonrenewable and benign fossil fuels. However, the development of dynamic energy cradles for a gradually thriving world to lessen fossil fuel reserve depletion and environmental concerns are persistent issues for society at present. The discovery of copious nonconventional resources to fill the gap between energy petition and supply is the extreme obligation of the modern era. A new emergent, clean, and robust alternate of fossil fuels are the fuel cells. Among the different types of fuel cells, direct methanol fuel cells are an outstanding option for light-duty vehicles and portable devices. A critical tactic for striving and sustainable energy sources is the production of highly proficient, economical, and green catalysts for energy storage and conversion devices. Up till now a broad range of research work is available to use Pt and modify Ptbased electrocatalysts to augment the CH 3 OH oxidation process. Platinum-based nanocubes, nanorods, nanoflower, hybrids of Pt with metal-oxides such as Fe 2 O 3 , TiO 2 , SnO 2 , MnO, Cu 2 O, ZnO, and with conducting polymers are extensively utilized in both acidic and basic media. Moreover, Pd-based materials, transition metal-based materials as well as MOF and MOF-derived materials are also the point of interest for researchers nowadays. However, the problem associated with their practical applications is that they can be effectively employed in basic media due to comparative less stability in acidic medium. This review article will deliver a broad vision of the current progress of the MOR process concerning noble metals, transition metals, and MOF-based materials.

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Section: Working Of Dmfcmentioning

confidence: 99%

\begin{matrix} lefttrue \\ {CH}_{3} OH + {normalH}_{2} O \to {CO}_{2} + 6 {normalH}^{+} & E^{0} = 0.016 V (vs . SHE) & (Anode reaction) \\ 3 / 2 {normalO}_{2} + 6 {normalH}^{+} + 6 {normale}^{-} \to 3 {normalH}_{2} O & E^{0} = 1.229 V (vs . SHE) & (Cathode reaction) \\ {CH}_{3} OH + 3 / 2 {normalO}_{2} \to {CO}_{2} + 2 {normalH}_{2} O & E^{0} = 1.245 V (vs . SHE) & (Overall reaction) \end{matrix}

…”

Section: Working Of Dmfcmentioning

confidence: 99%

Recent progress in development of efficient electrocatalyst for methanol oxidation reaction in direct methanol fuel cell

2020

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“…As such, it is an interesting research area to improve the efficiency of fuel cell technology [1][2][3] . DMFC is an attractive choice because it removes the need for a reformer system and uses an attractive fuel such as methanol, which has low price, and is easy to handle, store and transport 4 . However, it still needs further improvement to overcome several problems of methanol electro-oxidation reaction using platinum (Pt) catalyst, which is mostly used as the anode compartment in fuel cell.…”

Section: Introductionmentioning

confidence: 99%

“…PtRu is considered to be the best available anodic material for DMFC 7,8 . This catalytic mechanism has been recognized by a bifunctional model and ligand or electronic effect model 4,6,9 . The binary PtRu catalyst can be prepared in various forms such as PtRu alloys, PtRu/C, Ru electrodeposited on Pt, PtRu co-deposited, and Ru adsorbed on Pt.…”

Section: Introductionmentioning

confidence: 99%

“…The PtRu alloys can be easily prepared by chemical reduction process at room temperature, producing a very small and homogeneous particle. One of the reduction process is the Takenaka-Torikai method (T-T method), which gives high surface roughness by coating the reactive catalyst metals on the solid polymer electrolyte (SPE) membrane such as polyperfluorosulfonic acid membrane or Nafion ® membrane [3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

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Ratana¹,

Amornpitoksuk²,

Veerasai³

2006

ScienceAsia

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Nano-sized of Pt and PtRu particles on solid polymer electrode (SPE) membrane were prepared by the modified Takenaka-Torika (T-T) method. The morphological characteristics and catalyst compositions were also studied on the Pt-and PtRu-SPEs. The electrodes were characterized using electrochemical measurements, scanning electron microscope with electron dispersive microscope (SEM-EDX) and X-ray diffraction analysis. The well-dispersed Pt and PtRu alloy nanoparticles with crystallite size of 12-6 nm were obtained in the preparation. The differences in morphology of the nano-, micro-structure and composition of these catalysts effected the electro-catalytic activity of methanol electro-oxidation reaction. The electrochemical result showed that the mole ratio between Ru and Pt at 0.10 was the best condition for the methanol electro-oxidation reaction in partial cell study.

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Bi‐Co‐Cu Metal Oxide Foam as Significant Electrocatalyst for Methanol Electrooxidation

et al. 2020

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Transition metals and metal oxides are carrying out vibrant role in electrooxidation of methanol. Unfortunately, the unclear cognition of methanol oxidation reaction (MOR) mechanism hampers the development of high performance electrocatalysts. Thus, in this report, a fascinating MOR mechanism has been studied using CoCuBi oxide foam structure, where the (220) plane of CoCuBi oxides are playing an exciting role in an unprecedented mechanism. Interestingly, the (220) plane belongs to the families of plane, where transition metal oxides prefer Eley‐Rideal (ER) mechanism with concomitant reduction in the poisoning effect due to CO. The synergetic effect of these planes triggers the excellent current density of 118 mA/cm2 with 50% retention of activity even after 10 h stability test. X‐ray photoelectron spectroscopy (XPS) and X‐ray diffraction (XRD) studies revealed different oxidation states of metal ions indicating formation of mixed oxides along with different phase formation in CoCuBi foam structure. More excitingly, CoCuBi nanocomposites show remarkable electrochemical methanol oxidation to form specific product such as formate, which is strongly confirmed by proton NMR spectroscopy.

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A direct methanol fuel cell

Cited by 27 publications

References 10 publications

Recent progress in development of efficient electrocatalyst for methanol oxidation reaction in direct methanol fuel cell

Recent progress in development of efficient electrocatalyst for methanol oxidation reaction in direct methanol fuel cell

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Bi‐Co‐Cu Metal Oxide Foam as Significant Electrocatalyst for Methanol Electrooxidation

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