Direct Methanol Fuel Cell

Direct methanol fuel cell

Direct Methanol Fuel Cell 1

Direct-methanol fuel cells or DMFCs are a subcategory of proton-exchange fuel cells in which methanol is used as the fuel. Their main advantage is the ease of transport of methanol, an energy-dense yet reasonably stable liquid at all environmental conditions. Efficiency is quite low for these cells, reaching around 10%, so they are targeted especially to portable applications, where energy and power density are more important than efficiency. A more efficient version of a direct fuel cell would play a key role in the theoretical use of methanol as a general energy transport medium, in the hypothesized methanol economy.

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can somebody explain flex fuels uses in new vehicles.?

its made with methanol which uses corn to manufacture,you have to have a flex-fuel engine before you can use it!

Direct Methanol Fuel Cell 2

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Would cyclohexanol react faster than normal alcohols (methanol, ethanol) with HBr?

Well, yes, sort of. After all, cyclohexanol is a 'normal' alcohol, though I am not sure what an 'abnormal' alcohol would be.Perhaps what you are really asking is whether a secondary alcohol, like cyclohexanol, will react more quickly with HBR than a primary alcohol (like ethanol) or methanol. Also, what reaction occurs is also important. I am assuming we are talking about the conversion of cyclohexanol to bromocyclohexane, as shown below.Also shown above is the reaction of a 'normal' alcohol (1-heptanol). Note that both reactions result in the formation of the corresponding bromo-derivative but that the reaction for the normal alcohol has to be conducted at higher temperatures than for the cyclohexanol bromocyclohexane reaction.Would cyclohexanol react faster than normal alcohols (methanol, ethanol) with HBr?

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Which of the following compounds most readily undergoes solvolysis with methanol?

_____Bromo on double bonds are not very reactive to solvolysis and neither is a aliphatic one next to saturated carbons (esp primary one. Br on a carbon next to a C=C bond are as the double bond stabilizes either the SN1 intermediate or the SN2 transition state. Only one has the Bron a C next to a C=C; it is __

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Is ethanol a viable alternate where methanol is specified in the extraction of alkaloids from plant matter?

Usually, but it depends on your extraction procedure. If you are inquiring about psychoactive alkaloids, ask the people over at

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Methanol toxicity

Methanol toxicity is poisoning from methanol. Symptoms may include a decreased level of consciousness, poor coordination, vomiting, abdominal pain, and a specific smell on the breath. Decreased vision may start as early as twelve hours after exposure. Long-term outcomes may include blindness and kidney failure. Toxicity and death may occur even after drinking a small amount. Methanol poisoning most commonly occurs following the drinking of windshield washer fluid. This may be accidental or done purposefully in an attempt to die by suicide. Toxicity may also rarely occur through extensive skin exposure or breathing in fumes. When methanol is broken down by the body it results in formaldehyde, formic acid, and formate which cause much of the toxicity. The diagnosis may be suspected when there is acidosis or an increased osmol gap and confirmed by directly measuring blood levels. Other conditions that can produce similar symptoms include infections, exposure to other toxic alcohols, serotonin syndrome, and diabetic ketoacidosis. Early treatment increases the chance of a good outcome. Treatment consists of stabilizing the person, followed by the use of an antidote. The preferred antidote is fomepizole, with ethanol used if this is not available. Hemodialysis may also be used in those where there is organ damage or a high degree of acidosis. Other treatments may include sodium bicarbonate, folate, and thiamine. Outbreaks have occurred due to contamination of drinking alcohol. This is more common in the developing world. In 2013 more than 1700 cases occurred in the United States. Those affected are usually adult and male. Toxicity to methanol has been described as early as 1856.

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What do i need on my car before doing methanol injection.

The purpose of methanol injection is primarily for cooling the incoming air charge. Turbo charging and super charging an engine heats up the air charge. Methanol injection is used to substantially cool the air and to stabilize combustion. without any kind of forced air induction methanol injection will not increase performance. And can actually do more damage than good.

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