This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What are the disadvantages to the alkaline fuel cell (AFC) that make it more expensive to operate ... (Read 93 times)

penguins

  • Hero Member
  • *****
  • Posts: 903
on: Jul 26, 2018
What are the disadvantages to the alkaline fuel cell (AFC) that make it more expensive to operate than other fuel cells?
 
  What will be an ideal response?

Question 2

Describe the operation of a direct-methanol fuel cell (DMFC).
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

morrie123456

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 26, 2018
Answer to Question 1

The primary disadvantage is the requirement for pure oxygen and pure hydrogen. The fuel cell is also poisoned easily by CO2 and they have a shorter average lifetime than other fuel cell, making them less cost effective.

Answer to Question 2

Methanol and water is supplied to the fuel cell and hydrogen is extracted from the methanol by a steam reformer. Electrons are released from the hydrogen at the anode and travel through the external circuit to the cathode as electrical current. Oxygen is from air is ionized at the cathode and oxygen ions combine with hydrogen ions to form water.


penguins

  • Hero Member
  • *****
  • Posts: 903
Reply #2 on: Jul 26, 2018
TY


morrie123456

  • Sr. Member
  • ****
  • Posts: 314
Reply #3 on: Jul 26, 2018
You're welcome


« previous next »
 

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Cell culture in a Petri dish Cell culture in a Petri dish
meiotic cell division meiotic cell division
Firing Pattern of a REM-ON Cell Firing Pattern of a REM-ON Cell
Membrane potential of a cell permeable to potassium only. Membrane potential of a cell permeable to potassium only.
Carbohydrate, Fat, and Protein Fuel Exercise Carbohydrate, Fat, and Protein Fuel Exercise
Cytotoxic T Cell Killing a Cancer Cell Cytotoxic T Cell Killing a Cancer Cell
Video: Introduction to Spirometry

For a complete list of videos, visit our video library