Nanotechnology in Battery Electrodes
12 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary advantage of integrating nanotechnology in battery electrodes?

  • Increased melting point of V2O5
  • Enhanced overall efficiency and prolonged battery life (correct)
  • Reduced cost of production
  • Improved structural stability of Transition Metal Oxides

What is the oxidation state range of V2O5?

  • V4+ to V8+
  • V1+ to V3+
  • V3+ to V7+
  • V2+ to V5+ (correct)

What is the approximate band gap of Vanadium pentoxide?

  • 2.3 eV (correct)
  • 1.5 eV
  • 3.0 eV
  • 4.5 eV

What is the typical color of Vanadium pentoxide?

<p>Pale or yellow (D)</p> Signup and view all the answers

What is the main application of V2O5 in Li-air battery setups?

<p>Catalyst that enhances specific capacity (B)</p> Signup and view all the answers

What did Lu's group integrate V2O5 as in a solid-state battery?

<p>Positive electrode (A)</p> Signup and view all the answers

What is the advantage of using NiO nanoparticles compared to bulk NiO particles?

<p>Enhanced optical, electrical, magnetic, and catalytic properties (A)</p> Signup and view all the answers

What is the theoretical capacity of nickel oxide?

<p>718 mA h g-1 (B)</p> Signup and view all the answers

What is the result of minimal N-doping in carbon?

<p>Enhanced electrical conductivity (D)</p> Signup and view all the answers

What is the saturation magnetization (Ms) of the Ni3V2O8-NC composite?

<p>35.99 emu/g (B)</p> Signup and view all the answers

What is the reason for the superior strength of the carbon-nitrogen bond?

<p>Accelerated charge transfer between nitrogen and carbon atoms (B)</p> Signup and view all the answers

What is the advantage of combining nickel and vanadium oxides into nanocomposites?

<p>Enhanced photocatalytic activity (D)</p> Signup and view all the answers
Use Quizgecko on...
Browser
Browser