We have a tendency to think CO2 is negative. Because of Global warming. But, In other face, CO2 is very useful to use.
As you can see we use Co2 in various ways. For example, in our lives, we can see Co2 in beverages, and in concert, we see Co2 in form of gas.
Anyway, Today I explain to you about this, Electrochemical reaction. We convert Co2 to other materials using electrochemical reaction.
Experimental Setup
Three electrode cell Working electrode : Composite electrode
active material + conducting material + binder
LiCoO2
carbon PVDF
Counter electrode & reference electrode : lithium foil
Electrolyte : Li salt IN non-aqueous solvent
Li salt : LiPF6, LiBF4, LiClO4…
Solvent : EC, PC, DMC, DME…
Lab. of Energy Conversion & STORAGE Materials
Fig.
Introduction
Fossil fuels
- Main Energy Source
- Causing global warming
- Being exhausted
→ need
alternative energy
Hydrogen is one of well-known clean energy source.
Several technologies are already available in the marketplace for the industrial production of hydrogen.
Hydrogen can be produced from a variety of feedstocks.
A variety of process technologi
electrochemical device and therefore, there is no high-temperature step as normal burning. This direct conversion of chemical energy to electrical energy is more efficient and generates much less pollutions than do traditional methods that rely on combustion.
Fuel Cell Functionality
Fuel cells generate electricity from a simple electrochemical reaction in which an oxidizer, typically oxyge
Pros- Unlike regular fuel cell, MBFC can make energy in very mild condition.- MBFC can produce energy by consume variety organics.
Cons- MBFC need electrochemical mediator this mediator generally not degradable and very poisonous. so mediator can make 2nd pollution.- Output is low and unstable compared to general fuel cell.
The need for MBFC
Waste processing caused sludg
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THE SOUND OF DRUMSfrom a great distancegrowing louder.
FADE IN:
WE ARE FLYING through
[ Introduction ]
Ⅰ. Need Of Alternative Energy
The need for alternative energy sources is getting urgent, hence the development of renewable energy is moving fast. Nationally and internationally various individuals and research companies are creating new and exciting energy systems. Some of these apparatus are great works and need improving for massive use. Politician's world-wide are dra
1. 환경과 무기화학
무기공업은 역사가 가장 오래된 공업분야인 동시에 환경과 밀접한 연관성을 가지고 있다. 19세기 초 환상공정은 연실법에 의해 NO2를 산화제로 SO2를 제조하여 많은 NO를 배출 환경공해를 유발하였으나, 이와 혼합가스를 물에 흡수시켜 NO를 제거 가능하게한 Gay-Lussac 탑의 개발로 그
instrument composition
-Electric furnace
Temperature range:
25°C~1500°C
Heat speed :
Maximum 200°C/min
*Separate Electric furnace and other system like Electronic scale
-Because Electric furnace temperature is very high
so we need to protect other system.
instrument composition
-Electric furnace
Temperature range:
25°C~1500°C
Heat speed :
Maximum 200°C/min
*N
염료 감응형 태양전지는 반도체 접합형 태양전지와는 달리, 고체/액체 접합의 광전
기화학형이며 가시광선을 흡수하여 전자-홀 쌍 (electron-hole pair)을 생성할 수 있
는 감응성 염료분자와, 생성된 전자를 전달하는 전이금속 산화물을 주된 구성 재료
로 하는 광전기 화학적 태양전지이다. Fig. 2.2. 에서