-Thermo-chemical water splitting
For example, Thermo-chemical water splitting is the conversion of water into hydrogen and oxygen by a series of thermally driven chemical reactions. Thermo-chemical water-splitting cycles have been known for the past 35 years. They were extensively studied in the late 1970s and 1980s, but have been of little interest in the past 10 years. While there is no
Sulfur Dioxide(SO2)
The release of SO2 to the atmosphere is the primary cause of acid rain in the world.
Fossil fuel combustion at electric power-generating plants accounts for about70% of
the emissions.
Coal, Oil, and all other fossil fuels naturally
contain some sulfur.
Volcanic eruptions are another more localized natural source of SO2
SO2 + OH. HSO3.
HS
4. Dopant Barrier <불순물 장벽>
- 산화층이 실리콘 표면에서 성장하면 불순물 물질이 wafer로 들어가는 곳에 창을 생성시키기
위해서 Mask 개방으로 SiO2를 식각, 이때 산화물은 dopant의 확산으로부터
silicon의 표면을 보호.
- 선택적인 dopant의 도핑가능
5. 금속층 사이의 유전체
chemical reaction으로부터 나온 열을 흡수하여 temperature buffer로써 역할
- regulate hydrogen ion concentration
reactant : 6CO2 + 6H2O → C6H12O6 + 6O2
c) metabolic reaction의 medium으로써의 역할
d) provides for delivery nutrients into the cells ; water channels also
모든 biomolecule이 물에 녹는 것은 아니다. 이러한 이유가 세포를