Chan 發問於 科學及數學化學 · 1 十年 前

如何產生氫氣

氫氣被視為未來環保救星主因是它來源廣,但如何從氧氣、二氧化碳、水等分解出來.

3 個解答

評分
  • 1 十年 前
    最佳解答

    Water is the richest source of hydrogen. If we can use the hydrogen from water as a fuel, it will be perfect. Practically, by eectrolysis, we can get the hydrogen easily from water. However, this method change one the chemical energy from one form to another form. In fact, this conversion is a waste of energy since there is always a waste of enrgy during energy transfer according to the thermodynamics rules. The most effective method is to utilize the solar energy to split the hydrogen and oxygen from the water. In this case, we are converting the solar energy into the chemical energy. The principle is just like what the plant doing in photosynthesis in which the carbon is fixed in the form of carnobhydrate to provide energy to the living organisms. In fact, a lot of researchs have been done but none of them has been practically use in our daily life.

    • 登入以回覆解答
  • 1 十年 前

    電解法:

    把食鹽溶入水中,進行電解,陽極產生氯氣,陰極產生氫

    以來 烴裂解法、烴蒸氣轉化法、煉廠氣提取法

    2006-11-18 20:41:53 補充:

    氧氣、二氧化碳的成分沒有氫,不能分解出氫氣

    2006-11-18 20:43:20 補充:

    錯字 以(來)---以(及) sorry

    資料來源: 維基
    • 登入以回覆解答
  • 1 十年 前

    氧氣(O2)、二氧化碳(CO2)應該製唔到氫氣, 因為沒有氫(H)的成份

    而水(H2O)就可以用電解, 會出氫氣(H2)同氧氣(O2)

    資料來源: own chem
    • 登入以回覆解答
還有問題嗎?立即提問即可得到解答。