本文關(guān)鍵詞： 燃料電池 氧還原反應(yīng) 氮摻雜碳 納米催化劑　出處：《現(xiàn)代化工》2017年10期 　論文類型：期刊論文

【摘要】：通過水熱法合成Zn-MOF材料,并將其高溫?zé)峤庵苽涞玫絑n O@CN納米催化劑。通過X射線衍射譜、掃描電子顯微鏡表征了Zn O@CN的結(jié)構(gòu)和組成。為了探究熱解溫度對Zn O@CN催化性能的影響,將制得的Zn-MOF材料在不同溫度下熱解分別得到Zn O@CN-600、Zn O@CN-700、Zn O@CN-800、Zn O@CN-900,通過氧還原反應(yīng)測試其催化活性。結(jié)果表明,熱解溫度為900℃時制得的Zn O@CN-900起始電勢和半波電勢分別為0.890 V和0.780 V。動力學(xué)研究結(jié)果表明,Zn O@CN-900的電子轉(zhuǎn)移數(shù)約為4,證明氧氣分子在Zn O@CN-900催化劑表面還原采用四電子路徑。
[Abstract]:The Zn-MOF materials were synthesized by hydrothermal method and pyrolyzed at high temperature to obtain ZnOOC CN nanocatalysts. The structure and composition of ZnOOC @ CN were characterized by X-ray diffraction spectroscopy and scanning electron microscope. In order to investigate the effect of pyrolysis temperature on the catalytic performance of ZnO @ CN, the structure and composition of ZnO @ CN were characterized by scanning electron microscope (SEM) and X-ray diffraction spectroscopy (XRD). The prepared Zn-MOF materials were pyrolyzed at different temperatures to obtain Zn-Or CN-600 / Zn-O @ CN-700 Zn-O @ CN-800 Zn-OCN-900 and their catalytic activity was tested by oxygen reduction reaction. The initial potential and half-wave potential of ZnOCN-900 prepared at 900 鈩，

本文編號：1535326