氮摻雜石墨烯的一步法低溫合成及用作微生物燃料電池陰極催化劑的產(chǎn)電特性
發(fā)布時間:2019-02-20 21:07
【摘要】:利用爆炸法低溫合成了氮摻雜石墨烯(NG),并通過高分辨透射電子顯微鏡、X射線光電子能譜儀、Raman光譜儀以及X射線衍射儀對其進行了表征.電化學性能檢測結(jié)果表明,所合成的NG在中性磷酸鹽電解液中具有優(yōu)異的氧還原催化活性,完全能夠與貴重金屬鉑催化劑(Pt/C)相媲美,氧還原催化穩(wěn)定性甚至優(yōu)于Pt/C.當NG用作微生物燃料電池(MFCs)的陰極氧還原催化劑時,在外阻為1000Ω情況下,MFCs的最大功率密度為1345 mW/m2,產(chǎn)電穩(wěn)定性優(yōu)于以Pt/C為陰極催化劑的MFCs,可以成為Pt催化劑的理想替代品.
[Abstract]:Nitrogen-doped graphene (NG),) was synthesized by explosion method at low temperature and characterized by high resolution transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy and X-ray diffractometer. The results of electrochemical performance test show that the synthesized NG has excellent catalytic activity for oxygen reduction in neutral phosphate electrolyte, which is comparable to that of platinum catalyst (Pt/C). Catalytic stability of oxygen reduction is even better than that of Pt/C. When NG is used as cathode oxygen reduction catalyst for (MFCs) of microbial fuel cell, the maximum power density of MFCs is 1345 mW/m2, when the external resistance is 1000 惟, and the stability of MFCs is better than that of MFCs, with Pt/C as cathode catalyst. It can be an ideal substitute for Pt catalyst.
【作者單位】: 上海市環(huán)境科學研究院;同濟大學環(huán)境科學與工程學院;中國石油天然氣管道局天津設計院;
【基金】:國家自然科學基金(批準號:51108332) 江蘇省自然科學基金(批準號:BK2011416)資助~~
【分類號】:TM911.4;O643.36
[Abstract]:Nitrogen-doped graphene (NG),) was synthesized by explosion method at low temperature and characterized by high resolution transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy and X-ray diffractometer. The results of electrochemical performance test show that the synthesized NG has excellent catalytic activity for oxygen reduction in neutral phosphate electrolyte, which is comparable to that of platinum catalyst (Pt/C). Catalytic stability of oxygen reduction is even better than that of Pt/C. When NG is used as cathode oxygen reduction catalyst for (MFCs) of microbial fuel cell, the maximum power density of MFCs is 1345 mW/m2, when the external resistance is 1000 惟, and the stability of MFCs is better than that of MFCs, with Pt/C as cathode catalyst. It can be an ideal substitute for Pt catalyst.
【作者單位】: 上海市環(huán)境科學研究院;同濟大學環(huán)境科學與工程學院;中國石油天然氣管道局天津設計院;
【基金】:國家自然科學基金(批準號:51108332) 江蘇省自然科學基金(批準號:BK2011416)資助~~
【分類號】:TM911.4;O643.36
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