Tổng hợp và đánh giá hiệu quả điện hóa của điện cực Manganese–Graphene oxide trên nền bọt nickel cho phản ứng oxi hóa glycerol
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Từ khóa:
Manganese
graphene oxide
nền bọt nickel
điện hóa oxi hóa glycerol
sản xuất hydrogen
Tóm tắt
Trong nghiên cứu này, điện cực Mn-Graphene oxide trên nền bọt nickel (Mn-GO@NF) đã được tổng hợp thành công bằng phương pháp thủy nhiệt và được ứng dụng cho phản ứng oxi hóa điện hóa glycerol. Nhờ sự kết hợp giữa manganese và graphene oxide, điện cực Mn-GO@NF thể hiện hoạt tính xúc tác tốt và độ bền điện hóa cao trong môi trường kiềm chứa glycerol. Điện cực đạt mật độ dòng 50 mA·cm-2 ở điện thế khoảng 1,61 V so với RHE và duy trì hoạt động ổn định trong 21 giờ. Phân tích phổ trở kháng điện hóa cho thấy điện cực Mn-GO@NF có điện trở truyền điện tích thấp hơn, phản ánh động học phản ứng thuận lợi hơn. Ngoài ra, trong cấu hình hai điện cực Mn-GO@NF‖Mn-GO@NF, hệ điện phân yêu cầu điện áp khoảng 1,96 V để đạt mật độ dòng điện 40 mA·cm⁻². Những kết quả này cho thấy điện cực Mn-GO@NF có tiềm năng ứng dụng làm anode thay thế cho phản ứng OER truyền thống trong các hệ điện phân sản xuất hydrogen.
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Cách trích dẫn
Nga, P. T. H., N. C. Chiến, T. L. Bích Trâm, và N. Đình Minh Tuấn. “Tổng hợp Và đánh Giá hiệu Quả điện hóa của điện cực Manganese–Graphene Oxide Trên nền bọt Nickel Cho phản ứng Oxi hóa Glycerol”. Tạp Chí Khoa học Và Công nghệ Đại học Đà Nẵng, vol 24, số p.h 5A, Tháng Năm 2026, tr 159-64, doi:10.31130/ud-jst.2026.24(5A).122.
