Vải dẫn điện linh hoạt cao với cấu trúc nano amorphous nickel tungsten tetraoxide được phân tầng cho việc lưu trữ năng lượng điện hóa nâng cao

Nano Research - Tập 8 - Trang 3749-3763 - 2015
Goli Nagaraju1, Ramesh Kakarla2, Sung Min Cha1, Jae Su Yu1
1Department of Electronics and Radio Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, Gyeonggi-do, Republic of Korea
2Department of Environmental Science and Engineering, Kyung Hee University, Yongin-si, Gyeonggido, Republic of Korea

Tóm tắt

Nanostructures (NSs) nickel tungsten tetraoxide vô định hình (NiWO4) đã được tổng hợp thành công trên vải dẫn điện linh hoạt (CF) bằng phương pháp lắng đọng điện hóa đơn giản một bước. Với điện áp âm bên ngoài được áp dụng (–1,8 V trong 15 phút), các NSs NiWO4 vô định hình với hình thái giống như burls đã bám chặt vào nền CF được phủ hạt giống. Các NSs NiWO4 vô định hình giống như burls trên CF (NiWO4 NSs/CF) được sử dụng làm điện cực linh hoạt và không có chất liên kết cho các tụ điện giả, cho thấy tính chất điện hóa đáng kể với điện dung riêng cao (1.190,2 F/g ở 2 A/g), độ ổn định chu kỳ xuất sắc (92% ở 10 A/g) và khả năng nhanh nhạy tốt (765,7 F/g ở 20 A/g) trong dung dịch điện phân KOH 1 M. Những tính chất điện hóa vượt trội này có thể được quy cho cấu trúc phân tầng và diện tích bề mặt riêng lớn của các NSs NiWO4 vô định hình giống như burls/CF. Phương pháp đơn giản hiệu quả chi phí này để tổng hợp vật liệu nanometal tungsten tetraoxide trên CF linh hoạt có thể hứa hẹn cho các ứng dụng thiết bị điện tử và lưu trữ năng lượng tiên tiến.

Từ khóa

#nickel tungsten tetraoxide #nanostructures #electrochemical deposition #flexible conductive fabric #energy storage #pseudocapacitors

Tài liệu tham khảo

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