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 Emerging core-shell nanostructured catalysts of transition metal encapsulated by two-dimensional carbon materials for electrochemical applications
Tác giả hoặc Nhóm tác giả: Duy Thanh Tran, Tolendra Kshetri, Dinh Chuong Nguyen, Jagadis Gautam, Hoa Van Hien, Nam Hoon Kim, Joong Hee Lee
Nơi đăng: Nano Today Journal; Số: 22;Từ->đến trang: 100-131;Năm: 2018
Lĩnh vực: Kỹ thuật; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT
ABSTRACT
Development of cost-effective, rich-reserve, and highly efficient substitutes to replace the precious metal catalysts is necessary in the field of electro-catalysis to reduce the costs and enhance the efficiency of catalysts. Although, various nonprecious metal catalysts have received much attention, some critical issues still remain in practically applied catalytic processes due to their insufficient activity and poor stability. A novel and potential approach to design catalysts based on nonprecious metal encapsulated by two-dimensional (2D) carbon supporting materials has demonstrated unique advantages in terms of enhanced catalytic activity and stability, especially under harsh operational conditions. This is due to the enriched electrochemical active sites and highly improved interaction between the components by exceptional structural design and alternation of the associated electronic properties. This review highlights the recent advancement of state-of-the-art research on the synthesis, morphology, properties, and applications of the transition metal-based catalysts encapsulated in 2D-carbon supporting material hybrids. The pros and cons of various synthesis methods are discussed in detail to understand the relationships between such unique morphology/structure and physicochemical properties for enhanced catalytic performance. In addition, their potential electrochemical applications are also emphasized, including biosensors, supercapacitors, batteries, fuel cells, and water splitting. Finally, the current challenges in fundamental research and practical applications, and forthcoming opportunities for these promising materials, are also briefly discussed.
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