인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
The one-step carbonization of low cost and abundant chitosan biopolymer in the presence of salt eutectics ZnCl<sub>2</sub>/NaCl results in nitrogen-doped carbon nanostructures (8.5 wt.% total nitrogen content). NaCl yields the spacious 3D structure, which allows external oxygen to easily reach the active sites for the oxygen reduction reaction (ORR) distinguished by their high onset potential and the maximum turnover frequency of 0.132 e site⁻<sup>1</sup> s⁻<sup>1</sup>. Data show that the presence of NaCl during the synthesis exhibits the formation of pores having large specific volumes and surface (specific surface area of 1217 m<sup>2</sup> g<sup>-1</sup>), and holds advantage by their pores characteristics such as their micro-size part, which provides a platform for mass transport distribution in three-dimensional N-doped catalysts for ORR. It holds benefit over sample pre-treated with LiCl in terms of the micropores specific volume and area, seen as their percentage rate, measured in the BET. Therefore, the average concentration of the active site on the surface is larger.
#Chemistry
#Biopolymer
#Carbon fibers
#Oxygen
#Carbonization
#Specific surface area
#Nitrogen
#Pyrolysis
#Catalysis
#Salt (chemistry)
#Chemical engineering
#Electrochemistry
#Chitosan
#BET theory
#Inorganic chemistry
#Base (topology)
#Adsorption
#Materials science
#Organic chemistry
#Physical chemistry
#Composite material
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