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학술발표회초록보기

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  • 09월 10일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Large-scale synthesis of high-quality carbon nanoparticles and their electrocatalytic performance

등록일
2019년 8월 27일 16시 28분 41초
접수번호
1651
발표코드
ELEC.P-441 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 17일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Electrochemistry
저자 및
공동저자
Anh.T.N Nguyen, Jun Ho Shim*
Department of Chemistry, Daegu University, Korea
Carbon nanoparticles (CNs), also known as carbon dots, have been recognized as sp2 conjugated and quasispherical particles with sizes below 10 nm. They generally contain suitable oxygen-containing species such as carboxyl, hydroxyl, and aldehyde groups. Herein, direct synthesis of CNs in a controllable manner was achieved using hydrogen peroxide at atmospheric pressure conditions. The synthesis is accomplished via a single step using ethylene glycol and ethanolamine (or ethylenediamine) as carbon and nitrogen precursors. On the other hand, the conductivity and surface properties of CNs are key properties affecting the electrocatalytic performance. These properties of CNs depend strongly on the fabrication methods. To obtain highly active nanostructures, we fabricated all-carbon hybrid nanocomposites, i.e. carbon nanotube (CNT) decorated by CNs (CNT-CNs), via hydrothermal synthesis. The synthesized CNs and CNT-CNs were characterized by UV-Vis absorption, photoluminescence spectroscopy (PL), infrared (IR), X-ray photoelectron spectroscopy (XPS), AFM microscopy and high-resolution TEM (HR-TEM). The CNs and CNT-CNs obtained were also investigated for their influence on the electrocatalytic benefits. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2019R1F1A1049614).

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