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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received April 18, 2008
Accepted June 1, 2008

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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무전해 도금법으로 제조된 구리 함유 활성탄소섬유 촉매의 제조와 NO 제거 반응성 평가

Preparation of Electroless Copper Plated Activated Carbon Fiber Catalyst and Reactive Evaluation of NO Remova

윤희승 오종현 이형근¹ 전종기² 유승곤^†

Hee-Seung Yoon Jong Hyun Oh Hyung Keun Lee¹ Jong-Ki Jeon² Seung Kon Ryu^†

충남대학교 화학공학과, 305-764 대전광역시 유성구 궁동 220 ¹한국에너지기술연구원, 305-343 대전광역시 유성구 가정로 102 ²공주대학교 화학공학부, 314-701 충남 공주시 신관동 182

Department of Chemical Engineering, Chungnam National University, 220, Kung-dong, Yuseung, Daejeon 305-764, Korea ¹Research Center of greenhouse gas, Korea Institute of Energy Research(KIER), 305-343, Yuseung, Daejeon 305-343, Korea ²Department of Chemical Engineering, Kongju National University, 182, Shinkwan-dong, Gongju, Chungnam 314-701, Korea

Korean Chemical Engineering Research, October 2008, 46(5), 863-867(5), NONE Epub 10 November 2008

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Abstract

피치계 활성탄소섬유가 납사분해 잔사유를 개질하여 용융 방사하고, 산화, 탄화 및 스팀으로 활성화하여 제조되었다. 활성탄소섬유의 표면은 주석-팔라듐을 사용하여 단일 스텝에 의해 예민화 과정을 거쳤다. 예민화된 활성탄소섬유 표면에 무전해도금법을 사용하여 구리를 골고루 담지하였다. 도금시간을 증가시켜서 구리의 담지량을 변화시키고, BET, SEM, XRD 및 ICP를 이용하여 촉매 특성 변화에 미치는 영향을 관찰하였다. 도금시간에 따라 부가된 구리의 양은 증가하나, 기공부피와 비표면적은 감소하였다. 또한 반응 온도가 증가함에 따라 NO 제거 성능이 증가하였다. 300 oC 이상의 반응 온도에서 부가된 구리의 양이 증가하면 표면적의 감소와 구리 분산도의 감소 때문에 NO 제거 성능은 감소하는 결과를 얻었다.

Pitch based activated carbon fiber(ACF) was prepared from reformed naphtha cracking bottom oil(NCB oil) by melt spinning. The fibers obtained were stabilized, carbonized, and then steam activated. The ACF was sensitized with Pd-Sn catalytic nuclei via a single-step activation approach. This sensitized ACF was used as precursors for obtaining copper plated ACFs via electroless plating. ACFs uniformly decorated with metal particles were obtained with reduced copper plating in the reaction solution. Effects of the amount of copper on characteristics of ACF/Cu catalysts were investigated through BET surface area, X-ray diffraction, scanning emission microscopy, and ICP. The amount of copper increased with plating time, but the surface area as well as the pore volume decreased. NO conversion increased with reaction temperature. NO conversion decreased with increasing the amount of copper, which is seemed to be due to the reduction of surface area as well as the dispersion of copper.

Keywords

Activated Carbon Fibers Electroless Plating Single-Step Activation NO Removal Copper

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