균일용액침전법을 이용한 침전제의 농도와 합성 시간에 따른 Mn이 대체된 바륨 헥사알루미네이트의 합성의 영향

박지윤; 정유식; 이영우; Ji Yun Park; You Shick Jung; Young Woo Rhee

Korean Chemical Engineering Research, Vol.56, No.3, 349-355, June, 2018

DOI10.9713/kcer.2018.56.3.349 Export Citation

균일용액침전법을 이용한 침전제의 농도와 합성 시간에 따른 Mn이 대체된 바륨 헥사알루미네이트의 합성의 영향

Effects of Concentration of Precipitants and Aging Time on Synthesis of Mn-Substituted Barium Hexaaluminates by Homogeneous Precipitation

박지윤, 정유식¹, 이영우^†

충남대학교 에너지과학기술대학원, 34134 대전광역시 유성구 대학로 99
¹㈜지엔티엔에스, 25440 강원도 강릉시 과학단지로 106-31

Ji Yun Park, You Shick Jung¹, and Young Woo Rhee^†

Graduate School of Energy Science and Technology, Chungnam National University, 99, Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
¹GN TNS Co., Ltd., 106-31, Gwahakdanji-ro, Gangneung-si, Gangwon-do 25440, Republic of Korea

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초록

BaMnAl11O19는 요소를 이용한 균일용액침전법으로 제조되었으며, X선 회절분석과 장방출 주사현미경으로 분석되 었다. 침전제의 농도가 증가하면서 Al 종은 Al(OH)3에서 AlOOH로 변화되었으며, 소성과정에서 BaMnAl11O19 상으로 쉽게 변화하였다. 합성시간이 증가하면서 BaMnAl11O19 상의 비율은 크게 증가하지 않는 반면 BaAl2O4 상의 비율은 급격하게 증가하였다. 금속염 전구체의 반응속도는 Al, Ba, Mn 순으로 빨라, 침전제의 농도와 합성시간에 따라 BaMnAl11O19 상의 비율이 달라진다. BaAl2O4와 BaMnAl11O19는 촉매 연소 성능을 향상시키고, BaMnAl11O19 만이 CO 배출을 억제시키는 것을 확인하였다.

BaMnAl11O19 was prepared by urea-induced homogeneous precipitation and characterized by X-ray diffraction and scanning electron microscopy. At increased precipitant concentrations, AlOOH replaced Al(OH)3 as an Al precursor. BaMnAl11O19 exhibited enhanced catalytic combustion performance and inhibited CO generation. Catalytic performance was also enhanced by the presence of BaAl2O4 and BaMnAl11O19. Compared to BaAl2O4, BaMnAl11O19 exhibited superior catalytic combustion activity.

Keywords:Catalytic combustion;Combustion catalyst;Homogeneous precipitation;Hexaaluminate;BaMnAl11O19

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[Referenced By]

[1] Prefferle LD, Prefferle WC, Catal. Rev.-Sci. Eng., 29(2&3), 219 (1987)

[2] Arai H, Yamada T, Eguchi K, Appl. Catal., 26, 265 (1986)

[3] McCarty JG, Wise H, Catal. Today, 8, 231 (1990)

[4] Machida M, Eughi K, Arai H, J. Catal., 103, 385 (1987)

[5] Beguin B, Garbowski E, Primet M, Appl. Catal., 75(1), 119 (1991)

[6] Machida M, Eguchi K, Arai H, J. Catal., 123(2), 477 (1990)

[7] Beguin B, Garbowski E, Primet M, J. Catal., 127(2), 595 (1991)

[8] Groppi G, Bellotto M, Cristiam C, Forzatti P, Villa PL, Appl. Catal. A: Gen., 104, 101 (1993)

[9] Maeda K, Mizukami F, Niwa S, Toba M, Watanabe M, Masuda K, J. Chem. Soc.-Faraday Trans., 88, 97 (1992)

[10] Maeda K, Mizukami F, Watanabe M, Arai N, Toba M, Shimizu K, J. Mater. Sci. Lett., 9(5), 522 (1990)

[11] Mao CF, Vannice MA, Appl. Catal. A: Gen., 111(2), 151 (1994)

[12] Mishra D, Anand S, Panda RK, Das RP, Mater. Lett., 56, 873 (2002)

[13] Casapu M, Grunwaldt JD, Maciejewski M, Wittrock M, Gobel U, Baiker A, Appl. Catal. B: Environ., 63(3-4), 232 (2006)

[14] Wang JW, Tian ZJ, Xu JG, Xu YP, Xu ZS, Lin LW, Catal. Today, 83(1-4), 213 (2003)

[15] Martino CJ, Fondeur FF, “Gibbsite/Bayerite and Uranium in Tank 41H,” WSRC-RP-2002-00530(2002).

[16] Yin FX, Ji SF, Wu PY, Zhao F, Li CY, J. Mol. Catal. A-Chem., 294(1-2), 27 (2008)

[17] Zhang J, Xiao Q, Liu Y, J. Rare Earths, 31(4), 342 (2013)

[18] Deshmukh AD, Valechha A, Valechha D, Kumar A, Peshwe DR, Dhoble SJ, J. Lumines., 129, 691 (2009)

[19] Chen D, Zhang LH, Li HZ, Liu Y, Appl. Surf. Sci., 301, 280 (2014)

[20] Matsui K, Arima M, Kanno H, Opt. Mater., 35, 1947 (2013)

[21] Li S, Wang X, Catal. Commun., 8, 410 (2007)

[22] Yang G, Li Y, Men Y, Catal. Commun., 69, 202 (2015)