CATALYTIC BEHAVIOR OF YBa2Cu3O7-x IN THE PARTIAL OXIDATION OF METHANOL TO FORMALDEHYDE

Sun YK; Lee WY

Korean Journal of Chemical Engineering, Vol.12, No.1, 36-38, January, 1995

CATALYTIC BEHAVIOR OF YBa₂Cu₃O_7-xIN THE PARTIAL OXIDATION OF METHANOL TO FORMALDEHYDE

The partial oxidation of methanol to formaldehyde was studied over YBa₂Cu₃O_7-Xcatalyst in a flow reactor. The structural change of YBa₂Cu₃O_7-Xbefore and after the reaction was measured by means of XRD and iodometric titration method. The catalytic characteristics of YBa₂Cu₃O_7-Xfor the partial oxidation of methanol to formaldehyde was due to copper ions. It was found that Cu⁺² was responsible for the higher selectivity for formaldehyde.

Keywords:Partial Oxidation of Methanol;Formaldehyde;YBa₂Cu₃O_7-x Oxide Superconductor;Iodometric Titration;Copper Valence

[References]

Hansen S, Otamiri J, Bovin JO, Anderson A, Nature, 334, 143 (1988)
Tabata K, Fukuda H, Kochiki S, Mizuno N, Misono M, Chem. Lett., 799 (1988)
Shimada H, Miyama S, Kuroda H, Chem. Lett., 1797 (1988)
Mizuno N, Yamato M, Misono M, J. Chem. Soc.-Chem. Commun., 13, 887 (1988)
Jiang AR, Peng Y, Zhon QW, Gao PY, Yuam HQ, Deng JF, Catal. Lett., 3, 235 (1989)
Halasz I, Appl. Catal., 47, L17 (1988)
Lee I, Ng KYS, Catal. Lett., 2, 403 (1989)
Sun YK, Lee WY, Catal. Lett., 17, 263 (1993)
Arakawa T, Adachi GY, Mater. Res. Bull., 24, 529 (1989)
Kim JB, Lee WY, Rhee HK, Lee HI, HWAHAK KONGHAK, 26(5), 535 (1988)
Tak YS, Lee GD, Lee WY, Lee HI, HWAHAK KONGHAK, 26(6), 641 (1988)
Kim YH, Rhee CK, Lee WY, Rhee HK, Lee HI, HWAHAK KONGHAK, 29(5), 596 (1991)
Kim JS, Choi JH, Lee WY, Korean J. Chem. Eng., 9(1), 45 (1992)
Cava RJ, Batlogg B, Chen CH, Rietman EA, Zahurak SM, Werder D, Phys. Rev., B, Condens. Matter, 36, 5719 (1987)
Chu CT, Dunn B, J. Am. Ceram. Soc., 70, C375 (1987)
Choi JS, Sun YK, Jung SJ, Lee WY, HWAHAK KONGHAK, 28(4), 444 (1990)
Harris DC, Hewston TA, J. Solid State Chem., 69, 182 (1987)
Nakamura T, Misono M, Yoneda Y, J. Catal., 83, 151 (1983)
Huang TJ, Chren CL, Appl. Catal., 40, 43 (1988)
Wachs IE, Madix RJ, J. Catal., 53, 43 (1978)
Jorgensen JD, Beno Ma, Hinks DG, Soderholm L, Volin KJ, Grace JD, Hitterman RL, Schuller IK, Segre CU, Zhang K, Kleefisch MS, Phys. Rev., B, Condens. Matter, 36, 3608 (1987)
Dharwadkar SR, Jakkal VS, Jakhami JV, Gopalakrishnan IK, Iyer RM, Solid State Commun., 64, 1429 (1987)

[Referenced By]

[1] Hansen S, Otamiri J, Bovin JO, Anderson A, Nature, 334, 143 (1988)

[2] Tabata K, Fukuda H, Kochiki S, Mizuno N, Misono M, Chem. Lett., 799 (1988)

[3] Shimada H, Miyama S, Kuroda H, Chem. Lett., 1797 (1988)

[4] Mizuno N, Yamato M, Misono M, J. Chem. Soc.-Chem. Commun., 13, 887 (1988)

[5] Jiang AR, Peng Y, Zhon QW, Gao PY, Yuam HQ, Deng JF, Catal. Lett., 3, 235 (1989)

[6] Halasz I, Appl. Catal., 47, L17 (1988)

[7] Lee I, Ng KYS, Catal. Lett., 2, 403 (1989)

[8] Sun YK, Lee WY, Catal. Lett., 17, 263 (1993)

[9] Arakawa T, Adachi GY, Mater. Res. Bull., 24, 529 (1989)

[10] Kim JB, Lee WY, Rhee HK, Lee HI, HWAHAK KONGHAK, 26(5), 535 (1988)

[11] Tak YS, Lee GD, Lee WY, Lee HI, HWAHAK KONGHAK, 26(6), 641 (1988)

[12] Kim YH, Rhee CK, Lee WY, Rhee HK, Lee HI, HWAHAK KONGHAK, 29(5), 596 (1991)

[13] Kim JS, Choi JH, Lee WY, Korean J. Chem. Eng., 9(1), 45 (1992)

[14] Cava RJ, Batlogg B, Chen CH, Rietman EA, Zahurak SM, Werder D, Phys. Rev., B, Condens. Matter, 36, 5719 (1987)

[15] Chu CT, Dunn B, J. Am. Ceram. Soc., 70, C375 (1987)

[16] Choi JS, Sun YK, Jung SJ, Lee WY, HWAHAK KONGHAK, 28(4), 444 (1990)

[17] Harris DC, Hewston TA, J. Solid State Chem., 69, 182 (1987)

[18] Nakamura T, Misono M, Yoneda Y, J. Catal., 83, 151 (1983)

[19] Huang TJ, Chren CL, Appl. Catal., 40, 43 (1988)

[20] Wachs IE, Madix RJ, J. Catal., 53, 43 (1978)

[21] Jorgensen JD, Beno Ma, Hinks DG, Soderholm L, Volin KJ, Grace JD, Hitterman RL, Schuller IK, Segre CU, Zhang K, Kleefisch MS, Phys. Rev., B, Condens. Matter, 36, 3608 (1987)

[22] Dharwadkar SR, Jakkal VS, Jakhami JV, Gopalakrishnan IK, Iyer RM, Solid State Commun., 64, 1429 (1987)