Gao Feng, Zhong Shunhe. Laser Stimulated Methane Direct Partial Oxidation to Methanol on the Surface of Non-crystal Fe0.5Al0.5PO4[J]. Chinese Journal of Chemical Physics , 2000, 13(5): 611-617. doi: 10.1088/1674-0068/13/5/611-617
Citation: Gao Feng, Zhong Shunhe. Laser Stimulated Methane Direct Partial Oxidation to Methanol on the Surface of Non-crystal Fe0.5Al0.5PO4[J]. Chinese Journal of Chemical Physics , 2000, 13(5): 611-617. doi: 10.1088/1674-0068/13/5/611-617

Laser Stimulated Methane Direct Partial Oxidation to Methanol on the Surface of Non-crystal Fe0.5Al0.5PO4

doi: 10.1088/1674-0068/13/5/611-617
  • Received Date: 2000-02-11
  • Crystal and non-crystal Fe0.5Al0.5PO4were prepared using dipping method and sol-gel method, respectively. Thesurfacestructure, latticeoxygen activity, chemisorption to methane and LSSR of the surface materials were investigated by XRD, IR, TPR and laser stimulated surface reaction tech-niques. The non-crystal Fe0.5Al0.5PO4has the structure of mixed small particles of FePO4and AlPO4, which isdifferent fromthe continued crystal Fe0.5Al0.5PO4structure. The activityof the latticeoxygen in non-crystal Fe0.5Al0.5PO4is more than that in the crystal Fe0.5Al0.5PO4. Methane can be adsorbed on the surface P=Obond with the molecular adsorption state, and the adsorption amount of methane on the non-crystal Fe0.5Al0.5PO4is greater than that on the crystal Fe0.5Al0.5PO4. While the 1083cm-1laser exciting the surface P=O bond, the reaction of methane partial oxid ation to methanol is occurred obvi-ously at the temperature higher than 100℃with the methanol selectivity higher than 80%. The efficient utilization of laser energy characterized by the methane conversion on non-crystal Fe0.5Al0.5PO4is more than thaton the crystalFe0.5Al0.5PO4, indicated that the amountof the laserenergy transferring from the excited surface bond into the solid body can be decreased by the microminiaturization of the solid micro-crystalline particles of the solid material.
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Laser Stimulated Methane Direct Partial Oxidation to Methanol on the Surface of Non-crystal Fe0.5Al0.5PO4

doi: 10.1088/1674-0068/13/5/611-617

Abstract: Crystal and non-crystal Fe0.5Al0.5PO4were prepared using dipping method and sol-gel method, respectively. Thesurfacestructure, latticeoxygen activity, chemisorption to methane and LSSR of the surface materials were investigated by XRD, IR, TPR and laser stimulated surface reaction tech-niques. The non-crystal Fe0.5Al0.5PO4has the structure of mixed small particles of FePO4and AlPO4, which isdifferent fromthe continued crystal Fe0.5Al0.5PO4structure. The activityof the latticeoxygen in non-crystal Fe0.5Al0.5PO4is more than that in the crystal Fe0.5Al0.5PO4. Methane can be adsorbed on the surface P=Obond with the molecular adsorption state, and the adsorption amount of methane on the non-crystal Fe0.5Al0.5PO4is greater than that on the crystal Fe0.5Al0.5PO4. While the 1083cm-1laser exciting the surface P=O bond, the reaction of methane partial oxid ation to methanol is occurred obvi-ously at the temperature higher than 100℃with the methanol selectivity higher than 80%. The efficient utilization of laser energy characterized by the methane conversion on non-crystal Fe0.5Al0.5PO4is more than thaton the crystalFe0.5Al0.5PO4, indicated that the amountof the laserenergy transferring from the excited surface bond into the solid body can be decreased by the microminiaturization of the solid micro-crystalline particles of the solid material.

Gao Feng, Zhong Shunhe. Laser Stimulated Methane Direct Partial Oxidation to Methanol on the Surface of Non-crystal Fe0.5Al0.5PO4[J]. Chinese Journal of Chemical Physics , 2000, 13(5): 611-617. doi: 10.1088/1674-0068/13/5/611-617
Citation: Gao Feng, Zhong Shunhe. Laser Stimulated Methane Direct Partial Oxidation to Methanol on the Surface of Non-crystal Fe0.5Al0.5PO4[J]. Chinese Journal of Chemical Physics , 2000, 13(5): 611-617. doi: 10.1088/1674-0068/13/5/611-617

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