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Effects of Pulsed Electromagnetic Field on the Morphology and Powder Size during Nickel Oxalate Salt Produced by Wet Chemical Method |
Shujing PENG, Lidan TANG, Bing WANG, Jianzhong WANG(), Jing LIN |
School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, China |
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Cite this article:
Shujing PENG, Lidan TANG, Bing WANG, Jianzhong WANG, Jing LIN. Effects of Pulsed Electromagnetic Field on the Morphology and Powder Size during Nickel Oxalate Salt Produced by Wet Chemical Method. Chinese Journal of Materials Research, 2017, 31(12): 947-954.
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Abstract Fibrous particles of nickel oxalate salt were prepared by wet chemical method under the action of pulsed electromagnetic field (PEMF) using NiCl2 solution as original liquid and (NH4)2C2O4 solution as precipitant reagents, and which then were characterized by means of X-ray diffractometer (XRD), Fourier transform infrared spectrum (FT-IR), scanning electron microscopy (SEM) and laser granularity analyzer. The effect of PEMF parameters on the morphology and powder size of nickel oxalate salt was examined and the relevant mechanism model of interaction between PEMF and reaction system was preliminarily disccussed. Results show that in comparison to the conventional precipitation method, the feeding speed for the present process can be enhanced from 2 mL/min to 5 mL/min, and the aspect ratio of fibrous particles of nickel oxalate salt increased from 7:1 to 25:1 for the produced fibrous particles under PEMF with voltage 600 V, frequency 4 Hz and treatment time 3 min. Besides, not obvious agglomeration could be seen for the products. Finally, the desired fibrous particles of nickel oxalate salt could be prepared by a process in solutions with ammonia to nickel within a range of 0.5 to 2.5 and with appropriate PEMF parameters.
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Received: 02 March 2017
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Fund: Supported by Natural Science Foundation of Liaoning Province (No. 201202096), Program for Liaoning Innovative Research Team in University (No. LT2013014), Foundation Department of Education of Liaoning Province (No. L2015236) |
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