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Study on analysis of activation process of pre?sulfurized catalysts by X-ray photoelectron spectroscopy depth profiling technology
Received date: 2021-09-26
Online published: 2022-05-31
Under the optimized etching conditions，the pre?sulfurized catalysts with different activation times by X-ray photoelectron spectroscopy（XPS） depth profiling technology was studied，and the effect of activation time on the surface activation degree of the catalysts was analyzed.The result showed that the activation process of pre?sulfurized catalysts was accompanied by surface oxidation，and the degree of surface oxidation was increased with the extension of activation time.After activation for 3 h，the surface sulfurization of the catalysts was basically sulfurized completely.With the extension of activation time，the sulfurization process gradually deepened from the surface to the inside，and the degree of surface oxidation deepened.
Dandan ZHANG . Study on analysis of activation process of pre?sulfurized catalysts by X-ray photoelectron spectroscopy depth profiling technology[J]. Inorganic Chemicals Industry, 2022 , 54(5) : 138 -143 . DOI: 10.19964/j.issn.1006-4990.2021-0583
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