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不同絡(luò)合劑改性活性炭的松香歧化用Pd/C催化劑性能
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西安建筑科技大學(xué)冶金工程學(xué)院,西安凱立新材料股份有限公司,西安凱立新材料股份有限公司,西安凱立新材料股份有限公司

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國家科技型中小企業(yè)創(chuàng)新資助(項目號11C26216113807)


Modification of activated carbon using different complexants and its effect on Pd/C catalyst for disproportionation of rosin
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School of Metallurgical Engineering,Xi’an University of Architecture and Technology,Xi’an KaiLi Catalyst & New materials Co,Ltd,Xi’an,Xi’an KaiLi Catalyst & New materials Co,Ltd,Xi’an,Xi’an KaiLi Catalyst & New materials Co,Ltd,Xi’an

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Innovation Fund for Small and Medium Technology Based Firms (11C26216113807)

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    摘要:

    采用3種不同絡(luò)合劑（馬來酸、檸檬酸鈉、水楊酸鈉）對活性炭進行改性，并以未經(jīng)改性的活性炭為對比，研究了絡(luò)合劑改性活性炭對Pd/C催化劑的松香歧化性能的影響。傅里葉變換紅外（FTIR）、X射線衍射（XRD）、X射線光電子能譜（XPS）及透射電鏡（TEM）結(jié)果表明，經(jīng)過馬來酸、檸檬酸鈉和水楊酸鈉修飾改性的活性炭表面存在與Pd具有較強絡(luò)合能力的配離子，這些配離子成為Pd前驅(qū)體的吸附錨定位，有利于形成粒徑較小的Pd顆粒，提高了Pd的利用率。以改性后的活性炭為載體，制備得到的Pd/C催化劑活性均明顯高于未經(jīng)處理的活性炭的。

    Abstract:

    Three complexants, maleic acid, sodium citrate and sodium salicylate, were used to modify the activated carbon, using the activated carbon without modification for comparison. And the effects of the complexants on the performance of Pd/C catalysts used for the disproportionation of rosin were analyzed by FTIR，XRD, XPS, and TEM. The results show that the chelating agents deposited on activated carbon have a strong bonding ability with Pd cation, which is beneficial to form a smaller Pd particle, enhancing the utilization ratio of Pd. So the activity of Pd/C catalyst prepared with the modified activated carbon was significantly higher than that of untreated activated carbon.

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曾永康,王昭文,曾利輝,李岳鋒.不同絡(luò)合劑改性活性炭的松香歧化用Pd/C催化劑性能[J].稀有金屬材料與工程,2018,47(2):692~696.[Yongkang Zeng, Zhaowen Wang, Lihui Zeng, Yuefeng Li. Modification of activated carbon using different complexants and its effect on Pd/C catalyst for disproportionation of rosin[J]. Rare Metal Materials and Engineering,2018,47(2):692~696.]
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  • 收稿日期:2017-10-16
  • 最后修改日期:2017-11-07
  • 錄用日期:2017-11-09
  • 在線發(fā)布日期: 2018-03-15
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