Regulation of Ni/Cu Molar Ratio on Selective Hydrodeoxygenation of Guaiacol to Phenol

PAN Fei; SUN Yonggang; GAO Wenlong; Ma Yulong

doi:10.11949/0438-1157.20260581

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Regulation of Ni/Cu Molar Ratio on Selective Hydrodeoxygenation of Guaiacol to Phenol

更新时间：2026-07-23

- Regulation of Ni/Cu Molar Ratio on Selective Hydrodeoxygenation of Guaiacol to Phenol
- CIESC Journal (2026)
- 作者机构：
  
  宁夏大学化学化工学院，宁夏银川 750021
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20260581
  CLC： TQ 028.8
- Received：24 April 2026，
  
  Revised：2026-07-22，
  
  Accepted：23 July 2026，
- 稿件说明：
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PAN Fei, SUN Yonggang, GAO Wenlong, et al. Regulation of Ni/Cu Molar Ratio on Selective Hydrodeoxygenation of Guaiacol to Phenol[J/OL]. CIESC Journal, 2026.
DOI：

PAN Fei, SUN Yonggang, GAO Wenlong, et al. Regulation of Ni/Cu Molar Ratio on Selective Hydrodeoxygenation of Guaiacol to Phenol[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20260581.

摘要

开发了Ni-Cu双金属系列含铜催化剂，采用Al

-MgO、MgO-ZSM-5等载体进行负载调控。用于愈创木酚选择性加氢脱氧制备苯酚。通过调控Ni和Cu的金属含量，研究了Cu对C-O键断裂路径的影响。结果表明，Cu的引入显著抑制了苯环的深度加氢，提高了对苯酚的选择性，同时使得愈创木酚选择性加氢脱氧的反应路径从生成环己醇类产物转向生成酚类产物。Ni与Cu之间发生电子转移，Cu⁺物种占据主导，增强了对甲氧基的亲和性，Ni的加入则增强了催化剂的活性和稳定性，碱性载体（CaO、MgO）更有利于促进甲氧基脱除生成苯酚。在200 °C、1 MPa H

水相条件下，Ni

/Al

-MgO体系中，愈创木酚转化率达30.69%，苯酚选择性达59.05%，证实了Cu在抑制芳环加氢、促进甲氧基脱除中的关键作用。

Abstract

A series of Ni-Cu bimetallic copper-containing catalysts was developed

with the loading controlled using supports such as Al

-MgO and MgO-ZSM-5. These were used for the selective hydrogenation and deoxygenation of guaiacol to produce phenol. By adjusting the metal content of Ni and Cu

the influence of Cu on the C–O bond cleavage pathway was investigated. The results indicate that the introduction of Cu significantly suppressed the deep hydrogenation of the benzene ring

enhancing the selectivity towards phenol

whilst simultaneously shifting the reaction pathway of the selective hydrogenation and deoxygenation of guaiacol from the formation of cyclohexanol-type products to that of phenolic products. Electron transfer occurs between Ni and Cu

with Cu⁺ species predominating

thereby enhancing the affinity for the methoxy group; the addition of Ni

in turn

enhances the catalyst’s activity and stabil

ity

whilst basic supports (CaO

MgO) are more conducive to promoting the elimination of the methoxy group to yield phenol. Under aqueous conditions at 200 ℃ and 1 MPa H

the Ni

/Al

-MgO system achieved a guaiacol conversion of 30.69% and a phenol selectivity of 59.05%

confirming the key role of Cu in suppressing the hydrogenation of the aromatic ring and promoting the elimination of the methoxy group.

关键词

Keywords

references

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