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<p>Developing green and efficient methods to acquire lignocellulose-based chemicals with high added value is beneficial for facilitating green chemistry and sustainable development. The goal of this study is to demonstrate that bio-based cresol, a noteworthy high-value chemical, is able to be directionally prepared from lignocellulosic biomass. This new controllable transformation was materialized by uniting catalytic pyrolysis of lignocellulose to toluene intermediate and catalytic hydroxylation of toluene intermediate to bio-based cresol. This work also developed a novel highly active magnetic catalyst [NiFe<sub>2</sub>O<sub>4</sub>@Biochar(HTR)], which was synthesized via hydrothermal-reduction (HTR) method using ethylene glycol reductant. The NiFe<sub>2</sub>O<sub>4</sub>@Biochar(HTR) catalyst exhibited high cresol selectivity (80.2%) and high cresol yield (50.7%) in the synthesis process of cresol. It was found that introducing biochar support into Ni-Fe composite metal oxide catalyst enhanced hydroxyl radical formation and bio-based cresol synthesis. Based on catalyst characterizations and hydroxyl radical analysis, presumable reaction mechanism for bio-based cresol synthesis was proposed.</p>

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Directed Synthesis of Bio-based Cresol Using Magnetic NiFe2O4@Biochar Catalyst

  • 期刊论文

  • 发表日期：

    2026年1月29日

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  • Nan Huang,
  • Yuehui Luo,
  • Can Zhu,
  • Wanyun Tang,
  • Shiju Tao,
  • Huan Yang,
  • Xin Liu,
  • Quanxin Li

摘要

Developing green and efficient methods to acquire lignocellulose-based chemicals with high added value is beneficial for facilitating green chemistry and sustainable development. The goal of this study is to demonstrate that bio-based cresol, a noteworthy high-value chemical, is able to be directionally prepared from lignocellulosic biomass. This new controllable transformation was materialized by uniting catalytic pyrolysis of lignocellulose to toluene intermediate and catalytic hydroxylation of toluene intermediate to bio-based cresol. This work also developed a novel highly active magnetic catalyst [NiFe2O4@Biochar(HTR)], which was synthesized via hydrothermal-reduction (HTR) method using ethylene glycol reductant. The NiFe2O4@Biochar(HTR) catalyst exhibited high cresol selectivity (80.2%) and high cresol yield (50.7%) in the synthesis process of cresol. It was found that introducing biochar support into Ni-Fe composite metal oxide catalyst enhanced hydroxyl radical formation and bio-based cresol synthesis. Based on catalyst characterizations and hydroxyl radical analysis, presumable reaction mechanism for bio-based cresol synthesis was proposed.