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Preparation process optimization and nanoscale size effects of low-loading Pd/C catalysts for rosin disproportionation 期刊论文

编号：

7047F416E7A6CB593B77C78B5096B21B
作者：

Niu, Yifan#^[1,2,3]Zheng, Jinhao^[1,3];Gong, Siyu^[1,3];Zhou, Xian^[1,3];Ju, Shaohua^[1,3,4];Bi, Xiangguang^[5];Peng, Hongbo^[6];
语种：

英文
期刊：

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS ISSN：1876-1070 2026 年 182 卷 ; MAY
收录：
关键词：

Pd/C Catalyst Rosin disproportionation Process optimization Response surface methodology Size effect
摘要：

Background: Designing cost-effective noble metal catalysts for industrial applications demands precise control over nanoparticles (NPs) size and synthesis protocols. This study focuses on optimizing low-loading (1.00 wt%) Pd/C catalysts for rosin disproportionation (RD), targeting enhanced catalytic efficiency through nanoscale synthesis control. Methods: Three synthesis strategies (impregnation, hydrosol, and deposition-precipitation) combined with reductants (glycol, hydrazine hydrate, and NaBH4) were compared to regulate Pd NPs size. The NaBH4/Pd molar ratio (22.7), temperature (65 degrees C), and duration (4 h) were systematically optimized via response surface methodology (RSM). Advanced characterization (High-angle annular dark-field scanning transmission electron microscope (HR-TEM), X-ray Diffraction (XRD), specific surface area (SSA), X-ray photoelectron spectroscopy (XPS)) correlated NP size (3.42-6.88 nm) and surface valence states with catalytic performance. Significant findings: The deposition-precipitation method with NaBH4 reduction produced relatively small Pd NPs (3.42 nm) with moderate dispersion, achieving a 52.64% dehydroabietic acid (DAA) yield and 0.10% residual abietic acid (AA), meeting LY/T 1357-2008 standards. RSM optimization further increased the DAA yield to 53.54%. A distinct inverse correlation between Pd NP size (3.42-6.88 nm) and DAA productivity highlighted the critical role of nanoscale engineering: Smaller NPs increased accessible surface Pd atoms, accelerating hydrogen transfer kinetics. This work establishes a scalable framework for industrial catalyst design by integrating nanoscale control of Pd NPs with process optimization to minimize precious metal usage while maximizing performance.
推荐引用方式
GB/T 7714：

Niu Yifan,Zheng Jinhao,Gong Siyu, et al. Preparation process optimization and nanoscale size effects of low-loading Pd/C catalysts for rosin disproportionation [J].JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS,2026,182.
APA：

Niu Yifan,Zheng Jinhao,Gong Siyu,Zhou Xian,&Peng Hongbo.(2026).Preparation process optimization and nanoscale size effects of low-loading Pd/C catalysts for rosin disproportionation .JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS,182.
MLA：

Niu Yifan, et al. "Preparation process optimization and nanoscale size effects of low-loading Pd/C catalysts for rosin disproportionation" .JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS 182(2026).
入库时间：

1/22/2026 1:16:20 PM
更新时间：

1/22/2026 1:16:20 PM

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