糠醛和乙酰丙酸催化加氢反应数据集

糠醛(FAL)是一种很有前途的可再生平台化合物，它可以完全氢化成工业上重要的平台化学品四氢糠醇(THFA)。在温和的反应条件下，利用PtNi催化剂对FAL进行一锅加氢，获得了高产量的THFA。PtNi合金微粒均匀分布在活性炭表面。采用多种物理化学技术(透射电子显微镜、x射线衍射、能量色散光谱和电感耦合等离子体光谱)对催化剂进行了表征。以工业废纸中的木质素磺酸钠(LigS)为原料，通过组装zr -金属制备木质素磺酸衍生催化剂。所制得的Zr-LigS催化剂在温和条件下表现出优异的催化性能，γ-戊内酯(GVL)产率为92.5%。结合详细的催化剂表征、Zr-LigS催化剂的催化性能、原位ATR-FTIR和中毒实验，发现水热处理Zr4+和LigS导致碱性位的形成，对CTH反应有显著的促进作用。用柚皮自还原原位合成生物质Ni/C催化剂。与传统的炭化、活化、浸渍和还原法制备方法相比，将整个制备过程简化为两步，更加直接。该合成方法绿色环保，制备Ni/C无需添加任何化学物质，且在n2中实现自还原过程，无需使用h2，从而避免了h2的储存、运输和安全等问题。同时，通过改变碳化温度可以控制Ni颗粒的尺寸和分散性。研究了Ni/C自还原催化剂的合成机理，其主要原因是碳化过程中产生的碳和还原性气体。对于合成GVL的催化性能，可以获得较高的收率(94.5%)，并且在5个循环中表现出良好的稳定性，没有明显的催化活性损失。

Furfural (FAL) is a promising renewable platform compound that can be fully hydrogenated into tetrahydrofurfuryl alcohol (THFA), an industrially significant platform chemical. Under mild reaction conditions, one-pot hydrogenation of FAL using PtNi catalysts afforded THFA in high yield. PtNi alloy nanoparticles are uniformly dispersed on the surface of activated carbon. The catalysts were characterized using various physicochemical techniques, including transmission electron microscopy (TEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), and inductively coupled plasma spectroscopy (ICP).

A lignosulfonate-derived catalyst was prepared via assembly of Zr species using sodium lignosulfonate (LigS) isolated from industrial waste paper as the starting material. The as-prepared Zr-LigS catalyst exhibited excellent catalytic performance under mild conditions, with a 92.5% yield of γ-valerolactone (GVL). Through comprehensive analysis of detailed catalyst characterization, catalytic performance of the Zr-LigS catalyst, in-situ ATR-FTIR measurements and poisoning experiments, it was found that hydrothermal treatment of Zr⁴+ and LigS leads to the formation of basic sites that significantly promote the CTH reaction.

A biomass-based Ni/C catalyst was synthesized in-situ via self-reduction using pomelo peels as the feedstock. Compared with traditional preparation protocols involving carbonization, activation, impregnation and reduction, the entire preparation process is simplified to only two steps, making it more straightforward. This synthetic method is environmentally friendly: no additional chemical reagents are required for the preparation of Ni/C catalysts, and the self-reduction process is carried out under N₂ atmosphere without the use of H₂, thus circumventing issues associated with H₂ storage, transportation and safety management. Meanwhile, the particle size and dispersion of Ni nanoparticles can be precisely controlled by modulating the carbonization temperature. The synthesis mechanism of the self-reduced Ni/C catalyst was elucidated, revealing that the primary contributing factor is the carbon and reducing gases generated during the carbonization process. For the catalytic synthesis of GVL, a high yield of 94.5% can be achieved, and the catalyst exhibits excellent stability over five consecutive reaction cycles without any noticeable loss of catalytic activity.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于糠醛和乙酰丙酸的催化加氢反应，涉及使用PtNi、木质素磺酸衍生及生物质Ni/C等多种催化剂，旨在高效生产四氢糠醇和γ-戊内酯等平台化学品。数据集包含了催化剂的表征、合成方法及性能评估结果，为相关催化过程的研究提供了实验数据支持。