Novel lubricant additives obtained from biodiesel soot dotted with silver nanoparticles for tribological applications

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chinese Journal of Chemical Engineering Pub Date : 2025-05-01 DOI:10.1016/j.cjche.2024.12.026

Chuan Li , Jiaao Qi , Xiaodong Wang , Xiaoyong Xu , Enzhu Hu , Qiangqiang Zhang , Bo Wu , Xu Tan , Kunhong Hu , Xianguo Hu

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Abstract

In the quest to develop high-performance lubrication additives, a novel nanocomposite comprising biodiesel soot modified by silver (Ag/BDS) was synthesized. The tribological behavior of Ag/BDS nanocomposite as an additive for liquid paraffin (LP) were systematically investigated using response surface methodology. To elucidate the friction and wear mechanisms associated with the Ag/BDS nanocomposite, various analytical techniques were employed, including scanning electron microscopy with energy-dispersive spectroscopy (SEM/EDS), Raman spectroscopy, and molecular dynamics simulations. The results show that the concentration of Ag/BDS has a significant impact on the tribological properties of LP under different applied loads and sliding speeds. Notably, LP containing 0.25% Ag/BDS shows the most favorable tribological performance and in comparison, to pure LP, the average friction coefficient and average wear volume have been reduced by 42.7% and 21.2%, respectively. The mechanisms underlying the reduction in friction and anti-wear mechanism of Ag/BDS have been attributed to the excellent synergies of Ag and BDS. Specifically, the Ag particles facilitate the incorporation of BDS particles in the formation of uniform boundary lubrication films.

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从生物柴油烟尘中获得的新型润滑油添加剂点缀着纳米银用于摩擦学应用

为了开发高性能润滑添加剂，合成了一种由银修饰的生物柴油煤烟（Ag/BDS）组成的新型纳米复合材料。采用响应面法系统研究了Ag/BDS纳米复合材料作为液体石蜡添加剂的摩擦学行为。为了阐明与Ag/BDS纳米复合材料相关的摩擦和磨损机制，采用了多种分析技术，包括扫描电子显微镜与能量色散光谱（SEM/EDS）、拉曼光谱和分子动力学模拟。结果表明，Ag/BDS浓度对LP在不同外加载荷和滑动速度下的摩擦学性能有显著影响。值得注意的是，含有0.25% Ag/BDS的LP摩擦学性能最好，与纯LP相比，平均摩擦系数和平均磨损体积分别降低了42.7%和21.2%。Ag/BDS减少摩擦和抗磨的机制归因于Ag和BDS的良好协同作用。具体来说，Ag颗粒有利于BDS颗粒的掺入，形成均匀的边界润滑膜。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chinese Journal of Chemical Engineering 工程技术-工程：化工

CiteScore

6.60

自引率

5.30%

发文量

4309

审稿时长

31 days

期刊介绍： The Chinese Journal of Chemical Engineering (Monthly, started in 1982) is the official journal of the Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co. Ltd. The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering. It publishes original research papers that cover the major advancements and achievements in chemical engineering in China as well as some articles from overseas contributors. The topics of journal include chemical engineering, chemical technology, biochemical engineering, energy and environmental engineering and other relevant fields. Papers are published on the basis of their relevance to theoretical research, practical application or potential uses in the industry as Research Papers, Communications, Reviews and Perspectives. Prominent domestic and overseas chemical experts and scholars have been invited to form an International Advisory Board and the Editorial Committee. It enjoys recognition among Chinese academia and industry as a reliable source of information of what is going on in chemical engineering research, both domestic and abroad.