石油化工2026，Vol.55Issue(4)：521-527,7.DOI:10.3969/j.issn.1000-8144.2026.04.006
量子点削弱水分子氢键缔合作用研究
Quantum dots weaken hydrogen bond association of water molecules
摘要
Abstract
Carbon-silicon quantum dots were prepared by evaporation solvothermal method.The quantum dot solutions were prepared with distilled water and simulated formation water for Raman spectroscopy analysis.The effect of quantum dots on the hydrogen bonding of water molecules was verified by core displacement experiment and 17O NMR characterization.The experimental results show that with the increase of quantum dot content,the characteristic peaks of strong hydrogen bond,weak hydrogen bond,and free hydrogen-oxygen bond in the Raman spectrum of peak fitting present a"right shift"phenomenon,indicating that quantum dots can effectively weaken the hydrogen bond between water molecules,and the effect is stronger when the quantum dot content is higher.The ions in simulated formation water have a synergistic effect with quantum dots,which enhances the destructive effect of quantum dots on the hydrogen bond network of water molecules.The results of core displacement experiment and 17O NMR characterization show that quantum dots can effectively weaken the hydrogen bond association between water molecules and produce"small molecule water"that can enter the small pores of ultra-low-permeability reservoirs,which can further expand the swept volume on the basis of conventional water flooding.关键词
碳硅量子点/低渗透油藏/拉曼光谱/分峰拟合/氢键网络Key words
carbon-silicon quantum dot/low-permeability oil reservoir/Raman spectroscopy/peak fitting/hydrogen bond network分类
化学化工引用本文复制引用
张文轩,陆小兵,闫若勤,罗向荣,杨立安,任晓娟..量子点削弱水分子氢键缔合作用研究[J].石油化工,2026,55(4):521-527,7.基金项目
国家自然科学基金项目(52174031) （52174031）
陕西省自然科学基础研究计划项目(2024JC-YBMS-367). （2024JC-YBMS-367）
