In this study, a CFD model coupled with heterogeneous flow structure, mass transfer equations, and chemical reaction kinetics is established to forecast the pyrolusite reduction reaction behavior. Compared with the previous studies which ignore the volume change of solids phase, the influence of volume shrinkage on reaction and flow behavior is exp...
In this study, a CFD model coupled with heterogeneous flow structure, mass transfer equations, and chemical reaction kinetics is established to forecast the pyrolusite reduction reaction behavior. Compared with the previous studies which ignore the volume change of solids phase, the influence of volume shrinkage on reaction and flow behavior is exp...
Abstract The growing concern about scarcity and large-scale applications of lithium resources has attracted efforts to realize cost-effective phosphate-based cathode materials for next-generation Na-ion batteries (NIBs). In previous work, a series of materials (such as Na4Fe3(PO4)2(P2O7), Na3VCr(PO4)3, Na4VMn(PO4)3, Na3MnTi(PO4)3, Na3MnZr(PO4)3, et...
Abstract The growing concern about scarcity and large-scale applications of lithium resources has attracted efforts to realize cost-effective phosphate-based cathode materials for next-generation Na-ion batteries (NIBs). In previous work, a series of materials (such as Na4Fe3(PO4)2(P2O7), Na3VCr(PO4)3, Na4VMn(PO4)3, Na3MnTi(PO4)3, Na3MnZr(PO4)3, et...
含有苯胺、硫醇等活性基团的药物新污染物释放到水环境中会对生态环境和人体健康造成潜在风险。通常在水环境或污/废水体系中，药物新污染物浓度仅为常规污染物（例如腐殖酸类污染物）浓度的数十分之一，甚至更低。常规的无选择性氧化会将大量能量和氧化剂消耗在降解浓度更高的常规污染物上，无法实现药物新污染物的低成本、低碳、高选择性去除。自然水体的腐殖化自净化通过氧化偶联将新污染物与腐殖酸结合实现无害化处理，这为新污染物的低成本去除提供了新思路。但目前尚未有针对药物新污染物，深入探索腐殖酸共存环境下的氧化偶联机理的研究。
本文根据不同药物与不同氧化态腐殖酸的结构特点，开展了药物新污染物与腐殖酸类共存环境下氧化偶联反应机理研究，重点考察了不同药物新污染物的亲核结构与氧化过程不同腐殖酸中间体对氧化偶联反应的作用影响...
传统锂离子电池技术难以满足新兴能量存储领域对能量密度和安全性的要 求，迫切需要开发低成本、高安全以及高能量密度的下一代固态电池技术。固 态电池作为一种革新的电池技术，具有很大的发展空间和应用前景。有别于传 统液态锂离子电池在实际使用中存在的安全隐患问题，固态电池最突出的优势 即为其高安全特性。此外，与高理论比容量的锂金属电极匹配可有效提升其能 量密度。固态电解质有三种类型，其中复合电解质结合了聚合物电解质和无机 电解质的优势，很好满足储能器件的需求。虽然，以复合电解质代替液态电解 质具有一系列优点，但随之而来的电极/电解质界面兼容性也是亟待解决的难题。 因此，开发具有良好界面接触和长循环稳定性的固态锂金属电池尤为重要。本 论文构筑了不同类型的醚类复合固态电解质，并探究了固态锂电池电极界面的 ...
Based on the existing energy-minimization multi-scale (EMMS) model for turbulent flow in pipe, an improved version is proposed, in which not only a new radial velocity distribution is introduced but also the quantification of total dissipation over the cross-section of pipe is improved for the dominant mechanism of fully turbulent flow in pipe. The...
This study presents the preparation of a nitrogen dioxide (NO2) gas sensor based on yttrium-stabilized zirconia (YSZ) using a hard-template method and evaporation self-assembly technology. The sensing electrode employed is nickel oxide, and the sensor exhibits an efficient three-phase boundary. The study systematically investigates the effects of c...
