Intercalation Assembly and Chemical Product Engineering of Layered Intercalated Functional Materials Based on Efficient Utilization of Magnesium Resources in Salt Lakes

1 Introduction Magnesium salts are very important by-product of salt lake industry in West China.Nearly 200 million cubic meters of waste brine are released to the environment

State of the art review on physiochemical and engineering characteristics of fly ash and its applications

The focus of this study is to critically review the physiochemical and engineering properties of the fly ash and its applications in various fields.The utilization of fly ash has become a widespread area,but the amount of utilization is still a serious issue.It has many beneficial qualities(such as pozzolanic property,fineness,spherical shape,lightweight,etc.),which enhance its properties and make it suitable for its utilization as a new construction material.For the bulk utilization of fly ash,it should be employed in the areas independent of any other parameters.So that,the disposal problem can be reduced significantly.The knowledge of its physiochemical characteristic helps in the judgment of appropriate fly ash for any particular type of work.Fly ash can be utilized in other areas such as asphalt concrete,geopolymer concrete,ground improvement,agricultural sector,roller compacted concrete,brick,etc.that will reduce the existing ashes,and also the disposal problem can be solved appreciably.The implementation of fly ash must be avoided below the natural ground water level and below 4°C temperature conditions.

Chemical Bond and Nonlinear Optical Effects of Crystals

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Scoping biology-inspired chemical engineering

Biology is a rich source of great ideas that can inspire us to find successful ways to solve the challenging problems in engineering practices including those in the chemical industry. Bio-inspired chemical engineering(Bio Ch E)may be recognized as a significant branch of chemical engineering. It may consist of, but not limited to, the following three aspects: 1) Chemical engineering principles and unit operations in biological systems; 2) Process engineering principles for producing existing or developing new chemical products through living ‘devices';and 3) Chemical engineering processes and equipment that are designed and constructed through mimicking(does not have to reproduce one hundred percent) the biological systems including their physical–chemical and mechanical structures to deliver uniquely beneficial performances. This may also include the bio-inspired sensors for process monitoring. In this paper, the above aspects are defined and discussed which establishes the scope of BioChE.

Research on Copyright Protection Method of Material Genome Engineering Data Based on Zero-Watermarking

In order to effectively solve the problem of copyright protection of materials genome engineering data,this paper proposes a method for copyright protection of materials genome engineering data based on zero-watermarking technology.First,the important attribute values are selected from the materials genome engineering database;then,use the method of remainder to group the selected attribute values and extract eigenvalues;then,the eigenvalues sequence is obtained by the majority election method;finally,XOR the sequence with the actual copyright information to obtain the watermarking information and store it in the third-party authentication center.When a copyright dispute requires copyright authentication for the database to be detected.First,the zero-watermarking construction algorithm is used to obtain an eigenvalues sequence;then,this sequence is XORed with the watermarking information stored in the third-party authentication center to obtain copyright information to-be-detected.Finally,the ownership is determined by calculating the similarity between copyright information to-be-detected and copyright information that has practical significance.The experimental result shows that the zero-watermarking method proposed in this paper can effectively resist various common attacks,and can well achieve the copyright protection of material genome engineering database.

Facet-engineered growth of non-layered 2D manganese chalcogenides

Non-layered two-dimensional(2D)materials have sparked much interest recently due to their atomic thickness,large surface area,thickness-and facet-dependent properties.Currently,these materials are mainly grown from wet-chemistry methods but suffer from small size,low quality,and multi-facets,which is a major challenge hindering their facet-dependent property studies and applications.Here,we report the facet-engineered growth(FEG)of non-layered 2D manganese chalcogenides(MnX,X=S,Se,Te)based on the chemical vapor deposition method.The as-grown samples exhibit large-area surfaces of single facet,high-crystallinity,and ordered domain orientation.As a proof-of-concept,we show the facet-dependent electrocatalytic property of non-layered 2D MnSe,proving they are ideal candidates for fundamental research.Furthermore,we elucidate the underlying mechanism of FEG during the vapor growth process by the interfacial energy derived nucleation models.The method developed in this work provides new opportunities for regulating and designing the structure of 2D materials.

氧化石墨烯在口腔种植修复领域的应用

背景:氧化石墨烯凭借优越的理化性质和良好的生物相容性能够促进成骨细胞的分化和抑制细菌增殖,有望提高种植体修复的成功率。目的:总结氧化石墨烯在口腔种植修复领域的研究进展。方法:应用计算机检索CNKI、万方、ScienceDirect、PubMed数据库中2000年1月至2024年6月发表的相关文献,检索词为“氧化石墨烯,口腔种植,生物相容性,抗菌机制,成骨细胞,机械性能,化学性能”“graphene oxide,dental Implantation,biocompatibility,antibacterial mechanism,osteoblasts,mechanical properties,chemical properties”。通过阅读文题和摘要进行初步筛选,排除与文章主题不相关的文献,根据纳入和排除标准,最终纳入65篇文献进行综述分析。结果与结论:氧化石墨烯通过自身抗菌及载药抗菌性能可以增加机体先天性免疫保护反应,抑制种植体周围炎的发生和发展。氧化石墨烯可以促进骨髓间充质干细胞的增殖分化,促进成骨细胞、血管内皮细胞的增殖,抑制破骨细胞的增殖,增加种植体与牙槽骨之间骨结合的速率,有利于种植体周围骨的形成和稳定。氧化石墨烯可以促进种植体与龈组织的结合,减少炎症的发生。氧化石墨烯具有低毒性,其生物安全性有待进一步研究。氧化石墨烯涂层赋予了钛种植体表面优良的理化性能,可显著降低种植体折断等并发症的发生,延长种植体使用时间。

Recent progress in design of conductive polymers to improve the thermoelectric performance

Organic semiconductors,especially polymer semiconductors,have attracted extensive attention as organic thermoelectric materials due to their capabilities for flexibility,low-cost fabrication,solution processability and low thermal conductivity.However,it is challenging to obtain high-performance organic thermoelectric materials because of the low intrinsic carrier concentration of organic semiconductors.The main method to control the carrier concentration of polymers is the chemical doping process by charge transfer between polymer and dopant.Therefore,the deep understanding of doping mechanisms from the point view of chemical structure has been highly desired to overcome the bottlenecks in polymeric thermoelectrics.In this contribution,we will briefly review the recently emerging progress for discovering the structure–property relationship of organic thermoelectric materials with high performance.Highlights include some achievements about doping strategies to effectively modulate the carrier concentration,the design rules of building blocks and side chains to enhance charge transport and improve the doping efficiency.Finally,we will give our viewpoints on the challenges and opportunities in the field of polymer thermoelectric materials.

Preparation of rare-earth-modified medical stone powders and their application as conductive fillers

Traditional metal conductive fillers are expensive and prone to oxidation. Thus, the development of new conductive powders as fillers is urgently needed. A novel gaseous penetration technology was adopted to prepare La-doped medical stone powders(La-MSPs), which are inexpensive mesoporous materials, as a new kind of conductive filler material. The prepared La-MSPs attained a resistivity of 450 ?·m and were used as a filler to prepare conductive coatings with epoxy resin as the resin matrix. The influence of the La-MSPs dosage on the resistance and hardness of the coatings was also determined. The resistance and the hardness both decreased with increasing filler dosage. Finally, the optimum recipe of the conductive coatings with the most suitable fillers dosage(55 wt%) was obtained. The hardness and resistance of the coatings with 55 wt% La-MSPs were HV 4 and 5.5 × 10~7 ?, respectively.

基于新工科立体改造协同作用的能源化学工程专业“双碳”工程人才培养模式探究

在“双碳”目标背景下,中国的能源战略正面临着重大转型,高校能源化工类专业的立体改造迫在眉睫。中国矿业大学能源化学工程专业聚焦新能源领域,以可再生能源化工、化学储能工程、二氧化碳转化利用为发展方向,以工程教育认证为导向,结合国家“双碳”战略对人才的需求,构建符合认证标准的“双碳”特色课程体系、实践平台和科研创新队伍,实施基于新工科立体改造协同作用的“双碳”工程人才培养模式。这些工作对推进高校的新工科建设、支撑国家“双碳”战略的实施具有重要的作用。

“现代材料分析技术”专业学位研究生课程教学案例库建设与实践

基于案例库的教学方法创新与实践是提升材料与化工专业学位研究生课程教学效果的一项重要改革举措。通过分析“现代材料分析技术”课程案例库建设的必要性及研究现状,优化设置了案例库建设内容,丰富了教学内容及方法,对于提升课程教学效果,增强研究生分析问题、解决问题的能力,培养材料科学工程应用型人才具有重要意义。

基于工程教育专业认证的化工专业课程教学改革与实践——以滁州学院为例

深化专业课程教育教学改革,培养大学生的创新精神、职业素养和工程实践能力,是地方本科院校普遍面临的难点问题。以滁州学院为例,介绍了该校化学工程与工艺专业教师团队将工程教育专业认证和学习产出教育(outcomes based education,OBE)理念融入专业课程改革,并从教育教学改革理念与思路、课程思政育人模式、课程内容体系设计、教学方法改革及教学考评方式5个方面采取的具体举措。结果表明:上述措施有利于知识传授和价值塑造互融互通,提升地方院校化工专业人才的工程实践能力。

地方高校一流专业课程思政建设路径研究

地方高校一流专业课程思政建设事关高校人才培养质量,责任重大,意义深远。全面落实立德树人根本任务,全面开展专业课教师的课程思政能力提升,是全面推进课程思政质量建设的重要举措,思政课教师和专业课教师应做到思政课程和课程思政同向同行,共同推动课程思政落地落实、见功见效。该研究建立“四协同四融入四库”课程思政整体推进机制,旨在系统梳理课程思政过程中遇到的共性问题和个性问题及成因,总结成功经验,构建地方高校化工类专业课程思政建设路径,并提供一种可分享、可复制的课程思政育人模式。

新工科背景下高职院校基于模糊层次分析法的化工类学生综合素质评价研究

新工科背景下,高职院校的人才培养模式更加强调实践能力和创新能力,以满足产业升级和国家对人才的能力需求。化工类学生综合素质评价模型是基于新工科背景而提出的。针对化工专业,研究企业和国家对工科人才的能力需求,分析新工科背景下复合型人才培养体系要素,明确化工类大学生综合素质的具体内涵以及核心能力要素,构建化工类工科大学生综合素质评价模型,形成综合素质评价指标体系。

材料与化工专业研究生专业英语课程教学改革与实践

本文从材料与化学专业研究生专业英语课程的现状出发,根据不同研究领域和方向,梳理和概括专业英语教学内容;采用模块化-进阶式教学策略,探究如何构建“对分课堂+翻转课堂”多维互动的教学模式,以帮助学生形成专业英语知识脉络,调动学生学习专业英语的主动性和积极性,提高其学习效率。“对分课堂+翻转课堂”多维互动的教学模式丰富了学习形式,增强了学习过程的实践性和互动性,实现了师生交互时空最大化延展。课前、课后充分运用慕课的优势资源,以巩固学习效果;并通过“模拟学术研讨会”“思政主题报告会”“英语你划我猜”和“科研海报”等小组活动提高学生学习自主性。本论文的研究成果将为英语专业课程的教学改革提供重要的理论和实践基础。

高职化工类专业“虚实交替、四岗递进”实践教学体系的研究

石油和化学工业在国家能源发展战略下,进入产业升级改造的高质量发展阶段,对高职化工类专业人才规格的要求发生转变。应对此新变化,聚焦“新工科”专业内涵,结合化工产业生产过程的特点,调查研究和比对、“联网”改革实践教学内容、“联动”模式建立实习基地、科学把握五大要素,构建了相对较为独立的高职化工类专业“虚实交替、四岗递进”实践教学体系,并联合同类职业院校推广应用和实践研究。经过两年实践,成效显著,增强了人才就业竞争力、激发了创新创业思维,同时可进一步提升实践教学条件建设水平,促使教师队伍工业化建设,为高职化工类专业人才培养、提高人才培养质量提供借鉴。

化学工程与技术专业高水平创新应用型研究生人才培养模式的探索与实践

针对化学工程与技术专业研究生培养过程中,出现了培养模式单一、优质教学资源匮乏、实验操作技能差、应用思维能力弱化、科研创新能力不足等缺点,南昌航空大学环境功能材料教学团队以研究生创新能力培养为一条主线,以工程应用思维培养、功能材料实验技术方法培养和双导师制联合培养研究生为三大模式,以纳米材料、光催化分解水制氢、催化剂的设计合成及应用、催化剂可控合成及污染控制等四大创新研究方向为基石构建了独具特色的化学工程与技术专业研究生创新能力培养模式。实践发现,在此培养模式下能提升学科影响力与研究生培养质量,更利于创新型化学工程与技术专业研究生人才的培养。

积极心理学视域下高校化工专业学生创新创业教育的积极模式构建

积极心理学对大学生的综合素养的提高以及创新创业的认知具有重要的意义。从积极心理学的角度出发,构建高校化工专业学生创新创业教育新体系,更好地培养大学生良好的择业观和就业观,对高校开展大学生创新创业教育具有深远意义。分析了积极心理学视角下推进化工专业学生创新创业教育的必要性以及存在的主要问题,探讨了积极心理学对高校化工专业学生创新创业教育的启示,最后积极心理学视域化工专业学生创新创业教育的积极模式。

秦岭矿产资源化产业学院建设背景下地方高校化材类专业实践教学改革研究

以现代产业学院建设为契机,打造资源循环、应用化学、金属材料等化材类专业群,结合商洛学院实际和专业特点对实践教学环节进行改革。构建了“一体三驱”的实践教学体系,在此基础上打造校企紧密结合的实践教学课程体系、搭建校企多方互惠互利的实践育人平台、构建产业深度融合的实践教学评价体系,服务秦岭矿产资源化产业和地方经济建设。

材料化学辅修英语专业新工科型创新实验的探索

针对目前地方高校教育存在大学生实践能力和创新创业能力较弱等问题,以材料化学辅修英语专业为例,进行地方高校材料类专业大学生新工科型创新实验的构建与实施。以可生物降解的高分子材料——聚乳酸为对象,以材料的“原料制备—高分子合成—结构表征—理化性能测试—3D打印与加工工程—机械性能测试—产品设计—老化降解”等全链条环节为主线,建立以学生为中心的创新实践教学体系,全面贯彻党的教育方针,实施素质教育,以培养符合未来新兴产业与新经济需要的、多样化、实践能力与创新能力强、具备国际竞争力的高素质复合型现代化新工科人才,为我国产业发展和国际竞争提供智力及人才支持。