Crystals最新文献_第5页

Controllable Functionalization of Carbon Dots as Selective and Sensitive Fluorescent Probes for Sensing Cu(II) Ions 碳点作为Cu（II）离子敏感荧光探针的可控功能化研究

4区材料科学

Crystals Pub Date : 2025-02-21 DOI: 10.3390/cryst15030205

Xiaochun Zheng, Hao Zhang, Haoming Jiang, Lei Sun, Yuanze Sun, Qingcao Liu, Shoutian Ren, Yunpeng Zhuang, Xiao‐Feng Gong

引用次数: 1

Interactions Between Sc2O3 Ceramics and Calcium–Magnesium–Alumina–Silicate (CMAS) at Elevated Temperature 高温下Sc2O3陶瓷与钙镁铝硅酸盐（CMAS）的相互作用

4区材料科学

Crystals Pub Date : 2025-02-19 DOI: 10.3390/cryst15020198

Ziqian Mo, Ziqian Mo, Zhiyun Yu, Yifan Cheng, Yiling Miao, Tianquan Liang

引用次数: 1

Low-Cost Foamed Ceramics with Enhanced Mechanical Performance and Uniform Pore Size Structure 具有增强力学性能和均匀孔径结构的低成本泡沫陶瓷

4区材料科学

Crystals Pub Date : 2025-02-13 DOI: 10.3390/cryst15020180

Junchi Weng, Xiulin Shen, Yixian Yang, Xuejia Zhang, Mengke Fan, Ge Gao, Zeming Guo, Zhenfei Lv, Xiujuan Feng

引用次数: 2

Innovative Hygroscopic Material for Humidity Regulation: Diatomaceous Earth Composite Porous Ceramic 湿度调节的创新吸湿材料：硅藻土复合多孔陶瓷

4区材料科学

Crystals Pub Date : 2025-02-04 DOI: 10.3390/cryst15020158

Zhennan Yao, Enza Migliore, Massimiliano Galluzzi, Jingze Liu

{"title":"Innovative Hygroscopic Material for Humidity Regulation: Diatomaceous Earth Composite Porous Ceramic","authors":"Zhennan Yao, Enza Migliore, Massimiliano Galluzzi, Jingze Liu","doi":"10.3390/cryst15020158","DOIUrl":"https://doi.org/10.3390/cryst15020158","url":null,"abstract":"Urbanization in hot and humid regions such as southern China has increased the demand for comfortable indoor environments. In order to design a material for efficient passive indoor humidity regulation, this study investigates a composite material that combines the hygroscopic properties of salt and the adsorption capacity of diatomaceous earth (DE). Firstly, we prepared DE and boehmite into moisture-absorbing porous materials. Then, the initial DE-based sample was innovatively doped with SiO2 nanomaterials and loaded with LiCl to enhance the humidity regulation ability of the composite, especially in the adsorption and desorption ability of water vapour. The microstructure and phase composition of the composite samples were analysed, and we observed an increase in porosity, filling performance and capillary condensation upon the introduction of SiO2 nanoparticles. The hygroscopic salt loaded into the pores can absorb more water when exposed to the ambient humidity. This synergic effect can effectively improve the hygroscopic performance of the composite material while maintaining the stability of the physical and chemical properties. The optimized samples showed a moisture absorption rate of 28% in high-humidity environments, meeting moisture buffer value evaluation standards. The study’s findings lay the foundation for the future integration of these materials through advanced manufacturing technologies.","PeriodicalId":10855,"journal":{"name":"Crystals","volume":"15 2","pages":"158-158"},"PeriodicalIF":0.0,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Mechanical and Thermal Properties of Waste Electric Porcelain-Based Solar Energy-Absorbing Thermal Storage Ceramics with Interwoven Mullite Structure 复合莫来石结构废电瓷基太阳能吸收蓄热陶瓷的力学和热性能

4区材料科学

Crystals Pub Date : 2025-01-18 DOI: 10.3390/cryst15010090

Xuejia Zhang, Zhenfei Lv, Junchi Weng, Mengke Fan, Feiyu Fan, Xin Wang, Xuyi Chen, Siqi Shi, Xiulin Shen

{"title":"Enhanced Mechanical and Thermal Properties of Waste Electric Porcelain-Based Solar Energy-Absorbing Thermal Storage Ceramics with Interwoven Mullite Structure","authors":"Xuejia Zhang, Zhenfei Lv, Junchi Weng, Mengke Fan, Feiyu Fan, Xin Wang, Xuyi Chen, Siqi Shi, Xiulin Shen","doi":"10.3390/cryst15010090","DOIUrl":"https://doi.org/10.3390/cryst15010090","url":null,"abstract":"This study addresses the environmental and resource challenges posed by the growing volume of waste electric porcelain in the power industry by developing solar absorption and thermal storage integrated ceramics (SATS ceramics) from waste electric porcelain. These SATS ceramics, which feature an exceptional mullite structure, were crafted through the optimization of the sintering process. Notably, when sintered at 1400 °C with an 11 wt.% magnetite content, the resulting material boasts an optimal short-clustered, ordered, and interwoven columnar mullite structure. This structure endows the material with a remarkable flexural strength of 96.05 MPa and a specific heat capacity of up to 0.6415 J/(g* °C) at 300 °C, significantly enhancing its thermal energy storage efficiency. This research offers innovative insights into the high-value utilization of waste electric porcelain and the development of solar thermal storage materials, underscoring its significant environmental and economic advantages.","PeriodicalId":10855,"journal":{"name":"Crystals","volume":"15 1","pages":"90-90"},"PeriodicalIF":0.0,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2073-4352/15/1/90/pdf?version=1737365432","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147913707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Combining Cocatalyst and Oxygen Vacancy to Synergistically Improve Fe2O3 Photoelectrochemical Water Oxidation Performance 助催化剂与氧空位复合协同提高Fe2O3光化学水氧化性能

4区材料科学

Crystals Pub Date : 2025-01-16 DOI: 10.3390/cryst15010085

Chen Liu, Jiajuan Li, Wenyao Zhang, Changqing Zhu

{"title":"Combining Cocatalyst and Oxygen Vacancy to Synergistically Improve Fe2O3 Photoelectrochemical Water Oxidation Performance","authors":"Chen Liu, Jiajuan Li, Wenyao Zhang, Changqing Zhu","doi":"10.3390/cryst15010085","DOIUrl":"https://doi.org/10.3390/cryst15010085","url":null,"abstract":"Considering the poor conductivity of Fe2O3 and the weak oxygen evolution reaction associated with it, surface hole accumulation leads to electron hole pair recombination, which inhibits the photoelectrochemical (PEC) performance of the Fe2O3 photoanode. Therefore, the key to improving the PEC water oxidation performance of the Fe2O3 photoanode is to take measures to improve the conductivity of Fe2O3 and accelerate the reaction kinetics of surface oxidation. In this work, the PEC performances of Fe2O3 photoanodes are synergistically improved by combining loaded an FeOOH cocatalyst and oxygen vacancy doping. Firstly, amorphous FeOOH layers are successfully prepared on Fe2O3 nanostructures through simple photoassisted electrodepositon. Then oxygen vacancies are introduced into FeOOH-Fe2O3 through plasma vacuum treatment, which reduces the content of Fe-O (OL) and Fe-OH (-OH), jointly promoting the generation of oxygen vacancies. Oxygen vacancy can increase the concentration of most carriers in Fe2O3 and form photo-induced charge traps, promoting the separation of electron holes and enhancing the conductivity of Fe2O3. The other parts of -OH act as oxygen evolution catalysts to reduce the reaction obstacle of water oxidation and promote the transfer of holes to the electrode/electrolyte interface. The performance of FeOOH-Fe2O3 after plasma vacuum treatment has been greatly improved, and the photocurrent density is about 1.9 times higher than that of the Fe2O3 photoanode. The improvement in the water oxidation performance of PEC is considered to be the synergistic effect of the cocatalyst and oxygen vacancy. All outstanding PEC response characteristics show that the modification of the cocatalyst and oxygen vacancy doping represent a favorable strategy for synergistically improving Fe2O3 photoanode performance.","PeriodicalId":10855,"journal":{"name":"Crystals","volume":"15 1","pages":"85-85"},"PeriodicalIF":0.0,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2073-4352/15/1/85/pdf?version=1737018766","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147911429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Development and Assessment of a Water-Based Drilling Fluid Tackifier with Salt and High-Temperature Resistance 耐盐耐高温水基钻井液增粘剂的研制与评价

4区材料科学

Crystals Pub Date : 2025-01-16 DOI: 10.3390/cryst15010082

Yue Gao, Xiaobo Wang, Yun Cheng, Qi Xuan, Hao Yan

{"title":"Development and Assessment of a Water-Based Drilling Fluid Tackifier with Salt and High-Temperature Resistance","authors":"Yue Gao, Xiaobo Wang, Yun Cheng, Qi Xuan, Hao Yan","doi":"10.3390/cryst15010082","DOIUrl":"https://doi.org/10.3390/cryst15010082","url":null,"abstract":"A high-temperature-resistant copolymer thickener (DT) was synthesized through free radical polymerization, utilizing monomers such as N-vinylformamide (NVF), divinylbenzene (DVB), and acrylamide (AM) as the primary raw materials. The polymer system’s structure was characterized using FTIR and 1H NMR, while its thermal properties were analyzed through thermogravimetric analysis. The viscosity changes of the polymers were evaluated before and after high-temperature aging at various temperatures. The results indicated that the viscosity retention rate of the thickener DT in the base slurry at 240 °C and 15% NaCl was 87.1%. Additionally, it exhibited varying anti-aging cycles between 200 °C and 240 °C. In a slurry with 25% NaCl, the viscosity retention rate reached 130% at 200 °C. High-temperature and high-pressure rheological tests demonstrated that drilling fluids containing DT exhibit consistent rheological behavior within the temperature range of 150 °C to 180 °C, which aids in stabilizing the viscosity and strength of drilling fluids at elevated temperatures.","PeriodicalId":10855,"journal":{"name":"Crystals","volume":"15 1","pages":"82-82"},"PeriodicalIF":0.0,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2073-4352/15/1/82/pdf?version=1737001286","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147883939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Dissolution and Pharmacokinetic Studies of Paracetamol-4,4′-Bipyridine Cocrystals Obtained Using Four Methods 四种方法制备对乙酰氨基酚-4,4′-联吡啶共晶的溶出度及药代动力学研究

4区材料科学

Crystals Pub Date : 2025-01-12 DOI: 10.3390/cryst15010070

Xiaoming Zhang, Yejia Huang, J. L. Li, Yiying Chen, Jialing Lian

{"title":"Dissolution and Pharmacokinetic Studies of Paracetamol-4,4′-Bipyridine Cocrystals Obtained Using Four Methods","authors":"Xiaoming Zhang, Yejia Huang, J. L. Li, Yiying Chen, Jialing Lian","doi":"10.3390/cryst15010070","DOIUrl":"https://doi.org/10.3390/cryst15010070","url":null,"abstract":"Paracetamol-4,4′-bipyridine cocrystals were synthesized using a solution method, reflux method, grinding method, and ultrasonic method. The structures and properties were characterized through the utilization of single-crystal X-ray diffraction (SXRD), powder X-ray diffraction (PXRD), polarized light microscopy (PLM), thermogravimetric analysis (TGA), elemental analysis (EA), and infrared spectroscopy (IR). The results show that the four methods synthesized different cocrystal morphologies, but the same structure and properties coupled with a notably high purity level. All featured strong hydrogen bonds formed between the paracetamol,4,4′-bipyridine and water molecules. An additional notable feature is the presence of π...π stacking interactions between the pyridine rings of adjacent 4,4′-bipyridine molecules. The solubility of paracetamol (active pharmaceutical ingredient, API) and the cocrystal was measured and discussed. In the dissolution experiment, the cocrystal showed a much faster dissolution rate than the API in simulated gastric fluid media (pH = 1.2). Furthermore, the pharmacokinetic (PK) behavior of the cocrystal and the API was investigated to evaluate the effectiveness of this strategy for enhancing the oral absorption of paracetamol. The in vitro and in vivo studies revealed that the paracetamol-4,4′-bipyridine cocrystal possessed an excellent dissolution behavior and an improved pharmacokinetic profile.","PeriodicalId":10855,"journal":{"name":"Crystals","volume":"15 1","pages":"70-70"},"PeriodicalIF":0.0,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2073-4352/15/1/70/pdf?version=1736765036","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147907630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of Various Foaming Agents on Ceramic Foam from Solid Waste 不同发泡剂对固体废物陶瓷泡沫的影响

4区材料科学

Crystals Pub Date : 2024-12-30 DOI: 10.3390/cryst15010032

Chenglin Zhao, Chunmin Wang, Zichen Xia, Congcong Jiang, Yiran Dong, Zihao Lan

{"title":"Effect of Various Foaming Agents on Ceramic Foam from Solid Waste","authors":"Chenglin Zhao, Chunmin Wang, Zichen Xia, Congcong Jiang, Yiran Dong, Zihao Lan","doi":"10.3390/cryst15010032","DOIUrl":"https://doi.org/10.3390/cryst15010032","url":null,"abstract":"Due to the significant amount of solid waste generated annually in China, the rational use of these wastes has become increasingly important. The production of foam ceramics is considered an effective method for the large-scale utilization of such solid waste. In this study, granite sawing mud was selected as the raw material, with SiC and MnO2 serving as foaming agent to prepare foam ceramics. The foaming behavior of sintered samples using different foaming agent was investigated to determine the most suitable type and amount of foaming agent for obtaining foam ceramics with excellent pore structures. Additionally, the effects of the foaming agent on the pore structure and physical mechanical properties of the foam ceramics were studied in detail. The results showed that SiC and MnO2 both resulted in the pronounced expansion to different extent, and increasing the content of foaming agent enhances foam expansion. The best dosage of SiC was 1%, the optimum additive amount of MnO2 is 2–3%. For SiC, the oxidation reduction reaction occurred between SiC and O2 to generate CO2/CO. For MnO2, firstly, the reduction of MnO2 to Mn2O3 occurred, and then the Mn2O3 dissolved in the glass melt and, subsequently, Mn3+ was reduced to Mn2+, leading to gas formation and foaming. Under the same dosage of foaming agent and preparation conditions, the sample prepared with SiC as the blowing agent has higher compressive strength, lower water absorption, and a more uniform pore structure.","PeriodicalId":10855,"journal":{"name":"Crystals","volume":"15 1","pages":"32-32"},"PeriodicalIF":0.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2073-4352/15/1/32/pdf?version=1735535959","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147917266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Preparation and Electrochemical Characterization of Y-Doped Li1.3Al0.3Ti1.7(PO4)3 Solid Electrolytes for Lithium-Metal Batteries 锂金属电池用y掺杂Li1.3Al0.3Ti1.7(PO4)3固体电解质的制备及电化学表征

4区材料科学

Crystals Pub Date : 2024-12-30 DOI: 10.3390/cryst15010031

Zhongran Yao, Fen Qi, Qiang Sun, Lin Ye, Xiaowei Yang, Guojie Chao, Pei Tang, Kongjun Zhu

{"title":"Preparation and Electrochemical Characterization of Y-Doped Li1.3Al0.3Ti1.7(PO4)3 Solid Electrolytes for Lithium-Metal Batteries","authors":"Zhongran Yao, Fen Qi, Qiang Sun, Lin Ye, Xiaowei Yang, Guojie Chao, Pei Tang, Kongjun Zhu","doi":"10.3390/cryst15010031","DOIUrl":"https://doi.org/10.3390/cryst15010031","url":null,"abstract":"Lithium-conducting NASICON materials have emerged as a promising alternative to organic liquid electrolytes for high-energy-density Li-metal batteries, owing to their superior ionic conductivity and excellent air stability. However, their practical application is hindered by poor sintering characteristics and high grain boundary resistance. In this investigation, Li1.3Al0.3−xYxTi1.7(PO4)3 (LAYTP-x, x = 0.00, 0.01, 0.03, 0.05, and 0.07) were successfully synthesized via conventional solid-state reaction to explore the impact of Y3+ on both ionic conductivity and chemical stability. The structural, morphological, and transport properties of the samples were comprehensively characterized in order to identify the optimal doping concentration. All samples exhibited a NASICON structure with a uniform distribution of Y elements within the electrolyte. Due to its highest relative density (95.8%), the LAYTP-0.03 electrolyte demonstrated the highest total conductivity of 2.03 × 10−4 S cm−1 with a relatively low activation energy of 0.33 eV, making it suitable for solid-state batteries. When paired with the NCM811 cathode, the Li/LAYTP-0.03/NCM811 cell exhibited outstanding electrochemical performance: a high capacity of 155 mAh/g was achieved at 0.2C after 50 cycles with a Coulombic efficiency of approximately 100%, indicating highly reversible lithium plating/stripping facilitated by the LAYTP-0.03 electrolyte. These results suggest that the LAYTP-0.03 ceramic electrolyte could be a promising alternative for developing safe solid-state Li-metal batteries.","PeriodicalId":10855,"journal":{"name":"Crystals","volume":"15 1","pages":"31-31"},"PeriodicalIF":0.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2073-4352/15/1/31/pdf?version=1735528384","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147886742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1