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Application of ceria materials modified by oxygen vacancies:In photocatalytic process

Journal of Rare Earths 2025年第3期43卷 417-429,I0001页

作者： Peng Wang Fang Wang Quansheng Liu Yongxing Zhang Shukun Le Chengzhang Zhu Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources Chemical Engineering CollegeInner Mongolia University of TechnologyHohhot010050China Department of Chemical and Environmental Engineering Hetao CollegeBayan Nur015000China Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation Huaibei Normal UniversityHuaibei235000China School of Environmental Science and Engineering Nanjing Tech UniversityNanjing210009China Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science MOEQingdao University of Science and TechnologyQingdao266042China

Cerium-based materials are widely used in various applications such as photocatalytic environmental remediation,CO_(2)photoreduction and photocatalytic hydrogen production due to their unique optical properties and special oxygen vacancy formation *** special external electronic structure of cerium(4f^(1)5d^(1)6s^(2)),the highly electronic 4f orbital,promotes the formation of oxygen vacancies through Ce^(4+)/Ce^(3+)conversion,thereby improving the optical properties of the ***,the application of cerium-based materials in the field of photocatalysis has been of great interest to *** this paper,we briefly review the synthesis of cerium-based photocatalysts and their applications in pollutant removal,CO_(2)reduction,and hydrogen production,as well as their promising applications.

关键词： Cerium-based materials Oxygen vacancy Morphology Photocatalytic application Rare earths

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Flexible self-supporting organic cathode with interface engineering for high-performance and wide-temperature sodium-ion batteries

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Carbon Energy 2024年第11期6卷 286-297页

作者： Lei Wang Suqiao Fang Haichao Wang Qianqian Peng Yifeng Liu Hanghang Dong Hao Yan Yong Wang Shulei Chou Bing Sun Yao Xiao Shuangqiang Chen Department of Chemical Engineering School of Environmental and Chemical Engineering Shanghai UniversityShanghaiChina Institute for Carbon Neutralization Technology College of Chemistry and Materials Engineering Wenzhou UniversityWenahouzhejiang.China School of Energy and Power Engineering Nanjing University of Science and TechnologyNanjingChina School of Mathematical and Physical Sciences Centre for Clean Energy Technology Faculty of Science University of Technology SydneyNew South WalesAustralia Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Nankai UniversityTianjinChina

Flexible electrode design with robust structure and good performance is one of the priorities for flexible batteries to power emerging wearable electronics,and organic cathode materials have become contenders for flexible self-supporting ***,issues such as easy electrolyte solubility and low intrinsic conductivity contribute to high polarization and rapid capacity ***,we have designed a flexible self-supporting cathode based on perylene-3,4,9,10-tetracarboxylic dianhydride(PTCDA),interfacial engineering enhanced by polypyrrole(PPy),and carbon nanotubes(CNTs),forming the interconnected and flexible PTCDA/PPy/CNTs using polymerization reaction and vacuum filtration methods,effectively curbing those *** used as the cathode of sodium-ion batteries,PTCDA/PPy/CNTs exhibit excellent rate capability(105.7 mAh g^(−1) at 20 C),outstanding cycling stability(79.4%capacity retention at 5 C after 500 cycles),and remarkable wide temperature application capability(86.5 mAh g^(−1) at−30℃ and 115.4 mAh g^(−1) at 60℃).The sodium storage mechanism was verified to be a reversible oxidation reaction between two Na+ions and carbonyl groups by density functional theory calculations,in situ infrared Fourier transform infrared spectroscopy,and in situ Raman ***,the pouch cells based on PTCDA/PPy/CNTs exhibit good mechanical flexibility in various mechanical *** work inspires more rational designs of flexible and self-supporting organic cathodes,promoting the development of high-performance and wide-temperature adaptable wearable electronic devices.

关键词： flexible self-supporting cathode high performance in situ characterization theoretical calculations wide temperafure application

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Electrolytes additives for Zn metal anodes:regulation mechanism and current perspectives

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Rare Metals 2024年第9期43卷 4162-4197页

作者： Yu-Zhe Zhang Huai-Sheng Ao Qi Dong Shao-Jie Zhang Zhi-Guo Hou Na-Na Wang Xue-Song Xie Jian Rong Zhong-Yu Li School of Environmental Science and Engineering Changzhou UniversityChangzhou 213164China School of Petrochemical Engineering Changzhou UniversityChangzhou 213164China Hefei National Laboratory for Physical Science at Microscale School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefei 230026China Institute for Superconducting and Electronic Materials Australian Institute for Innovative MaterialsInnovation CampusUniversity of WollongongNorth WollongongNSW 2500Australia Department of Chemical and Materials Engineering University of AlbertaEdmonton AB T6G 1H9Canada

With distinct advantages such as high gravimetric and volumetric capacity(5855 mAh·cm^(-3)and 820mAh·g^(-1)),low redox potential(-0.762 V *** hydrogen electrode(SHE)),high abundance,low toxicity and intrinsic safety of Zn metal anode,Zn-ion batteries have become a potential alternative to Li-ion ***,several challenges still need to be addressed prior to the practical applications of Zn-ion batteries,such as dendrite growth during Zn plating/stripping and interfacial side reactions on the Zn *** issues can be addressed by introducing additives to regulate the components and structures of the *** this review,we systematically discussed the core issues of metallic Zn anodes and comprehensively summarized a novel perspective of the regulation mechanism of inhibiting dendrite growth or interfacial side reactions in Zn anodes by introducing additives into aqueous ***,some discussions and prospects for aqueous Zn ion batteries(AZIBs)are presented for future research.

关键词： Electrolyte additives Zn metal anode Regulation mechanism Current perspectives AZIBs

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Springtail-Inspired Hierarchically Structured Polymer Films as Omniphobic Coatings for Directional Transportation of Liquids

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ACS Applied Nano materials 2024年第12期7卷 14584-14595页

作者： Ye, Yu-Zhe Lin, Shin-Hua Hsieh, Shang-Yu Zeng, Bo-Han Hsueh, Han-Yu Lin, Chia-Feng Cheng, Ya-Lien Hsuen, Hsiang-Wen Lin, Kun-Yi Andrew Lee, Rong-Ho Yang, Hongta Department of Chemical Engineering National Chung Hsing University Taichung40227 Taiwan Department of Materials Science & Engineering National Chung Hsing University Taichung40227 Taiwan Department of Environmental Engineering National Chung Hsing University Taichung40227 Taiwan Institute of Analytical and Environmental Sciences National Tsing Hua University Hsinchu300044 Taiwan

Slender springtails (Entomobrya nivalis) and orange springtails (Neanura muscorum) are capable of repelling water and organic liquids using the hexagonally arranged nanoscale waxy protrusions and microscale wrinkles on their cuticles to protect the skin-breathing arthropods against suffocation in diversified survival environments. The omniphobic hierarchical structures can even shed and directionally transport liquids along the longitudinal direction of the wrinkles. Bioinspired by springtails, monolayer colloidal crystals are self-assembled onto anisotropic microwrinkled substrates and serve as structural templates to pattern antiwetting hierarchical structure arrays. The dependence of structure configuration on the antiwetting performances is systematically investigated in this study. Impressively, the optimized structure array exhibits anisotropic omniphobic sliding characteristics toward liquids with varied surface tensions ranging from 72.8 to 27.2 mN/m. The springtail-inspired coatings undoubtedly have great potential for developing innovative applications that require directional transportation and the collection of liquids. © 2024 American chemical Society.

关键词： Self assembly

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Electrocatalytic Reduction of CO_(2)to CO with Almost 100%Faradaic Efficiency Using Oxygen-Vacancy Enriched Two-Dimensional MgO

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CCS Chemistry 2024年第6期6卷 1477-1486页

作者： Yu Han Sunggi An Xinyu Zhan Leiduan Hao Liang Xu Song Hong Dongmin Park Yuxin Chen Yiwen Xu Jiwen Zhao Xinyi Tan Alex W.Robertson Yousung Jung Zhenyu Sun State Key Laboratory of Organic-Inorganic Composites College of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029 Department of Chemical and Biomolecular Engineering(BK21four) Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141 Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081 Department of Physics University of WarwickCoventry

The design and development of cheap,abundant,and efficient electrocatalysts for selective CO_(2)electroreduction is highly desirable yet remains an ongoing ***,we report on our discovery of the use of two-dimensional MgO rich in oxygen vacancies(VO)as an electrocatalyst for the efficient reduction of CO_(2)to yield CO in 1-butyl-3-methylimidazolium hexafluorophosphate dissolved in *** faradaic efficiency toward CO reaches as high as 99.6±0.24%with a current density of up to 40.8 mA cm−*** functional theory calculations illustrate that the introduction of VO in MgO substantially lowers the reaction-free energy for the transformation of ^(*)COO^(−) to ^(*)COOH,the potential determining step,which greatly boosts CO_(2)conversion *** work opens the way to realizing economic and efficient CO_(2)electrolysis of group II metals.

关键词： CO_(2)reduction electrocatalysis CO MgO ionic liquid oxygen-vacancy

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Small water supply system with plasma-modified poly(tetrafluoroethylene) membrane for drinking water production

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Process Safety and environmental Protection 2024年 185卷 754-760页

作者： Chang, Ying-Ju Chang, Jo-Shu Lee, Duu-Jong Huang, Chihpin Department of Chemical Engineering National Taiwan University Taipei10617 Taiwan Research Center for Smart Sustainable Circular Economy Tunghai University Taichung 407 Taiwan Department of Chemical and Materials Engineering Tunghai University Taichung 407 Taiwan Department of Mechanical Engineering City University of Hong Kong Kowloon Tong Hong Kong Department of Chemical Engineering & Materials Science Yuan Ze University Chung-Li32003 Taiwan Institute of Environmental Engineering National Yang Ming Chiao Tung University Hsinchu300 Taiwan

The small water supply systems aim at supplying safe drinking water to small communities in remote areas. This study applies an automatic small water supply system comprising 20 plasma-grafted poly(tetrafluoroethylene) (PTFE) membranes with a 1.42 m2 filtration area to generate permeate at a capacity of 3 m3/day from raw water collected from a local river. The system was tested by 34 days in phase I with bubble scraping and by 120 days in phase II without bubbling, with water quality, cross-membrane pressure drops, and dissolved organic carbons’ and foulants’ characteristics being recorded. Even with typhoon water turbidity up to 1714 nephelometric turbidity units (NTU), the system yields drinking water, meeting Taiwan's standards. The system is fully automatic with no coagulant or disinfectant doses;an operational cost of 0.21 USD/m3 is proposed, much lower than the tariffs applied in most countries. The foulant characteristics and washing efficiencies noted are discussed. © 2024 The Institution of chemical Engineers

关键词： Water supply

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Revealing the role of electrode potential micro-environments in single Mn atoms for carbon dioxide and oxygen electrolysis

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Nano Research 2024年第9期17卷 7957-7966页

作者： Pengcheng Liu anyi Liu Kaili Wang Shuai Shi Mengmeng Jin Jingxiu Liu Tao Qin Qian Liu Xijun Liu Jia He Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion School of Chemistry and Chemical EngineeringInstitute of New-Energy Materials and Low-Carbon TechnologiesSchool of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China School of Chemistry and Chemical Engineering and Environmental Engineering Weifang UniversityWeifang 261061China Department of Electrical Engineering and Automation Luoyang Institute of Science and TechnologyLuoyang 471023China Institute for Advanced Study Chengdu UniversityChengdu 610106China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured MaterialsSchool of ResourcesEnvironment and MaterialsGuangxi UniversityNanning 530004China

Elucidation the relationship between electrode potentials and heterogeneous electrocatalytic reactions has attracted widespread *** we construct the well-defined Mn single-atom(MnSA)catalyst with four N-coordination through a simple thermal pyrolysis preparation method to investigate the electrode potential micro-environments effect on carbon dioxide reduction reactions(CO_(2)RR)and oxygen reduction reactions(ORR).MnSA catalysts generate higher CO production Faradaic efficiency of exceeding 90%at-0.9 V for CO_(2)RR and higher H_(2)O_(2)yield from 0.1 to 0.6 V with excellent ORR *** functional theory(DFT)calculations based on constant potential models were performed to study the mechanism of MnSA on CO_(2)*** thermodynamic energy barrier of CO_(2)RR is lowest at-0.9 V *** hydrogen electrode(RHE).Similar DFT calculations on the H_(2)O_(2)yield of ORR showed that the H_(2)O_(2)yield at 0.2 V was *** study provides a reasonable explanation for the role of electrode potential micro-environments.

关键词： electrode potential micro-environments Mn single-atom catalyst carbon dioxide reduction reaction oxygen reduction reaction constant potential models

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Feasibility of geopolymer synthesis using soda ash in copper slag blended fly ash-based geopolymer

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materials Today: Proceedings 2023年 86卷 41-46页

作者： Erunkulu I.O. Malumbela G. Oladijo O.P. Department of Civil and Environmental Engineering Botswana International University of Science and Technology Botswana Department of Chemical Materials and Metallurgical Engineering Botswana International University of Science and Technology Botswana

This study presents the strength development of geopolymer synthesized from class F-type fly ash blended with copper slag in 0-50 % variation using soda ash as the alkaline activator. Physical and chemical characterization of precursors was carried out with particle size analysis, X-ray diffraction, scanning electron microscopy and X-ray fluorescence analysis. The geopolymer paste mixtures were prepared with an activator to binder ratio of 0.32, liquid to solid ratio of 0.3, and cast in 50 mm cubes. The paste cubes were subjected to ambient and heat curing of 80 °C for 3 days and thereafter tested for compressive strength at 3, 7, and 28 days. The results showed varied performance within the sample mix types to curing condition. Ambient curing was most effective in geopolymer pastes with 100 % fly ash composition which developed early strength of 6.79 MPa at 3 days higher than other copper slag blended variations. While geopolymer pastes with 40 % slag mix developed significant strength with heat curing. Overall, the obtained optimum strength at the synthesis parameters with soda ash was 17 MPa. © 2023 Elsevier Ltd. All rights reserved.

关键词： Aluminosilicates Copper slag Fly ash Geopolymer Soda ash activation

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Recent advances in self-healing hydrogel composites for flexible wearable electronic devices

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Nano Research Energy 2024年第3期3卷 160-189页

作者： Xihan Tan Kaibin Chu Zhijie Chen Ning Han Xueliang Zhang Hongwei Pan Wei Guo Guoxing Chen Bing-Jie Ni Zhenyu Zhou Hui Song Department of Chemistry and Chemical Engineering Lyuliang UniversityLvliang 033001China School of Materials Science and Engineering Linyi UniversityLinyi 276000China School of Civil and Environmental Engineering The University of New South WalesSydneyNSW 2052Australia Department of Materials Engineering KU LeuvenKasteelpark Arenberg 44Leuven 3001Belgium Fraunhofer Research Institution for Materials Recycling and Resource Strategies IWKS AlzenauGermany

Flexible electronic devices with mechanical properties like the soft tissues of human organs have great potential for the next generation of wearable and implantable electronic ***-healing hydrogel composites typically have high tensile strength,high electrical conductivity and damage repair properties and have wide applications in flexible electronics,such as human-computer interaction,health detection and soft *** self-healing hydrogel composites have been developed to produce new stretchable conductive materials with satisfactory mechanical and selfhealing *** paper presents the fabrication of self-healing hydrogel composites and their application in flexible electronic ***,the repair mechanism of physically cross-linked and chemically cross-linked self-healing hydrogel composites is ***,self-healing double network hydrogels,self-healing nanocomposite hydrogels and double crosslinked self-healing hydrogel composites and their applications in flexible sensors,energy harvesting devices,energy storage devices and optical devices are presented and ***,the challenges and prospects of self-healing hydrogel composites in flexible electronic devices in the future are presented.

关键词： hydrogel composites self-healing property repair mechanism network structures wearable electronic devices

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Mechanistic insights into the selective photocatalytic degradation of dyes over TiO_(2)/ZSM-11

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Frontiers of environmental science & engineering 2023年第8期17卷 127-136页

作者： Zhou Zhang Kai Huo Tingxuan Yan Xuwen Liu Maocong Hu Zhenhua Yao Xuguang Liu Tao Ye Department of Chemical Engineering Jianghan UniversityWuhan 430056China College of Materials Science and Engineering Qingdao University of Science and TechnologyQingdao 266042China Department of Civil and Environmental Engineering South Dakota School of Mines and TechnologyRapid CitySD 57701USA State Key Laboratory of Precision Blasting Jianghan UniversityWuhan 430056China

Photocatalytic degradation is a promising way to eliminate dye *** this work,a series of TiO2/ZSM-11(TZ)nanocomposites were prepared using a facile solid state dispersion *** orange(MO),methylene blue(MB),and rhodamine B(RhB)were intentionally chosen as target substrates in the photocatalytic degradation *** to pristine TiO2,negative effect was observed on MO degradation while promoted kinetics were collected on MB and RhB over TZ ***,a much higher photocatalytic rate was interestingly achieved on RhB than MB,which indicated that a new factor has to be included other than the widely accepted electrostatic interaction mechanism to fully understand the selective photodegradation *** characterizations showed that TiO2 and ZSM-11 physically mixed and maintained both the whole framework and local structure without chemical *** different trends observed in surface area and the photo-absorption ability of TZ composites with reaction performance further excluded both as the promotion ***,adsorption energies predicted by molecular dynamics simulations suggested that differences in the adsorption strength played a critical *** work provided a deep mechanistic understanding of the selective photocatalytic degradation of dyes reactions,which helps to rationally design highly efficient photocatalysts.

关键词： Selective dye degradation Photocatalysis TiO2 ZSM-11 Chemisorption

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