检索结果-内蒙古大学图书馆

Organic Solvents Tuned Polymer derived-Sulfonated Microporous Carbon Structures Enable resource regeneration and recovery in Flow Capacitive deionization

SSRN

引用

SSrN 2024年

作者： Wei-Song, Hung Subrahmanya, T.M. Gua, Liang-Yan Austria, Hannah Faye M. Huang, Tsung-Han Wang, Chih-Feng Hu, Chien-Chieh Lee, Kueir-rarn Lai, Juin-Yih Advanced membrane materials research center Graduate Institute of Applied science and Technology National Taiwan University of Science and Technology Taipei10607 Taiwan Institute of Advanced Semiconductor Packaging and Testing National Sun Yat-sen University Kaohsiung804201 Taiwan R&D Center for Membrane Technology Chung Yuan University Chung-Li32023 Taiwan Department of Chemical Engineering and Materials Science Yuan Ze University Taoyuan32023 Taiwan

The demand for freshwater and energy in today's society is growing rapidly. Although current desalination technologies such as reverse osmosis and electrodialysis are widely used, their high energy consumption remains a major challenge. recently emerged desalination technology called Flow Capacitive deionization (FCdI), offers advantages such as low energy consumption, low pollution, electrode regeneration, and continuous operation. FCdI primarily utilizes activated carbon as the material for flow electrode, with less research focused on other carbon materials and modifications. Herein, three different solvents induced polyacrylonitrile (PAN) derived microporous carbon structures were tested as flow-electrodes. The carbon structures were sulfonated under different temperatures to explore their impact on desalination. Additionally, by connecting an external capacitor in different operating modes, the charging efficiency and energy recovery during the desalination process were evaluated. The PAN-C@ACE_S150 as flow-electrode exhibited lower ion transfer resistance and higher desalination efficiency. Under short-circuited closed cycle (SCC) operation mode, the average desalination rate within 30 minutes reached to 0.19 mmol/m2s, approximately 2.5 times higher than that of commercial activated carbon (0.07 mmol/m2s). In Isolated Closed-cycle (ICC) mode, a charging efficiency of 75.73% was achieved, successfully charging the capacitor from 0 V to 1.02 V and 0 V to 0.6 V with and without system power supply, respectively. These results demonstrated that the PAN-C@ACE_S150 can enhance the desalination capability of the system and enables harvesting electrical energy during the desalination, achieving the regeneration of fresh water and energy. This opens up new research directions for future advancements in desalination and energy recovery. © 2024, The Authors. All rights reserved.

关键词： desalination

来源：评论

学校读者我要写书评

暂无评论

Pyridine-extended proton sponge enabling high-performance membrane for flow batteries

引用

JOUrNAL OF membrane science 2023年第1期669卷

作者： Hu, Lei Gao, Li di, Mengting Zheng, Wenji ruan, Xuehua dai, Yan Chen, Wanting He, Gaohong Yan, Xiaoming Dalian Univ Technol Frontier Sci Ctr Smart Mat R&D Ctr Membrane Science& TechnolLab PetroChem En Sch Chem Engn.State Key Lab Fine Chem 2 Linggong Rd LN Dalian 116024 Peoples R China Dalian Univ Technol Sch Chem Engn 2 Dagong Rd LN Panjin 124221 Peoples R China

The development of high-performance and low-cost membrane is of significance towards vanadium flow battery (VFB). The membrane usually suffer from a trade-off challenge between conductivity and selectivity especially in long-term operation of flow battery. Herein, using a proton sponge drived by the proton absorption capacity of extended pyridine groups, a highly ion-selective membrane is fabricated. during acid-assisted doping behaviors, transport nanochannels with highly proton-selective conductivity are constructed based on well-defined nano-phase separation structure. The protonated nanochannels display effectively acidic absorption during hydration process for enabling fast proton conduction (a low area resistance of 0.33 omega cm2) and repelling vanadium ion (a low vanadium ion permeability of 3.04 x 10-10 cm2 s-1). Consequently, prepared membrane with proton sponge exhibits remarkable performance of high energy efficiency of 85.5%, together with excellent chemical durability over 1000 charge-discharge cycles (more than 1100 h) at 120 mA cm-2 in VFB application. These notable properties make prepared membrane as a potential alternative used in large-scale energy storage systems.

关键词： Proton sponge Pyridine groups Ion-selective conductivity membrane Vanadium flow battery

来源：评论

学校读者我要写书评

暂无评论

decoration of atomic PdxAuy (1 ≤ x + y ≤ 4) clusters on polyaniline in electrochemical sensing of 1-propanol

引用

Surface and Coatings Technology 2024年 483卷

作者： Yoshida, Shohei Okamoto, Keisuke Kurioka, Tomoyuki Chen, Chun-Yi Chakraborty, Parthojit Lin, Yi-Feng Hsu, Yung-Jung Nakamoto, Takamichi Sone, Masato Chang, Tso-Fu Mark Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta-cho Midori-ku Yokohama226-8503 Japan Department of Chemical Engineering and R&D Center for Membrane Technology Chung Yuan Christian University 200 Chung Pei Rd. Chungli Taoyuan Taiwan Department of Materials Science and Engineering National Yang Ming Chiao TungUniversity Taiwan

Atomic PdxAuy (1 ≤ x + y ≤ 4) clusters are decorated on polyaniline to be used as the catalytic electrode in electrochemical sensors. The current responses in the oxidation of 1-propanol are used to reveal the catalytic activity. Effects of the size, decoration sequence, and composition of the atomic metal clusters decorated on the PANI on the catalytic activity are evaluated. regarding the size, an odd-even size effect is observed in the atomic pure metal clusters, which the even-numbered pure metal clusters show a higher catalytic activity than the odd-numbered pure metal clusters. For the decoration sequence, the catalytic activity is high when the same metal is decorated in the first two cycles of the cyclic atomic electrodeposition process. For the composition effect, the atomic metal clusters show a high catalytic activity in the oxidation, in the region of second oxidation peak, when there are more Au in the atomic metal clusters. © 2024 Elsevier B.V.

关键词： Catalyst activity

来源：评论

学校读者我要写书评

暂无评论

Symbolic Audio Classification via Modal decision Tree Learning

arXiv

引用

arXiv 2025年

作者： Marzano, Enrico Pagliarini, Giovanni Pasini, riccardo Sciavicco, Guido Stan, Ionel Eduard R&D Deparment Gap S.r.l.u. Udine Italy Lab Department of Mathematics and Computer Science University of Ferrara Ferrara Italy Database Systems Group Faculty of Engineering Free University of Bozen-Bolzano Bolzano Italy

The range of potential applications of acoustic analysis is wide. Classification of sounds, in particular, is a typical machine learning task that received a lot of attention in recent years. The most common approaches to sound classification are subsymbolic, typically based on neural networks, and result in black-box models with high performances but very low transparency. In this work, we consider several audio tasks, namely, age and gender recognition, emotion classification, and respiratory disease diagnosis, and we approach them with a symbolic technique, that is, (modal) decision tree learning. We prove that such tasks can be solved using the same symbolic pipeline, that allows to extract simple rules with very high accuracy and low complexity. In principle, all such tasks could be associated to an autonomous conversation system, which could be useful in different contexts, such as an automatic reservation agent for an hospital or a *** Codes 68T05 © 2025, CC0.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Organic Solvents Tuned Polymer derived-Sulfonated Microporous Carbon Structures Enable resource regeneration and recovery in Flow Capacitive deionization

SSRN

引用

SSrN 2024年

作者： Wei-Song, Hung Subrahmanya, T.M. Liang-Yan, Gua Austria, Hannah Faye M. Huang, Tsung-Han Wang, Chih-Feng Hu, Chien-Chieh Lee, Kueir-rarn Lai, Juin-Yih Advanced membrane materials research center Graduate Institute of Applied science and Technology National Taiwan University of Science and Technology Taipei10607 Taiwan Institute of Advanced Semiconductor Packaging and Testing National Sun Yat-sen University Kaohsiung804201 Taiwan R&D Center for Membrane Technology Chung Yuan University Chung-Li32023 Taiwan Department of Chemical Engineering and Materials Science Yuan Ze University Taoyuan32023 Taiwan

The demand for freshwater and energy in today's society is growing rapidly. Although current desalination technologies such as rO and electrodialysis are widely used, their high energy consumption remains a major challenge. Flow Capacitive deionization (FCdI), offers advantages such as low energy consumption, low pollution, electrode regeneration, and continuous operation. Herein, three different solvents induced polyacrylonitrile derived microporous carbon structures were tested as flow-electrodes. The carbon structures were sulfonated to explore their impact on desalination. Additionally, by connecting an external capacitor in different operating modes, the charging efficiency and energy recovery during the desalination process were evaluated. The PAN-C@ACE_S150 as flow-electrode exhibited lower ion transfer resistance and higher desalination efficiency. Under SCC operation mode, the average desalination rate within 30 minutes reached to 0.19 mmol/m2s, approximately 2.5 times higher than that of commercial activated carbon (0.07 mmol/m2s). In ICC mode, a charging efficiency o75.73% was achieved, successfully charging the capacitor from 0 V to 1.02 V and 0 V to 0.6 V with and without system power supply, respectively. These results demonstrated that the PAN-C@ACE_S150 can enhance the desalination capability of the system and enables harvesting electrical energy during the desalination process, achieving the regeneration of fresh water and energy. © 2024, The Authors. All rights reserved.

关键词： desalination

来源：评论

学校读者我要写书评

暂无评论

Anti-inflammatory and anabolic biphasic scaffold facilitates osteochondral tissue regeneration in osteoarthritic joints

引用

Journal of Materials science & Technology 2023年第25期156卷 20-31页

作者： Xiangbo Meng Ling Li Cuishan Huang Keda Shi Qingqiang Zeng Chunyi Wen Sibylle Grad Mauro Alini Ling Qin Xinluan Wang Translational Medicine R&D Center Institute of Biomedical and Health EngineeringShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China AO Research Institute Davos Clavadelerstrasse 8Davos Platz 7270Switzerland Musculoskeletal Research Laboratory Department of Orthopaedics & TraumatologyThe Chinese University of Hong KongHong Kong SAR 999077China CAS-HK Joint Lab of Biomaterials Joint Laboratory of Chinese Academic of Science and Hong Kong for BiomaterialsTranslational Medicine Research and Development CenterShenzhen Institutes of Advanced Technology of Chinese Academy of Sciences and The Chinese University of Hong KongChina Department of Biomedical Engineering Faculty of EngineeringThe Hong Kong Polytechnic UniversityHong Kong SAR 999077China

Osteochondral defects (OCd) are common but difficult to heal due to the low intrinsic repair capacity of cartilage and its complex hierarchical structure. In osteoarthritis (OA), OCd become more challenging to repair as both cartilage and subchondral bone regeneration are further impaired due to the arthritic environment. Numerous biomaterials have been developed and tested in osteochondral defects while ignoring the inflammatory environment. To target this challenging underlying pathophysiology, we designed and fabricated a biphasic porous and degradable scaffold incorporating anti-inflammatory and anabolic molecules by low-temperature rapid prototyping technology, and its effects on promoting osteochondral regeneration were evaluated using our well-established OA-OCd rabbit model. The biphasic porous scaffolds consisted of poly lactic-co-glycolic acid (PLGA) with kartogenin (KGN) for cartilage repair and PLGA and β-calcium phosphate (PLGA/β-TCP) with cinnamaldehyde (CIN) for subchondral bone repair. KGN is a molecule for promoting chondrogenesis and CIN is a phytomolecule for enhancing osteogenesis and alleviating inflammation. The biphasic scaffolds PLGA/KGN-PLGA/β-TCP/CIN (PK/PTC) with bio-mimic structure provided stable mechanical properties and exhibited excellent biocompatibility to support cell adhesion, proliferation, migration, and distribution. Furthermore, KGN and CIN within biphasic scaffolds could be released in a controlled and sustained mode, and the biphasic scaffold degraded slowly in vitro . Evaluating the repair of 16-weeks post-implantation into critically sized OA-OCd rabbit models revealed that the biphasic scaffold could promote subchondral bone and cartilage regeneration, as well as reverse subchondral osteosclerosis caused by inflammation in vivo . These findings support the utilization of the PK/PTC scaffold for osteochondral regeneration and provide a promising potential strategy for clinical application for the treatment of patients with

关键词： Biphasic scaffold Osteochondral defect Osteoarthritis Kartogenin Cinnamaldehyde Anti-inflammation

来源：评论

学校读者我要写书评

暂无评论

Triethanolamine modification produces ultra-permeable nanofiltration membrane with enhanced removal efficiency of heavy metal ions

引用

JOUrNAL OF membrane science 2022年第0期644卷 120127-120127页

作者： Zhang, Xin Jin, Pengrui Xu, daliang Zheng, Junfeng Zhan, Zi-Ming Gao, Qieyuan Yuan, Shushan Xu, Zhen-Liang van der Bruggen, Bart Katholieke Univ Leuven Dept Chem Engn Celestijnenlaan 200F B-3001 Heverlee Belgium East China Univ Sci & Technol Membrane Science& Engn R&D Ctr Chem Engn Res Ctr Sch Chem EngnState Key Lab Chem Engn 130 Meilong Rd Shanghai 200237 Peoples R China Harbin Inst Technol Sch Environm State Key Lab Urban Water Resource & Environm Harbin 1550090 Peoples R China Huazhong Univ Sci & Technol Sch Environm Sci & Engn Wuhan 430074 Peoples R China Tshwane Univ Technol Fac Engn & Built Environm Private Bag X680 ZA-0001 Pretoria South Africa

Nanofiltration membranes are attractive for the removal of the heavy metal ions but limited by the trade-off between permeance and solute rejection. membrane permeance is closely correlated to hydrophilicity and so-lute rejection is closely linked to size exclusion and donnan electrostatic repulsion. Here, triethanolamine was employed as a crosslinking agent to prepare modified polyethyleneimine/trimesoyl chloride nanofiltration (PEI/ TMC NF) membranes with excellent separation performance for the removal of heavy metal ions from contaminated water. The permeance was more than 2 times increased from 6.4 Lm(-2)h(-1)bar(-1) to 13.6 Lm(-2)h(-1)bar(-1) due to the increase in membrane hydrophilicity resulting from the incorporation of hydrophilic hydroxyl groups on the membrane surface;the rejection of metals was high (around 97% rejection for Zn2+, Cd2+, Ni2+, Cu2+;around 92% rejection for Pb2+) due to the enhancement of positive charges on the membrane surface resulting from lone pair electrons of N elements on triethanolamine and the decrease in pore size of the membrane (MWCO from 280 da to 220 da). The short-term filtration test (72 h) of the simulated wastewater with various metal ions shows that the prepared membranes have excellent stability for industrial application. Unlike the traditional superior permeance achieved by ultrathin membranes with weakness and defects, the triethanolamine modification endows the pristine PEI-TMC NF membranes with superior performance without the complicated methods for thickness reduction.

关键词： divalent heavy metal ions Kevlar support Triethanolamine Nanofiltration Grafting modification

来源：评论

学校读者我要写书评

暂无评论

Exploring the impact of surface oxygen vacancies on charge carrier dynamics in BiVO4 photoanodes through atmospheric pressure plasma jet post-treatment for efficiency improvement in photoelectrochemical water oxidation

引用

Applied Catalysis B: Environmental 2024年 341卷

作者： Tsai, Kai-An Lai, Chien-Chih Chen, Yu-Hung Leu, Ing-Chi Chang, Jui-Cheng Kuo, Che-Yu Tseng, Shih-Wen Li, Yan Pu, Ying-Chih Department of Materials Science National University of Tainan Tainan700301 Taiwan School of Medicine College of Medicine National Cheng Kung University Tainan70101 Taiwan Department of Chemical Engineering and R&D Center for Membrane Technology Chung Yuan Christian University Taoyuan320314 Taiwan Core Facility Center of National Cheng Kung University Tainan70101 Taiwan School of Materials Science and Engineering University of Science and Technology Beijing Beijing100083 China

We have demonstrated the production of high-density surface oxygen vacancy (ovs) in BiVO4 (BVO) photoanodes through the post-treatment of an atmospheric pressure plasma jet (APPJ). The 3.4-fold enhancement of photocurrent density of BVO photoanodes at 1.23 VrHE for photoelectrochemical (PEC) water oxidation due to 95 % of charge transfer efficiency at the BVO/electrolyte interface. In-situ transient absorption spectroscopy investigations provided insights into the charge carrier dynamics of the APPJ-treated BVO photoanode, revealing that abundant electrons could effectively be trapped in the ovs states to prevent charge carrier recombination. NiOOH/FeOOH oxygen evolution co-catalyst was further decorated on the APPJ-treated BVO photoanode resulted in a remarkable photocurrent density of 3.6 mA/cm2 at 1.23 VrHE, an anodic bias photon-to-current efficiency of 1.4 % at 0.62 VrHE, and a faradaic efficiency over 90 % in PEC water splitting. Our study provides important and novel insights into the surface vacancy engineering of metal oxides for green hydrogen production. © 2023 Elsevier B.V.

关键词： Transient absorption spectroscopy

来源：评论

学校读者我要写书评

暂无评论

Continuous facilitated transport pathway constructed by in-situ interlinkage of mobile aniline with fixed carriers distributing along nanofibers for carbon capture

引用

JOUrNAL OF membrane science 2024年 697卷

作者： Zheng, Wenji Jian, Xiangjun Shi, Zhengwen Li, Ziheng ruan, Xuehua Jiang, Xiaobin Wang, Hanli Yang, Zhendong Li, Xiangcun dai, Yan He, Gaohong Dalian Univ Technol Sch Chem Engn Ocean & Life R&D Ctr Membrane Science& Technol State Key Lab Fine Chem Dalian 116023 Liaoning Peoples R China Dalian Univ Technol Panjin Inst Ind Technol Panjin 124221 Liaoning Peoples R China Shandong Huaxia Shenzhou New Mat Co Ltd Zibo 256401 Peoples R China

Facilitated transport membrane with fixed and mobile carriers is essential yet challenging to improve the CO2 capture. Herein, a facilitated transport membrane with continuous pathway was constructed by the in -situ interlinkage of mobile aniline with the fixed carriers distributing along electrospun polyacrylonitrile (PAN) nanofibers. In this membrane, fixed amine carriers are introduced through the alkalinous hydrolysis of PAN fibers (HPAN), and are distributed along the HPAN fibers to construct a long-range continuous transport pathway for CO2. The mobile aniline carriers are introduced into the interfibrous voids of the HPAN nanofibers mat (NFM) by in -situ polymerization of Poly (ethylene glycol) diacrylate (PEGdA), which interlink the fixed amine carriers to achieve the facilitated transport pathway continuous completely. And the fixed amine and mobile aniline carriers are demonstrated to co -exist in the An/PEO@HPAN membrane (NFCM) by the FTIr and XPS results. Meanwhile, the Xrd and dSC results indicate that the introduction of aniline increases the free volume of PEO matrix, which is beneficial for enhancing CO2 permeation. Therefore, the 10 wt% An/PEO@HPAN-3h NFCM presents 90.81 % and 13.15 % increases in CO2 permeability and CO2/N2 selectivity under mixed gas at 0.3 MPa in contrast with the membrane without mobile aniline carriers. Under mixed gas conditions, this NFCM exhibits CO2 permeability of 202.93 Barrer and CO2/N2 selectivity of 83.89 at 0.1 MPa, reaching the 2019 McKeown upper bound.

关键词： Continuous transport pathway Facilitated transport Fixed amine carriers Mobile carriers CO2 capture

来源：评论

学校读者我要写书评

暂无评论

Pa Layer Tuned Via Ta-Loaded Stabilized Chemically Converted Graphene Oxide Sandwich for High-Performance Forward Osmosis

SSRN

引用

SSrN 2023年

作者： ren, Tian-Xiang Jia, rui Xu, Zhen-Liang Fang, Yin-Xin Yu, Miao Jin, Xiao-Gang Ma, Xiao-Hua Chaoyang, Feng State Key Laboratory of Chemical Engineering Membrane Science and Engineering R&D Lab Chemical Engineering Research Center School of Chemical Engineering East China University of Science and Technology 130 Meilong Road Shanghai200237 China Department of Chemical Engineering and Applied Chemistry Pulp & Paper Centre University of Toronto 200 College Street TorontoONM5S 3E5 Canada School of Materials Science and Engineering

Graphene oxide (GO) has been widely used in the development of nanocomposite membranes for the treatment of water and desalination. However, poor structural stability and low permeability are limiting factors for the practical use of GO membranes in water purification applications. In this work, high-performance forward osmosis (FO) membranes were fabricated by chemical conversion of graphene oxide as an intercalation layer. Chemically converted graphene oxide (CCG) improved the stability of GO. Fe3+ acted as a bridge connecting the substrate and CCG by chemical bonding, which improved the adhesion strength of CCG on the substrate membrane. They ensured that the membrane remained stable in the 70 h test. Molecular dynamics demonstrates that TA slows MPd diffusion. Finally, tannic acid (TA) molecules loaded on the CCG tuned the polyamide (PA) layer structure, and CCG reduced the PA layer thickness, which reinforced the permeability (46.40 L m-2 h-1) and the salt rejection (3.07 g m-2 h-1). This work puts forward a quite enlightening emerging thinking for the preparation of stable and excellent-performance GO thin-film nanocomposite (TFN) FO membranes. © 2023, The Authors. All rights reserved.

关键词： Graphene

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：