ORGANIC ELECTRONICS
·
2019
·
IF 3.495
Shahua Huang,Nasir Ali,Zhaoxiang Huai,Jingpeng Ren,Yansheng Sun,Xiaohui Zhao,Guangsheng Fu,Weiguang Kong,Shaopeng Yang
High-efficiency organic solar cells (OSCs) based on low-temperature (LT) processed SnO 2 electron transport layer (ETL) are promising for their commercial use. However, high density of traps and large contact barrier for carriers at the interface between LT SnO 2 and the active layer has been reported. To solve the problem, various interface modifying layer materials, such as PFN, has been introduced. Currently, the fabrication process of such interface modifying layer materials is complex and expensive. Herein, a facile strategy involved a polar solvent ethanolamine (EA) is introduced to modify LT SnO 2 surface. By soaking the SnO 2 film into EA solution in 2-Methoxyethanol (2-ME), EA can easily anchor into SnO 2 film surface and forms a continuous monomolecular layer via dehydration reaction. The whole process is green and highly compatible with a roll-to-roll process. Further study suggests that the deep trap centers on SnO 2 surface are substantially reduced and the built-in potential in OSCs is reinforced. Finally, OSCs based on EA-modified SnO 2 demonstrated an enhanced power conversion efficiency from 10.71% to 12.45% which was comparable to those based on ZnO (12.26%) under the same experiment parameters. Our work boosts the development of the inverted OSCs with easy fabrication and compatibility with roll-to-roll process.
研究领域:
材料科学
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能源技术
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
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2025
·
IF 2.4
Xiaowen Yu,Hao Wu,Wenrui Li,Hongmin Yang
BACKGROUND The massive emission of greenhouse gases represented by CO 2 has led to many environmental and climate problems. Chemical absorption after combustion has become an effective method for CO 2 capture. Meanwhile, this method also leads to potential emission of pollutants, consisting mainly of ethanolamine (MEA) and ammonia (NH 3 ). However, few studies focus on the emission characteristics of pollutants in chemical absorption systems and the factors influencing the emissions. RESULTS In this experiment, MEA and NH 3 emissions during the CO 2 capture process by the chemical absorption method under different conditions, such as flue gas and absorbent solution temperature, liquid-to-gas ratio, CO 2 concentration in the flue gas, and absorbent CO 2 loading, were investigated. The results indicate that the MEA and NH 3 are released during the CO 2 capture process, and the amount of release varies with many parameters. Under typical conditions, the emissions of MEA and NH 3 were stabilized at 85.8 and 21.5 mg Nm −3 , respectively. The emissions of MEA and NH 3 increased steadily with the temperature of the flue gas and increasing absorbent solution. Higher liquid-to-gas ratio led to more MEA and NH 3 emissions, and higher absorbent CO 2 loading could inhibit the MEA and NH 3 emissions. Calculation of the maximum reduction rate also showed that CO 2 loading has the greatest impact on pollutant emissions, and optimizing it reduces pollutant emissions by at least 40%. CONCLUSION It was found that pollution emissions can be controlled by optimizing operating parameters, which can provide a reference for reducing pollutant emissions in the industry. © 2025 Society of Chemical Industry (SCI).
研究领域:
环境科学
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化学工程
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DOI
高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Xiaoli Xu,Hongtao Jiang,Wangwang Liu,Shengyi Wang,Xiaoping Wang,Mengyu Wang,Wei Ma,Guorong Sun,Jiming Liu
Two-dimensional transition metal carbides/nitrides (MXenes) show great potential in volatile organic compound (VOC) sensors owing to their exceptional electrical properties, numerous active sites, and abundant terminal functional groups. However, pure MXene Ti3C2Tx is prone to oxidative degradation under ambient environment, and the insufficient response and poor stability are still grand challenges. Hereby, by deliberately introducing metal oxide semiconductor in multilayer Ti3C2Tx, a promising Ti3C2Tx/SnO2 sensor with excellent long-term stability and outstanding selectivity is developed for VOC monitoring. The research shows that the Ti3C2Tx/SnO2 hybrid sensor implements efficient detection of hydrogen-bonded gases and is especially highly efficient with ethanolamine (EA). The sensitivity of the hybrid sensor to EA is improved by over 10-fold in comparison with pristine Ti3C2Tx, besides the good selectivity to over 12 different VOCs. The synergistic effects of n-n nanoheterojunctions, the large specific surface area of 45.186 m2/g and mesoporous-rich hierarchical structure, and the functional terminal groups together facilitate the EA-sensitive properties. In addition, the innovative preparation of the Ti3C2Tx/SnO2 sensor, which takes advantage of terpinol, contributes to the close contact of Ti3C2Tx/SnO2 on the ceramic tubes, thus improving the sensor sensitivity. The scientific findings of this work may provide valuable ideas for the exploration of innovatively composite gas sensors.
研究领域:
材料科学
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化学传感器
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纳米技术
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环境监测
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Mingxin Liu,Mingming Guo
Polymers have broad application potential in the field of gas sensing, yet research on their sensitisation mechanisms remains limited. In this work, non-conductive polyacrylonitrile (PAN) was converted from a linear to a polyconjugated structure by heat treatment, thereby imparting conductivity. CsPbBr 3 was further introduced to optimise the electronic structure and surface properties, significantly improving the sensitivity to ethanolamine (EA). The resultant CsPbBr 3 /PAN sensor demonstrated exceptional gas selectivity, exhibiting a response value of up to 5.09 at 100 ppm EA. Remarkably, the sensor exhibited a response time of merely 72 s without the need for temperature or ultraviolet irradiation assistance, and it retained stability for a period of two months. This study provides a novel approach to enhancing the gas sensitivity of polymers through electronic structure regulation and material structure optimisation, offering significant theoretical and practical insights for the design and development of high-performance gas sensors.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
·
IF 7.7
Yulu He,Yike Xing,Lupeng Shao,Zhe Ling,Guihua Yang,Feng Xu,Chao Wang
Castor stalk from hemp plants is an attractive lignocellulosic feedstock for biomass refining valorization due to its similar chemical composition to hardwoods. In this study, the castor stalk fibers were pretreated with efficient dual-functional ethanolamine to achieve delignification and swelling of the cellulosic fibers, followed by cellulase enzymatic digestion for biomass conversion. Experimental results showed that ethanolamine pretreatment at 160 °C for 1 h effectively removed 69.20 % of lignin and 43.18 % of hemicellulose. In addition to efficient delignification and removal of hemicellulose, the study also revealed that supramolecular structure of cellulose was another major factor affecting enzymatic hydrolysis performance. The lowered crystallinity (60–70 %) and swelled crystal sizes (2.95–3.04 nm) promoted enzymatic hydrolysis efficiency during the heterogeneous reaction process. Under optimal conditions (160 °C, 1 h; enzyme loading: 15 FPU/g substrate), promoted yields of 100 % glucose and over 90 % xylose were achieved, which were significantly higher than those obtained from untreated castor stalk. These findings highlighted the effectiveness of the dual-functional ethanolamine pretreatment strategy for efficient bioconversion of lignocellulosic feedstocks. Overall, this study provides valuable insights into the development of new strategies for the efficient utilization of biomass resources, which is essential for the sustainable development of our society.
研究领域:
生物化学
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可再生资源技术
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DOI
PubMed
高影响因子
APPLIED CATALYSIS A-GENERAL
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2020
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IF 5.006
Hong Du,Xiuyun Ma,Miao Jiang,Peifang Yan,Z. Conrad Zhang
The production of furfuryl alcohol from furfural hydrogenation in gas phase is of great significance for the valorization of biomass. The existing catalyst for this transformation suffers from high cost and complex preparation process. Thus, a highly efficient copper catalyst was developed by a simple impregnation method using ethanolamine modified granular silica as carrier. The catalytic performance was related to the amount of ethanolamine used in modification. Highly dispersed copper with uniform particle size distribution was obtained from appropriate amount of ethanolamine modified granular silica. The ethanolamine modified granular silica (mass ratio between ethanolamine and silica was 3 in the initial modification mixture) supported copper catalyst exhibited the best performance in terms of catalyst lifetime thanks to its maximum amount of Cu 0 sites and largest amount of Cu + sites. A slow deactivation of the catalyst after extended time on stream evaluation is attributed to carbon deposition and slow copper sintering.
研究领域:
催化化学
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材料科学
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生物质转化
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产品关联
DOI
高影响因子
ORIGINS OF LIFE AND EVOLUTION OF BIOSPHERES
·
2016
·Vol. 47
·期 4
·413-425
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IF 1.141
Zhang Xianlong,Tian Ge,Gao Jing,Han Mei,Su Rui,Wang Yanxiang,Feng Shouhua
Submarine hydrothermal vents are generally considered as the likely habitats for the origin and evolution of early life on Earth. In recent years, a novel hydrothermal system in Archean subseafloor has been proposed. In this model, highly alkaline and high temperature hydrothermal fluids were generated in basalt-hosted hydrothermal vents, where H 2 and CO 2 could be abundantly provided. These extreme conditions could have played an irreplaceable role in the early evolution of life. Nevertheless, sufficient information has not yet been obtained for the abiotic synthesis of amino acids, which are indispensable components of life, at high temperature and alkaline condition. This study aims to propose a new method for the synthesis of glycine in simulated Archean submarine alkaline vent systems. We investigated the formation of glycine from ethanolamine under conditions of high temperature (80–160 °C) and highly alkaline solutions (pH = 9.70). Experiments were performed in an anaerobic environment under mild pressure (0.1–8.0 MPa) at the same time. The results suggested that the formation of glycine from ethanolamine occurred rapidly and efficiently in the presence of metal powders, and was favored by high temperatures and high pressures. The experiment provides a new pathway for prebiotic glycine formation and points out the phenomenal influence of high-temperature alkaline hydrothermal vents in origin of life in the early ocean.
研究领域:
生物化学
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地球科学
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天体生物学
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产品关联
DOI
PubMed
高影响因子
Polymers
·
2026
·Vol. 18
·期 9
·1109
·
IF 5.8
Liuli Zhu,Jiatian Zhu,Jingpeng Zhou,Qin Feng,Baojie Liu,Chengrong Qin,Chen Liang,Caoxing Huang,Shuangquan Yao
To address the challenges of inefficient depolymerization and undesirable condensation side reactions of lignin in lignocellulosic biomass, this study employed an ethanolamine pyruvate protic ionic liquid (EAP) pretreatment system to achieve selective separation of lignin from eucalyptus while simultaneously enabling its in situ structural activation. Under optimized conditions (pyruvate-to-ethanolamine mole ratio of 1:3, 120 °C, 40 min), the EAP system afforded a lignin separation yield of 79.0 ± 0.6%, with dissolution yields of cellulose and hemicellulose of 9.6 ± 0.3% and 11.2 ± 0.4%, respectively. According to 2D-HSQC NMR and31P NMR analyses, the relative content of β-O-4 ether linkages in the isolated lignin decreased from 18.4 ± 0.4% to 14.2 ± 0.3% after EAP treatment. The total phenolic hydroxyl content reached 2.26 ± 0.08 mmol/g, and the syringyl-to-guaiacyl (S/G) ratio declined from 1.72 ± 0.04 to 0.71 ± 0.03. Based on these observations, it is proposed that the ethanolamine component facilitates the dissociation of the lignin network through hydrogen bonding and stabilizes reactive intermediates, while the pyruvate component participates in the cleavage of β-O-4 ether linkages and the removal of methoxy groups via proton catalysis and nucleophilic attack. Compared with the ethanolamine and ethanolamine acetate systems, EAP pretreatment yielded lignin of higher purity (98.4 ± 0.3%) under milder conditions, and the isolated lignin exhibited stronger antioxidant activity (IC50= 0.17 ± 0.02 mg/mL). This work offers insights into the development of pretreatment systems that combine efficient separation with structural preservation of lignin.
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DOI
高影响因子
ACS Applied Materials & Interfaces
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2025
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IF 8.2
Peijian Zhang,Shuai Liu,Zhiyu Wang,Naharullah Jamaluddin,Shangmei Li,Cong Ouyang,Chen Qian
Sorption-based atmospheric water harvesting (AWH) enables the conversion of atmospheric water vapor to liquid water and is expected to play a crucial role in addressing freshwater scarcity in remote and arid regions. However, achieving a high specific surface area for rapid moisture absorption in AWH materials often necessitates complex preparation and specific loading configurations. In this study, highly swellable poly[2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide (PDMAPS) and highly hygroscopic ethanolamine-decorated lithium chloride (E-LiCl) are incorporated into ordinary cotton fabrics using a simple method that combines step-drying and enrichment polymerization, achieving effective atmospheric water harvesting (1.71 g g–1, 90% RH) in the prepared composite cotton fabrics. The contents of E-LiCl and PDMAPS in the composite fabrics are regulated by the concentration of the percussor solution, retaining the original mesh structure of the cotton fabric. The porous fabric scaffold facilitates rapid heat and air convection, enabling the composite fabrics to achieve rapid moisture absorption (1.03 g g–1 h–1 within the first 60 min, 90% RH) and desorption (3.08 g g–1 h–1 within the first 30 min, 65 °C) kinetics. When the fabric is multilayer stacked in a custom-built AWH device, the theoretical water production of the device reaches 16.2 kg m–2 day–1. This means that the daily water production per unit working area of the device is sufficient to meet the daily freshwater needs of approximately six individuals. This work is expected to provide insights into the low-cost preparation of high-performance AWH materials and facilitate the practical application of AWH technologies.
研究领域:
材料科学
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环境工程
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化学工程
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高分子科学
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水资源管理
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产品关联
DOI
PubMed
高影响因子
AICHE JOURNAL
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2025
·
IF 4
Bo Wang,Shuangjiang Li,Xiandong Hao,Wenbo Zhao,Zhiyong Xu,Yongming Luo
Traditional amine scrubbing for SO 2 capture typically dilutes alcohol amines with water to improve mass transfer, resulting in high volatility and desorption energy consumption. Inspired by the exceptional properties of ionic liquid (IL) 1-ethyl-3-methylimidazolium thiocyanate ([EMIM][SCN]), we herein propose substituting water with [EMIM][SCN] in a novel SO 2 absorbent system based on N -methyl ethanolamine (MDEA). MDEA acts as the primary SO 2 absorbent, while [EMIM][SCN] serves as an auxiliary absorption component and physical properties regulator. Performance evaluations reveal that MDEA-[EMIM][SCN] achieves high thermal stability (~483.15 K), low viscosity (~26 mPa s), excellent absorption capacity (~1.64 mol/kg at 298.15 K and 2000 ppm SO 2 ), high SO 2 /CO 2 selectivity (~101), and low desorption energy (approximately −95.6 kJ/mol). Thermodynamic modeling illustrates MDEA and [EMIM][SCN] contribute independently to absorption. Optimal energy consumption was determined by the proposed objective function. This work exemplifies the non-aqueous alkanolamine/IL system for SO 2 capture, offering a promising approach for developing efficient, low-energy SO 2 absorbents.
研究领域:
化学工程
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环境科学
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热力学
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绿色化学
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产品关联
DOI
高影响因子
RSC Advances
·
2019
·Vol. 9
·期 27
·15341-15349
·
IF 3.049
Zhiqi Gu,Jin Wang,Bin Miao,Lei Zhao,Xinsheng Liu,Dongmin Wu,Jiadong Li
In this paper, we propose a highly efficient surface modification strategy on an AlGaN/GaN high electron mobility transistor (HEMT), where ethanolamine (EA) was utilized to functionalize the surface of GaN and provided amphoteric amine groups for probe molecular immobilization for bioassay application. The molecular gated-AlGaN/GaN HEMT was utilized for pH and prostate-specific antigen (PSA) detection to verify its performance as a biosensor. Benefitting from the high coating quality on the GaN surface, the performance of our biosensor is drastically improved compared to other AlGaN/GaN HEMT based pH and PSA biosensors reported before. Our molecular gated-AlGaN/GaN HEMT biosensor has achieved good static electrical performance for pH sensing, such as high sensitivity, good linearity and chemical stability. Moreover, after further immobilization of PSA antibody onto the EA aminated GaN surface, the limit of detection (LOD) for PSA detection is as low as 1 fg mL−1 in PBS buffer, which has reached an at least two orders of magnitude decrease compared to any other AlGaN/GaN HEMT based PSA biosensor reported before. And the sensitivity of our PSA biosensor has achieved a substantial increase, reaching up to 2.04% for 100 ng mL−1. The measurements of pH and PSA utilizing the EA modified AlGaN/GaN HEMT biosensor indicate that the surface modification strategy on the GaN proposed in this paper can effectively improve the performance of the AlGaN/GaN HEMT based biosensor, which demonstrates a promising application prospect in the AlGaN/GaN HEMT based biological detection field.
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产品关联
DOI
PubMed
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2019
·Vol. 34
·期 1
·e5266
·
IF 3.259
Birong Zeng,Rong Hu,Ruirui Zhou,Hong Shen,Xinyu Liu,Guorong Chen,Yiting Xu,Conghui Yuan,Weiang Luo,Lizong Dai
A metal-doped organic and inorganic hybrid polyhedral oligomeric silsesquioxanes (POSS) with a titanium atom in the POSS cage and an ethanolamine substitute group in the corner, namely MEA-Ti-POSS, was synthesized through simple condensation reaction and substitute reaction. It was blended with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) to form a kind of blending-type flame retardant system for the modification of epoxy resins. The thermal stability, flame retardancy and mechanical properties of cured epoxy resin composites were studied. Comparing with pure epoxy resin, the LOI value of EP/MEA-Ti-POSS/DOPO composites was raised from 25.2% to 32.7%, and the UL-94 grade reached V-0 level at a loading of the mixture of 5% MEA-Ti-POSS and 5% DOPO. In addition, the cone calorimetry results showed that the heat release rate, total heat release and total smoke production as well as smoke production rate were all reduced during the combustion of EP/MEA-Ti-POSS/DOPO composites. The residual char analysis revealed that carbon residues of EP/MEA-Ti-POSS/DOPO composite served as a physical protective layer to insulate the oxygen and combustible gases to reduce the ablation of the matrix. It was concluded that the mixture of MEA-Ti-POSS and DOPO not only effectively raised the thermal stability and flame retardancy of epoxy composited materials, but also improved their mechanical properties, which expanded a promising application of the metal-POSS derivatives as non-halogen additives in the flame retardant polymers.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
危险品化学品经营许可证（带存储）