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学者姓名：王清莲
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Abstract ：
The presence of a considerable quantity of metal ions in N-methylpyrrolidone (NMP) applied for the cleaning of electronic devices, especially chips, results in a breakdown effect, thus affecting their overall durability and performance. Here, hydrogel that rich in O, N, and S active sites was prepared, which can effectively remove trace amounts of Cu (II) from N-methylpyrrolidone. The material was synthesized through a one-pot crosslinking and ion exchange method and is named SLH. The physicochemical properties and adsorption experiments were conducted. It was found that SLH-2 exhibited outstanding Langmuir maximum adsorption capacity of 136.99 mg/g at an initial Cu (II) concentration of 200 mg/L. By utilizing SLH-2 in electronic grade adsorption experiments, concentration of trace Cu (II) decreased from 12.3 μg/L to 5.39 μg/L. Additionally, concentration of Zn, Fe, Mg, and Ni significantly reduced to less than 1 μg/L, with –NH2 and –COOH playing crucial roles in the adsorption process. The research results indicate that predominant adsorption mechanisms are surface coordination and ion exchange. The adsorption energy between active functional groups and Cu (II) was calculated using density functional theory (DFT), revealing an affinity order of –COOH > –SO3H > –NH2 > –OH. This work not only developed an adsorbent for capturing trace Cu (II), but also provided new strategies for the removal of metal ions in wet chemicals. © 2024 Elsevier B.V.
Keyword ：
Adsorption Adsorption Copper compounds Copper compounds Density functional theory Density functional theory Hydrogels Hydrogels Ion exchange Ion exchange Metal ions Metal ions Physicochemical properties Physicochemical properties Trace elements Trace elements
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| GB/T 7714 | Chang, Zhouxin , Zhang, Jiamei , Ye, Changshen et al. Trace Cu (II) removal from N-methylpyrrolidone with hydrogel rich in O, N and S active sites [J]. | Separation and Purification Technology , 2024 , 337 . |
| MLA | Chang, Zhouxin et al. "Trace Cu (II) removal from N-methylpyrrolidone with hydrogel rich in O, N and S active sites" . | Separation and Purification Technology 337 (2024) . |
| APA | Chang, Zhouxin , Zhang, Jiamei , Ye, Changshen , Chen, Jie , Qi, Zhaoyang , Wang, Qinglian et al. Trace Cu (II) removal from N-methylpyrrolidone with hydrogel rich in O, N and S active sites . | Separation and Purification Technology , 2024 , 337 . |
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采用Rose汽液平衡釜测定101.3 kPa下丙酮-丁酮醇、丙酮-二丙酮醇二元体系汽液相平衡数据，并使用Wilson、 NRTL和UNIQUAC模型对测定的实验数据进行关联，得到相应的二元交互参数.对该体系的汽液相平衡进行预测，预测值和实验值吻合良好，说明3个模型都能准确描述该体系的相平衡行为.采用Herrington经验法对相平衡数据进行热力学一致性检验，结果表明所测得数据可靠.本研究结果可为丁酮醇生产的工艺设计提供基础数据.
Keyword ：
丁酮醇 丁酮醇 丙酮 丙酮 二丙酮醇 二丙酮醇 汽液相平衡 汽液相平衡 热力学一致性检验 热力学一致性检验
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| GB/T 7714 | 李胜男 , 王清莲 , 张鹏 et al. 丙酮-丁酮醇、丙酮-二丙酮醇二元汽液相平衡 [J]. | 福州大学学报(自然科学版) , 2024 , 52 (01) : 98-104 . |
| MLA | 李胜男 et al. "丙酮-丁酮醇、丙酮-二丙酮醇二元汽液相平衡" . | 福州大学学报(自然科学版) 52 . 01 (2024) : 98-104 . |
| APA | 李胜男 , 王清莲 , 张鹏 , 何剑洋 , 黄智贤 . 丙酮-丁酮醇、丙酮-二丙酮醇二元汽液相平衡 . | 福州大学学报(自然科学版) , 2024 , 52 (01) , 98-104 . |
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Catalytic hydrotreatment is one of the promising routes for upgrading pyrolysis liquids (PLs) to intermediates that can be co-fed with vacuum gas oil for FCC refinery. Among all the factors, catalysts are always crucial in catalytic hydrotreatment of PLs as hydrogenation and repolymerization reactions occur in parallel. Therefore, catalysts with sufficient hydrogenation activity are generally required to enhance the hydrogenation reaction and to inhibit the repolymerization reaction of the thermally liable compounds in PLs. Among all noble metal catalysts tested, Ru/C catalysts showed a better performance than other catalysts in terms of the oil yield and deoxygenation level. However, a clear repolymerization was observed during catalytic hydrotreatment of PLs using Ru/C catalysts, especially during mild hydrotreatment, thus there is still ample room for their activity improvement. Here, a series of Ru-based catalysts supported on nitrogen-doped carbon materials (NC) and activated carbon (AC) were prepared. The catalytic performance was evaluated for hydrotreatment of PLs in a batch autoclave (250 degrees C, 8 MPa H2, 4 h for mild hydrotreatment; 340 degrees C, 6 MPa H2, 4 h for deep hydrotreatment). The Ru catalyst supported on nitrogen-doped carbon materials, obtained by the polyol reduction method with polyvinylpyrrolidone (PVP) as the protective agent (Ru/NC (PVP)), showed a better performance (in terms of product oil properties) than the other catalysts investigated in this work, due to a good distribution of the ruthenium nanoparticles. For mild hydrotreatment the H/C ratio, O/C ratio and MCRT value were 1.42, 0.37 and 9.9 wt%, respectively. For deep hydrotreatment the H/C ratio, O/C ratio and MCRT value were 1.26, 0.16 and 4.6 wt%. The comparison with results published earlier for other hydrotreatment catalysts is satisfactory but also shows room for further improvement. GC-MS and 1H NMR results showed that the contents of thermal liable components like aldehydes (16.7 %), ketones (24.3 %) and sugars (4.0 %) in PLs were quantitatively converted under mild hydrotreatment, while phenols and alkanes significantly increased from 35.9 %, 0 % to 49.1 %, 35.3 %, respectively, especially for deep hydrotreatment compared with PLs feed. The catalyst characterization revealed that Ru/NC (PVP) with the most uniform dispersion and the smallest average particle size (1.5 nm), rendered the best performance. These findings indicate that Ru/NC (PVP) catalyst is a promising candidate for the catalytic hydrotreatment of PLs.
Keyword ：
Biomass Biomass Catalytic hydrotreatment Catalytic hydrotreatment Fast pyrolysis Fast pyrolysis Pyrolysis liquids Pyrolysis liquids rials rials Ru supported on nitrogen -doped carbon mate Ru supported on nitrogen -doped carbon mate
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| GB/T 7714 | Xia, Yunhui , Xi, Nan , Yu, Xinyang et al. Catalytic hydrotreatment of fast pyrolysis liquids from Pine wood using Ru-based catalysts supported on nitrogen-doped carbon materials [J]. | FUEL , 2024 , 368 . |
| MLA | Xia, Yunhui et al. "Catalytic hydrotreatment of fast pyrolysis liquids from Pine wood using Ru-based catalysts supported on nitrogen-doped carbon materials" . | FUEL 368 (2024) . |
| APA | Xia, Yunhui , Xi, Nan , Yu, Xinyang , Luo, Maohua , Chen, Shi , Wang, Qinglian et al. Catalytic hydrotreatment of fast pyrolysis liquids from Pine wood using Ru-based catalysts supported on nitrogen-doped carbon materials . | FUEL , 2024 , 368 . |
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Catalytic distillation is an effective and important technology for low-temperature dehydrogenation of perhydrobenzyltoluene (H12-BT). However, current researches have unfortunately failed to comprehensively understand the reaction and separation processes, hindering the broader application of catalytic distillation dehydrogenation technology. Therefore, in the study, a comprehensive dehydrogenation reaction kinetic model that accounts for the influence of the intermediate H6-BT was established firstly. Subsequently, the vapor-liquid equilibrium data for the binary systems H12-BT + H6-BT and H6-BT + H0-BT was estimated by utilizing the UNIFAC model, so as to obtain the azeotropes. By developing a modified catalytic distillation model, the catalytic distillation dehydrogenation process was examined. Our exploration revealed the existence of an optimal degree of dehydrogenation value, namely 0.8, within the catalytic distillation dehydrogenation process, yielding an approximate 23.8 % reduction in unit H2 production cost in comparison to the fully dehydrogenation case. Our findings contribute valuable insights that have the potential to promote the overall development of the hydrogen energy economy.
Keyword ：
Catalytic distillation Catalytic distillation Degree of dehydrogenation Degree of dehydrogenation Dehydrogenation process Dehydrogenation process Perhydro-benzyltoluene Perhydro-benzyltoluene Reaction kinetic Reaction kinetic
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| GB/T 7714 | Wang, Qinglian , Le, Keyu , Lin, Yi et al. Investigation on catalytic distillation dehydrogenation of perhydro-benzyltoluene: Reaction kinetics, modeling and process analysis [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 482 . |
| MLA | Wang, Qinglian et al. "Investigation on catalytic distillation dehydrogenation of perhydro-benzyltoluene: Reaction kinetics, modeling and process analysis" . | CHEMICAL ENGINEERING JOURNAL 482 (2024) . |
| APA | Wang, Qinglian , Le, Keyu , Lin, Yi , Yin, Wang , Lin, Yixiong , Alekseeva, Maria, V et al. Investigation on catalytic distillation dehydrogenation of perhydro-benzyltoluene: Reaction kinetics, modeling and process analysis . | CHEMICAL ENGINEERING JOURNAL , 2024 , 482 . |
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Compressing metal foam flow field usually causes a higher pressure drop and uncontrollable pore structure while enhancing the water discharge capability of proton exchange membrane fuel cell (PEMFC). To further enhance the water discharge capability of metal foam flow field at a low cost of pressure drop, a novel metal foam flow field exhibiting hierarchical pore structure(dcoarse/dfine=2; Vcoarse/Vfine=1; dfine=0.5 mm) is first introduced. This work numerically investigates water management characteristics and output performance of novel metal foam flow field. Subsequently, 3D printing technology is employed to precisely manufacture metal foam flow fields, which are compared with several flow fields in the cathode side experimentally. Experimental results demonstrate that at 1.5 A/cm2 during 3 h, the amount of water discharge in metal foam flow field with hierarchical pore structure is close to parallel flow field, which is 1.12 times and 1.30 times that in metal foam flow field with uniform coarse pore and uniform fine pore, respectively. Moreover, compared with the previous optimized strategy, namely metal foam flow field with 75 PPI and a compression rate of 0.75, metal foam flow field with hierarchical pore structure can not only improve the maximum net power density by 9.5 % and water discharge amount by 14.1 %, but also decrease two-thirds of the pressure drop in the cathode side. This research lays the theoretical groundwork and offers technical insight for the implementation of metal foam flow fields in PEMFCs. © 2024 Elsevier B.V.
Keyword ：
3D printing 3D printing Cathodes Cathodes Drops Drops Flow fields Flow fields Metal foams Metal foams Parallel flow Parallel flow Pore structure Pore structure Pressure drop Pressure drop Proton exchange membrane fuel cells (PEMFC) Proton exchange membrane fuel cells (PEMFC) Water management Water management
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| GB/T 7714 | Sun, Yun , Lin, Yixiong , Wan, Zhongmin et al. Water management and performance enhancement in proton exchange membrane fuel cell through metal foam flow field with hierarchical pore structure [J]. | Chemical Engineering Journal , 2024 , 494 . |
| MLA | Sun, Yun et al. "Water management and performance enhancement in proton exchange membrane fuel cell through metal foam flow field with hierarchical pore structure" . | Chemical Engineering Journal 494 (2024) . |
| APA | Sun, Yun , Lin, Yixiong , Wan, Zhongmin , Wang, Qinglian , Yang, Chen , Yin, Wang et al. Water management and performance enhancement in proton exchange membrane fuel cell through metal foam flow field with hierarchical pore structure . | Chemical Engineering Journal , 2024 , 494 . |
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Furfuryl alcohol (FOL) is commercially available by selective hydrogenation of furfural (FAL). A variety of catalysts have been developed for such purpose, among which Cu-based catalysts show superior catalytic performance. However, copper nanoparticles with complex valence states are easy to agglomerate during hydrogenation reaction, which might have a negative influence on the catalytic performance. The carbon coating is an efficient strategy to prevent the sintering of Cu-based catalysts. Herein, a strategy based on the thermal decomposition of Cu-EDTA complex was designed to prepare carbon encapsulated Cu-based catalysts. The prepared catalysts were applied in the selective hydrogenation of FAL to FOL in the batch reactor. The results showed that a nearly quantitative conversion of FAL with a selectivity of 98.7 % towards FOL was achieved using CuOx@NC-150 (molar ratio of Cu: Na4EDTA·4H2O=2:1; obtained by oxidative activation at 150 °C) under 140 °C, 3 MPa in 4 h. The performance was comparable to that of the commercial CuCr2O4 catalyst under the identical conditions. In addition, the developed carbon encapsulated Cu-based catalysts exhibited a slightly better stability than CuCr2O4 catalyst in terms of FOL yield in five consecutive cycles. XPS and XAES characterizations implied that the presence of a suitable surface ratio of Cu+/(Cu++Cu0) of the prepared catalyst may contribute to the selective hydrogenation of FAL to FOL. © 2024 Elsevier B.V.
Keyword ：
Aldehydes Aldehydes Batch reactors Batch reactors Carbon Carbon Catalyst selectivity Catalyst selectivity Chromium compounds Chromium compounds Coatings Coatings Copper compounds Copper compounds Decomposition Decomposition Furfural Furfural Hydrogenation Hydrogenation Molar ratio Molar ratio Sintering Sintering
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| GB/T 7714 | Xi, Nan , Chen, Shiting , Bao, Ruixi et al. Layered carbon encapsulated CuOx nanopaticles for selective hydrogenation of furfural to furfuryl alcohol [J]. | Molecular Catalysis , 2024 , 565 . |
| MLA | Xi, Nan et al. "Layered carbon encapsulated CuOx nanopaticles for selective hydrogenation of furfural to furfuryl alcohol" . | Molecular Catalysis 565 (2024) . |
| APA | Xi, Nan , Chen, Shiting , Bao, Ruixi , Wang, Qinglian , Lin, Yixiong , Yue, Jun et al. Layered carbon encapsulated CuOx nanopaticles for selective hydrogenation of furfural to furfuryl alcohol . | Molecular Catalysis , 2024 , 565 . |
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The balance between water discharge and mass transfer within metal foam flow field is vital for elevating the performance of proton exchange membrane fuel cell (PEMFC). To obtain an improved balance, this work designs a novel bilayer structure with two types of PPI (pore per inch) for metal foam flow field. Experimental and numerical results confirmed that arranging a metal foam featuring a smaller PPI in the layer 1 near the membrane electrode assembly (MEA) and a larger PPI in the layer 2 away from the MEA is beneficial to enhance the output performance. The excellent PPI combination for balancing mass transfer and water discharge involves utilizing a 50 PPI metal foam for the layer 1 and 110 PPI metal foam for the layer 2. Compared to conventional metal foam with 50 PPI, metal foam flow field with excellent PPI combination showcases a 11.2 % increase in water discharge and a 13.2 % boost in mass transfer, leading to a notable 23.5 % performance enhancement. Similarly, compared to conventional metal foam with 110 PPI, there is a 7.3 % decrease in mass transfer but a significant 29.5 % increases in water discharge, leading to a 15.2 % performance improvement. © 2024 Elsevier Ltd
Keyword ：
Bilayer structure Bilayer structure Mass transfer Mass transfer Metal foam flow field Metal foam flow field PEMFC PEMFC Water discharge Water discharge
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| GB/T 7714 | Sun, Y. , Lin, Y. , Wang, Q. et al. Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell [J]. | Applied Thermal Engineering , 2024 , 257 . |
| MLA | Sun, Y. et al. "Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell" . | Applied Thermal Engineering 257 (2024) . |
| APA | Sun, Y. , Lin, Y. , Wang, Q. , Yin, W. , Liu, B. , Yang, C. et al. Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell . | Applied Thermal Engineering , 2024 , 257 . |
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3D flow field design usually improves the performance of proton exchange membrane fuel cell (PEMFC) with the penalty of a dramatically increasing pressure drop. To surmount this issue, a novel windward bend flow field that exhibits superior mass transfer performance under a constant pumping power is proposed in this study. The performance of PEMFC with windward bend flow field is numerically compared with two canonical 3D flow fields, namely 3D wave flow field and cutting cylindrical baffles flow field. Results demonstrated that compared with two canonical 3D flow fields, windward bend flow field gets a better water management capability. The optimal distance, tilt angle and direction for the windward bend structure embedded in channel are 2.0 mm, 15 degrees (at the direction of the front section of the windward bend structure tilts towards membrane electrode assembly). Furthermore, the average enhancement rate of the maximum power density of PEMFC with optimal windward bend flow field is 7.6 % and 12.4 % compared with cutting cylindrical baffles flow field and 3D wave flow field owing to the larger Sherwood number of optimal windward bend flow field under the specified pumping power range.
Keyword ：
PEMFC PEMFC Pumping power Pumping power Structure optimization Structure optimization Water management Water management Windward bend structure Windward bend structure
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| GB/T 7714 | Sun, Yun , Lin, Yixiong , Wang, Qinglian et al. Novel design and numerical investigation of a windward bend flow field for proton exchange membrane fuel cell [J]. | ENERGY , 2023 , 290 . |
| MLA | Sun, Yun et al. "Novel design and numerical investigation of a windward bend flow field for proton exchange membrane fuel cell" . | ENERGY 290 (2023) . |
| APA | Sun, Yun , Lin, Yixiong , Wang, Qinglian , Yang, Chen , Yin, Wang , Wan, Zhongmin et al. Novel design and numerical investigation of a windward bend flow field for proton exchange membrane fuel cell . | ENERGY , 2023 , 290 . |
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The ultra-deep desulfurization of oil needs to be solved urgently due to various problems, including environmental pollution and environmental protection requirements. Oxidative desulfurization (ODS) was considered to be the most promising technology. The facile synthesis of highly efficient and stable HPW-based heterogeneous catalysts for oxidative desulfurization is still a challenging task. In this paper, pentamethylene hexamine (PEHA) and phosphotungstic acid (HPW) were combined by a simple one-step method to prepare a heterogeneous catalyst of PEHA-HPW for the production of ultra-deep desulfuriza-tion fuel oil. The composite material exhibited excellent catalytic activity and high recyclability, which could reach a 100% dibenzothiophene (DBT) removal rate in 30 min and be recycled at least 5 times. Experiments and DFT simulations were used to better examine the ODS mechanism of PEHA-HPW. It was proved that the rich amino groups on the surface of PEHA-HPW play a crucial role. This work pro-vides a simple and feasible way for the manufacture of efficient HPW-based catalysts.(c) 2023 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
Keyword ：
Amino Amino Catalyst Catalyst Desulfurization Desulfurization Fuel Fuel Oxidation Oxidation Phosphotungstic acid Phosphotungstic acid
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| GB/T 7714 | Wu, Chongfu , Chen, Changsheng , Qi, Zhaoyang et al. Facile synthesis of efficient pentaethylenehexamine-phosphotungstic acid heterogeneous catalysts for oxidative desulfurization [J]. | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2023 , 63 : 140-147 . |
| MLA | Wu, Chongfu et al. "Facile synthesis of efficient pentaethylenehexamine-phosphotungstic acid heterogeneous catalysts for oxidative desulfurization" . | CHINESE JOURNAL OF CHEMICAL ENGINEERING 63 (2023) : 140-147 . |
| APA | Wu, Chongfu , Chen, Changsheng , Qi, Zhaoyang , Chen, Jie , Wang, Qinglian , Ye, Changshen et al. Facile synthesis of efficient pentaethylenehexamine-phosphotungstic acid heterogeneous catalysts for oxidative desulfurization . | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2023 , 63 , 140-147 . |
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本发明涉及一种噻唑并噻唑基聚合物及其制备方法和应用，属于材料领域，制备方法包括将芳香醛、二硫代乙酰胺和芳香胺在钯催化的条件下进行聚合。可以得到一种含有噻唑并噻唑活性位点的高效聚合物吸附剂。该聚合物具有扩展的π共轭结构，且同时具有丰富的孔道结构，独特的电子特性，可与金属进行配位络合，是一类物理化学性质稳定的高效吸附剂。
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| GB/T 7714 | 叶长燊 , 熊卓 , 陈杰 et al. 一种噻唑并噻唑基聚合物及其制备方法和应用 : CN202111477322.1[P]. | 2021-12-06 00:00:00 . |
| MLA | 叶长燊 et al. "一种噻唑并噻唑基聚合物及其制备方法和应用" : CN202111477322.1. | 2021-12-06 00:00:00 . |
| APA | 叶长燊 , 熊卓 , 陈杰 , 邱挺 , 王红星 , 黄智贤 et al. 一种噻唑并噻唑基聚合物及其制备方法和应用 : CN202111477322.1. | 2021-12-06 00:00:00 . |
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