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Metal-encapsulated nitrogen-doped carbon nanotube arrays electrode for enhancing sulfion oxidation reaction and hydrogen evolution reaction by regulating of intermediate adsorption

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Chinese Chemical Letters 2024年第8期35卷 533-538页

作者： Xiao Li Wanqiang Yu Yujie Wang Ruiying Liu Qingquan Yu Riming Hu xuchuan jiang Qingsheng Gao Hong Liu Jiayuan Yu Weijia Zhou Institute for Advanced Interdisciplinary Research(iAIR) School of Chemistry and Chemical EngineeringUniversity of JinanJi’nan 250022China Institute for Smart Materials&Engineering School of Materials Science and EngineeringUniversity of JinanJi’nan 250022China College of Chemistry and Materials Science and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and ApplicationsJinan UniversityGuangzhou 510632China State Key Laboratory of Crystal Materials Shandong UniversityJi’nan 250100China

For treatment of sulfion-containing wastewater,coupling the electrochemical sulfion oxidation reaction(SOR)with hydrogen evolution reaction(HER)can be an ideal way for sulfur and H_(2)resources ***,we synthesize a metal-modified carbon nanotube arrays electrode(Co@N-CNTs/CC)for SOR and *** electrode has excellent performance for SOR and HER attributed to the unique array *** can achieve 99.36 mA/cm^(2)at 0.6 V for SOR,and 10 mA/cm^(2)at 0.067 V for *** functional theory calculations verify that metal modification is able to regulate the electronic structure of carbon nanotube,which is able to optimize the adsorption of *** Co@N-CNTs/CC as bifunctional elec-trodes to establish a hybrid electrolytic cell can reduce about 67%of energy consumption compared with the traditional water splitting electrolytic ***,the hybrid electrolytic cell is used to treat actual sulfion-containing wastewater,achieving the sulfur yield of 30 mg h^(−1)cm^(−2)and the hydrogen production of 0.64 mL/min.

关键词： Sulfion oxidation reaction Hydrogen evolution reaction Nitrogen-doping carbon nanotube Core-shell structure Resource upgrade

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超疏水涂层的制备、性能及应用研究进展

复合材料学报 2024年第8期41卷 3950-3967页

作者：杨立凯吴林森杨旭马佳晨聂永蒋绪川济南大学智能材料与工程研究院济南250022

随着材料工程和涂料工业的发展,具有耐腐蚀、自清洁、防雾、减阻或抗结冰等性能的超疏水涂层由于能够满足不同应用领域的功能需求,越来越受到研究人员的关注。此外,通过进一步在涂层内部引入隔热、防冰、阻燃、防腐等功能填料可赋予其... 详细信息

随着材料工程和涂料工业的发展,具有耐腐蚀、自清洁、防雾、减阻或抗结冰等性能的超疏水涂层由于能够满足不同应用领域的功能需求,越来越受到研究人员的关注。此外,通过进一步在涂层内部引入隔热、防冰、阻燃、防腐等功能填料可赋予其多功能性,极大地拓宽了超疏水涂层的应用领域。本文首先对超疏水涂层的原理进行了梳理;进一步阐述了超疏水涂层的经典润湿理论,包括杨氏模型、Wenzel模型和Cassie-Baxter模型;随后分析了超疏水涂层不同制备方法的特点,并对各方法的优缺点进行了对比;最后通过介绍掺杂功能填料的多功能超疏水涂层研究进展,指出超疏水涂层存在的主要问题,并对其发展方向进行了展望。

关键词：表面润湿模型超疏水结构接触角涂层制备方法多功能涂层

Rapid synthesis and growth of silver nanowires induced by vanadium trioxide particles

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Particuology 2013年第4期11卷 428-440页

作者： Haitao Fu Xiaohong Yang Aibing Yu xuchuan jiang School of Materials Science and Engineering The University of New South Wales

This study demonstrates a novel approach for rapid synthesis of silver （Ag） nanowires induced by vana- dium trioxide （V2O3） particles in aqueous solution at room temperature. Silver nanowires have an average diameter of 20 nm and length up to a few micrometers by parametric optimization. The micro- structure of the silver nanowires was characterized by TEM, HRTEM, SEM, and XRD techniques. The optical property of the as-prepared product was measured by ultraviolet-visible （UV-vis） spectroscopy. The possible growth mechanism of Ag nanowires via oriented attachment of Ag nanocrystals was dis- cussed. The present approach shows several unique features such as rapid （a few minutes）, reproducible and high-yield reaction with no need of any modifiers. V2O3 rods were reported for the first time to be used for synthesis of silver nanowires, playing multiple roles as reducing agent, template, and cata- lyst. The silver nanowires produced are promising for optical applications （e.g., SERS） due to their rough surface.

关键词： Ag nanowiresOriented attachmentVanadium trioxide particlesRoom-temperature synthesis

Molecular characterization of thyroid peroxidase gene in porcine (sus scrofa)

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Journal of Genetics and Genomics 2010年第6期37卷 381-388页

作者： Ying Wang Xiaofeng Zhao Xiaoling jiang xuchuan Hua Ningying Xu College of Animal Sciences Zhejiang University Hangzhou 310029 China

Thyroid peroxidase （TPO） is the key enzyme involved in thyroid hormone synthesis. Several mutations in the TPO gene may affect the normal growth and development of mammals. In this study, the TPO gene was mapped, its expression level was determined in thyroid grand at the age of 1, 20, 45, 60, 90, 120 and 150 days for Jinhua pig, the alternative splicing form was searched and the single nucleotide polymorphism （SNP, A/G642） of TPO gene was analyzed. The results showed that the porcine TPO was mapped to 3q22-27, the expres- sion level of TPO was relatively stable among the various ages and two novel transcript variants in porcine TPO gene were found： the splicing variant TPO-2 lacked exon 8, while TPO-3 lacked exon 8 and exon 14, 15, 16. Moreover, we found that the SNP of A/G642in the fourteenth exon of TPO gene was significantly associated with ham weight （P 〈 0.05）. Our results provided important basis on the regulation and metabolism of the thyroid gland in animals.

关键词： thyroid peroxidase (TPO) porcine (sus scrofa) chromosome mapping SNP splice variants

桥联氟代四苯基乙烯化合物的合成、发光和刺激响应性质

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高等学校化学学报 2024年第7期45卷 78-91页

作者：董一然李凤姣苗金玲聂永李天瑞许春月刘威刘广宁蒋绪川济南大学智能材料与工程研究院济南250022 济南大学化学化工学院山东省氟化学化工材料重点实验室济南250022

通过四苯基乙烯甲醛与乙二胺的缩合反应及进一步还原和酸化,合成了桥联氟代双四苯基乙烯化合物,桥联基团分别为亚胺(化合物1和2)、相应的胺(化合物3和4)和季铵盐(化合物5和6)基团.氟代及不同的桥联基团和取代位置对产物的发光性质具有... 详细信息

通过四苯基乙烯甲醛与乙二胺的缩合反应及进一步还原和酸化,合成了桥联氟代双四苯基乙烯化合物,桥联基团分别为亚胺(化合物1和2)、相应的胺(化合物3和4)和季铵盐(化合物5和6)基团.氟代及不同的桥联基团和取代位置对产物的发光性质具有调控作用.亚胺桥联产物(化合物1和2)固体的发光波长与四苯基乙烯(TPE)母体基本相同,化合物2的发光量子产率(38%)比TPE(23%)高,表明桥联结合氟代策略可以精确保持TPE的发光波长并提高发光强度.研究了化合物1,2,5和6的力致发光变色性质以及化合物3和4的酸致发光变色性质.使用化合物3制作的试纸可以便捷地利用发光颜色区分盐酸、乙酸和三氟乙酸.本文结果表明,氟代-桥联策略可以通过参与分子内和分子间相互作用来调节TPE分子堆积和苯环的旋转,协同精确调控此类化合物的发光和刺激响应性质.

关键词：聚集诱导发光氟代桥联四苯基乙烯刺激响应

Preparation of ultra-high pure scandium oxide with crude product from titanium white waste acid

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Journal of Rare Earths 2023年第5期41卷 764-770,I0005页

作者： Xiujing Peng Ling Li Miaomiao Zhang Yu Cui xuchuan jiang Guoxin Sun Institute for Smart Materials&Engineering University of JinanJinan 250022China School of Chemistry and Chemical Engineering University of JinanJinan 250022China

Recovery of scandium from titanium white waste acid is an essential source of *** and economical production of high purity scandium remains a challenge.A new extractant,N,N,N’,N’-tetracyclohexyl-diglycolamide(TCHDGA),was synthesized,and the separation performance of scandium from impurity metal ions(Ti,Mn,Ba,Fe,Al and Mg)was investigated,The effects of mixing time,acid concentration and temperature on the scandium extraction were *** extraction mechanism was studied by infrared spectroscopy and the Equimole Series *** optimized conditions,the extractant shows a strong affinity to scandium in the nitric acid medium and high extraction separation factors between scandium and these impurity metal ions,A process for the purification of scandium was *** crude product obtained from titanium white waste acid,95%purity scandium oxide,can be purified to 99.99%after only one step of extraction,scrubbing,and stripping:This technology is economical and straightforward and can realize the high-value recovery of scandium in the titanium white waste acid.

关键词： TCHDGA Recovery Scandium Ultra-high pure Titanium white waste acid Rare earths

Rational design of bimetallic atoms supported on C3N monolayer to break the linear relations for efficient electrochemical nitrogen reduction

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Nano Research 2022年第9期15卷 8656-8664页

作者： Riming Hu Yanan Yu Yongcheng Li Yiran Wang Jiaxiang Shang Yong Nie xuchuan jiang Institute for Smart Materials&Engineering University of JinanJinan 250022China Shandong college of Tourism and Hospitality Jinan 250200China Qinghai Provincial Key Laboratory of New Light Alloys Qinghai Provincial Engineering Research Center of High-Performance Light Metal Alloys and FormingQinghai UniversityXining 810016China School of Materials Science and Engineering Beihang UniversityBeijing 100191China

Linear relations between the adsorption free energies of nitrogen reduction reaction(NRR)intermediates limit the catalytic activity of single atom catalysts(SACs)to reach the optimal *** improvements in NRR activity require the balance of binding strength of reaction ***,we have investigated the C_(3)N-supported monometallic(M/C_(3)N)and bimetallic(M_(1)M_(2)/C_(3)N)atoms for the electrochemical NRR by using density functional theory(DFT)*** results show that this linear relation does exist for SACs because all the intermediates bind to the same site on M/C_(3)*** the synergistic effect of the two atoms in M_(1)M_(2)/C_(3)N can create a more flexible adsorption site for intermediates,which results in the decoupling of adsorption free energies of key ***,the fundamental limitation of scaling relations on limiting potentials is broken *** notably,the optimal limiting potential is increased from−0.63 V for M/C_(3)N to−0.20 V for M_(1)M_(2)/C_(3)*** addition,the presence of bimetallic atoms can also effectively inhibit the hydrogen evolution reaction(HER)as well as improve the stability of the *** study proposes that the introduction of bimetallic atoms into C_(3)N is beneficial to break the linear relations and develop efficient NRR electrocatalysts.

关键词： nitrogen reduction reaction linear relations bimetallic atoms C_(3)N density functional theory

Constructing nanocomposites with robust covalent connection between nanoparticles and polymer for high discharged energy density and excellent tensile properties

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Journal of Energy Chemistry 2022年第5期31卷 195-205页

作者： Jiachen Ma Yabin Zhang Yan Zhang Luqing Zhang Shuxiang Zhang xuchuan jiang Hong Liu Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials School of Chemistry and Chemical EngineeringUniversity of JinanJinan 250022ShandongChina Institute for Advanced Interdisciplinary Research University of JinanJinan 250022ShandongChina State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100ShandongChina Institute for Smart Materials&Engineering University of JinanJinan 250022ShandongChina

High discharged energy density and excellent flexible properties in dielectric materials are significantly sought to meet the rapid advancements in the electronics industry. In this study, covalent bonds are constructed between poly(vinylidene fluoride-chlorotrifluoroethylene), which contains olefinic bonds, and thiol-modified BaTiO_(3) at the interface before the nanocomposite films are fabricated. The presence of the covalent bonds is proved to promote the dispersibility of the modified BaTiO_(3) and enhance the interfacial adhesion between the modified BaTiO_(3) and the polymer, followed by a remarkably positive effect in suppressing the dielectric loss(tanδ) and increasing the breakdown strength(Eb) of the nanocomposite films. In addition, the cross-linking treatment in the preparation process is found to be favourable for improving the mechanical properties of the nanocomposite films, which benefits the enhancement of Eb. Furthermore, at 400% elongation, the stretched nanocomposite film doped with 5 vol% modified BaTiO_(3) exhibits an Eb15.6% greater than that of the unstretched film, and the discharged energy density reaches 11.4 J/cm^(3) with a high discharge energy efficiency of 84.5%. This study provides a novel strategy for preparing flexible nanocomposites with powerful interfacial adhesion at high filler content to achieve high discharged energy density.

关键词： Dielectric materials Energy density Mechanical properties Interfacial adhesion Breakdown strength

Enhancing carbon dioxide reduction electrocatalysis by tuning metal-support interactions: a first principles study

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Green Chemical Engineering 2023年第3期4卷 356-364页

作者： Riming Hu Yanan Yu Yongcheng Li Yiran Wang Jiaxiang Shang xuchuan jiang Institute for Smart Materials&Engineering University of JinanJinan250022China School of Physics and Electronics Shandong Normal UniversityJinan250358China Qinghai Provincial Key Laboratory of New Light Alloys Qinghai Provincial Engineering Research Center of High-Performance Light Metal Alloys and FormingQinghai UniversityXining810016China School of Materials Science and Engineering Beihang UniversityBeijing100191China School of Materials Science and Engineering University of JinanJinan250022China

The electrochemical reduction of CO_(2) is an extremely potential technique to achieve the goal of carbon neutrality,but the development of electrocatalysts with high activity,excellent product selectivity,and long-term durability remains a great ***,the role of metal-supports interaction(MSI)between different active sites(including single and bimetallic atom sites consisting of Cu and Ni atoms)and carbon-based supports(including C_(2) N,C_(3)N_(4),N-coordination graphene,and graphdiyne)on catalytic activity,prod-uct selectivity,and thermodynamic stability towards CO_(2) reduction reaction(CRR)is systematically investi-gated by first principles *** results show that MSI is mainly related to the charge transfer behavior from metal sites to supports,and different MSI leads to diverse magnetic moments and d-band ***,the adsorption and catalytic performance can be efficiently improved by tuning ***,the bimetallic atom supported graphdiyne not only exhibits a better catalytic activity,higher product selec-tivity,and higher thermodynamic stability,but also effectively inhibits the hydrogen evolution *** finding provides a new research idea and optimization strategy for the rational design of high-efficiency CRR catalysts.

关键词： Carbon dioxide reduction Metal-support interaction Bimetallic atoms Carbon-based support First-principles calculation