拓扑催化
磁制冷材料，尤其是新型室温磁制冷材料具有强磁晶耦合、体积相变效应和金属间化合物本征性质，大多表现出易碎、难加工成型等特点，解决这些难题是推动其技术应用的必由之路。无论是室温或低温磁制冷材料，要制作成为主动或被动式磁制冷工作床，都需要经历规模化和稳定化制备、切割、加工成型、磁性与非磁性测试的这一流程。本课题组对磁制冷材料的组织调控、制备成型和新概念制冷等方面进行系统研究，致力于发掘高磁熵、高导热、高强度等综合平衡指标的室温磁制冷材料，推动低能耗制备技术的发展。制冷材料，尤其是新型室温磁制冷材料具有强磁晶耦合、体积相变效应和金属间化合物本征性质，大多表现出易碎、难加工成型等特点，解决这些难题是推动其技术应用的必由之路。无论是室温或低温磁制冷材料，要制作成为主动或被动式磁制冷工作床，都需要经历规模化和稳定化制备、切割、加工成型、磁性与非磁性测试的这一流程。本课题组对磁制冷材料的组织调控、制备成型和新概念制冷等方面进行系统研究，致力于发掘高磁熵、高导热、高强度等综合平衡指标的室温磁制冷材料，推动低能耗制备技术的发展。
Reference:
1. Li, W.; Sheng, W.; Wegener, E.; Du, Y.; Li, B.; Zhang, T.; Jordan, R. Capillary Microfluidic-Assisted Surface Structuring, ACS Macro Lett. 2020, 9 (3), 328-333;
2. Du, Y.; Zhang, T.; Gieseler, D.; Schneider, M.; Hafner, D.; Sheng, W.; Li, W.; Lange, F.; Wegener, E.; Amin, I.; Jordan, R. Facile Fabrication of Bio-and Dual-Functional Poly(2-oxazoline) Bottle-Brush Brush Surfaces, Chem. Eur. J. 2020, 26 (12), 2749-2753;
3. Zhang, T.; Benetti, E. M.; Jordan, R. Surface-Initiated Cu(0)-Mediated CRP for the Rapid and Controlled Synthesis of Quasi-3D Structured Polymer Brushes, ACS Macro Lett. 2019, 8 (2), 145-153;
4. Zhang, T.; Liao, Z.; Sandonas, L. M.; Dianat, A.; Liu, X.; Xiao, P.; Amin, I.; Gutierrez, R.; Chen, T.; Zschech, E.; Cuniberti, G.; Jordan, R. Polymerization Driven Monomer Passage Through Monolayer Chemical Vapour Deposition Graphene, Nat. Commun. 2018, 9, 4051;
5. Che, Y.; Zhang, T.; Du, Y.; Ihsan, A.; Claudia, M.; Rainer, J. "On Water" Surface-Initiated Polymerization of Hydrophobic Monomers, Angew. Chem. Int. Ed. 2018, 57 (50), 16380-16384;
6. Dehghani, E. S.; Du, Y.; Zhang, T.; Ramakrishna, S. N.; Spencer, N. D.; Jordan, R.; Benetti, E. M. Fabrication and Interfacial Properties of Polymer Brush Gradients by Surface-Initiated Cu(0)-Mediated Controlled Radical Polymerization, Macromolecules 2017, 50 (6), 2436-2446.
7. Zhang, T.; Du, Y.; Kalbacova, J.; Schubel, R.; Rodriguez, R. D.; Chen, T.; Zahn, D. R. T.; Jordan, R. Wafer-Scale Synthesis of Defined Polymer Brushes Under Ambient Conditions, Polym. Chem. 2015, 6 (47), 8176-8183;
8. Zhang, T.; Du, Y.; Müller, F.; Amin, I.; Jordan, R., Surface-Initiated Cu(0) Mediated Controlled Radical Polymerization (SI-CuCRP) Using a Copper Plate, Polym. Chem. 2015, 6 (14), 2726-2733.
固态相变材料在外场激励下，微观尺度的晶格微调会导致宏观尺度的物理特性突变，多用于固态发电、传感、制动和制冷等领域，而主动式固态制冷技术是其中最为突出的应用之一。利用固态相变材料的磁热、弹热、电热等物理现象不断发展起来的固态制冷技术具有绿色环保、高效节能的特点，理论制冷效率较传统气压缩方式可提高30%，具有极其诱人的应用前景。其中热弹相变材料可以依靠多种物理场（力、热、电、磁、光等）驱动相变潜热或调整弹性模量实现固态热效应，相变过程产生弹性形变并具有丰富的变形方式。本课题组致力于最大限度的开发利用相变过程中的弹热效应，借助磁、电等偏置场协同耦合相变增强固态热效应并探索相关科学问题
Reference:
1. Zhang, T.; Qi, H.; Liao, Z.; Horev, Y. D.; Panes-Ruiz, L. A.; Petkov, P. S.; Zhang, Z.; Shivhare, R.; Zhang, P.; Liu, K.; Bezugly, V.; Liu, S.; Zheng, Z.; Mannsfeld, S.; Heine, T.; Cuniberti, G.; Haick, H.; Zschech, E.; Kaiser, U.; Dong, R.; Feng, X. Engineering Crystalline Quasi-Two-Dimensional Polyaniline Thin Film with Enhanced Electrical and Chemiresistive Sensing Performances, Nat. Commun. 2019, 10, 4225.
2. Liu, K.; Qi, H.; Dong, R.; Shivhare, R.; Addicoat, M.; Zhang, T.; Sahabudeen, H.; Heine, T.; Mannsfeld, S.; Kaiser, U.; Zheng, Z.; Feng, X. On-Water Surface Synthesis of Crystalline, Few-Layer Two-Dimensional Polymers Assisted by Surfactant Monolayer, Nat. Chem. 2019, 11 (11), 994-1000.
3. Zhang, T.; Hou, Y.; Dzhagan, V.; Liao, Z.; Chai, G.; Löffler, M.; Olianas, D.; Milani, A.; Xu, S.; Tommasini, M.; Zahn, D. R. T.; Zheng, Z.; Zschech, E.; Jordan, R.; Feng, X. Copper-Surface-Mediated Synthesis of Acetylenic Carbon-Rich Nanofibers for Active Metal-Free Photocathodes, Nat. Commun. 2018, 9, 1140.
4. Dong, R.; Zhang, T.; Feng, X. Interface-Assisted Synthesis of 2D Materials: Trend and Challenges, Chem. Rev. 2018, 118 (13), 6189-6235.
5. Sahabudeen, H.; Qi, H.; Ballabio, M.; Polozij. M.; Olthof, S.; Shivhare, R.; Jing, Y.; Park, S.; Liu, K.; Zhang, T.; Ma, J.; Rellinghaus, B.; Mannsfeld, S.; Heine, T.; Bonn, M.; Canovas, E.; Zheng, Z.; Kaiser, U.; Dong, R.; Feng, X. Highly Crystalline and Semiconducting Imine-Based Two-Dimensional Polymers Enabled by Interfacial Synthesis, Angew. Chem. Int. Ed. 2020, 59 (15), 6028-6036.
6. Park, S.; Liao, Z.; Ibarlucea, B.; Qi, H.; Lin, H.; Becker, D.; Melidonie, J.; Zhang, T,; Sahabudeen, H.; Baraban, L.; Baek, C. K.; Zheng, Z.; Zschech, E.; Fery, A.; Heine, T.; Kaiser, U.; Cuniberti, G.; Dong, R.; Feng, X. Two-Dimensional Boronate Ester Covalent Organic Framework Thin Films with Large Single Crystalline Domains for Neuromorphic Memory Device, Angew. Chem. Int. Edit. 2020, 59 (21), 8218-8224.
