{"id":13,"date":"2021-03-16T13:09:24","date_gmt":"2021-03-16T05:09:24","guid":{"rendered":"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/?page_id=13"},"modified":"2026-01-04T15:04:01","modified_gmt":"2026-01-04T07:04:01","slug":"research","status":"publish","type":"page","link":"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/research\/","title":{"rendered":"Research"},"content":{"rendered":"<hr \/>\n<h3>Proton diffusion in ceramic fuel cells\u00a0 \u00a0 <span style=\"font-family: 'times new roman', times\">\u9676\u74f7\u71c3\u6599\u7535\u6c60\u4e2d\u7684\u8d28\u5b50\u4f20\u5bfc<\/span><\/h3>\n<p>Ceramic proton conductors are promising electrolyte materials in energy devices such as intermediate temperature solid-oxide fuel cells. However, the fundamental understanding about the relationship between the material structure and the proton transport process is still lacking, eliminating the enhancement of proton conductivity and thus the device performance. We systematically tune the crystal structure and phonon frequency in proton conductors by modulating the lattice strain using high pressure or epitaxial film growth, and study the correlation between crystal structure, lattice vibration and proton conductivity.<\/p>\n<p><span style=\"font-family: 'times new roman', times\">\u9676\u74f7\u8d28\u5b50\u5bfc\u4f53\u662f\u4e2d\u6e29\u56fa\u4f53\u6c27\u5316\u7269\u71c3\u6599\u7535\u6c60\u7b49\u80fd\u6e90\u5668\u4ef6\u7535\u89e3\u8d28\u7684\u4f18\u79c0\u5019\u9009\u6750\u6599\u3002\u7136\u800c\uff0c\u5f53\u524d\u4ecd\u7136\u7f3a\u4e4f\u5bf9\u6750\u6599\u7ed3\u6784\u548c\u8d28\u5b50\u4f20\u8f93\u8fc7\u7a0b\u4e4b\u95f4\u5173\u7cfb\u7684\u5b8c\u5584\u7406\u8bba\u7406\u89e3\uff0c\u9650\u5236\u4e86\u6750\u6599\u8d28\u5b50\u7535\u5bfc\u7387\u4ee5\u53ca\u5668\u4ef6\u6027\u80fd\u7684\u63d0\u5347\u3002\u6211\u4eec\u901a\u8fc7\u4f7f\u7528\u9ad8\u538b\u6216\u5916\u5ef6\u819c\u751f\u957f\u7684\u65b9\u6cd5\u6765\u8c03\u63a7\u6676\u683c\u5e94\u53d8\uff0c\u4ece\u800c\u7cfb\u7edf\u5730\u8c03\u8282\u8d28\u5b50\u5bfc\u4f53\u4e2d\u7684\u6676\u4f53\u7ed3\u6784\u548c\u58f0\u5b50\u9891\u7387\uff0c\u5e76\u7814\u7a76\u6676\u4f53\u7ed3\u6784\u3001\u6676\u683c\u632f\u52a8\u4e0e\u8d28\u5b50\u7535\u5bfc\u7387\u4e4b\u95f4\u7684\u8054\u7cfb\u3002<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times\"><img fetchpriority=\"high\" decoding=\"async\" class=\" wp-image-97 aligncenter\" src=\"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-content\/uploads\/sites\/24\/2021\/03\/research1-300x204.png\" alt=\"\" width=\"430\" height=\"292\" srcset=\"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-content\/uploads\/sites\/24\/2021\/03\/research1-300x204.png 300w, https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-content\/uploads\/sites\/24\/2021\/03\/research1.png 670w\" sizes=\"(max-width: 430px) 100vw, 430px\" \/><\/span><\/p>\n<p>Representative publications:<\/p>\n<ul>\n<li>H. Li, Y. Zhu, Z. Zhao, R. Ma, J. Lu, W. Wan, and Q. Chen, Mid-infrared light resonance-enhanced proton conductivity in ceramics,\u00a0<em>Nat. Commun<\/em>. 16 (2025), 7707.<\/li>\n<li>P. Du, N. Li, X. Ling, Z. Fan, A. Braun, W. Yang, Q. Chen, A. Yelon, Optimizing the Proton Conductivity with the Isokinetic Temperature in Perovskite-Type Proton Conductors According to Meyer\u2013Neldel Rule, <em>Advanced Energy Materials<\/em> 12 (2022) 2102939.<\/li>\n<li>A. Braun, Q. Chen, Experimental neutron scattering evidence for proton polaron in hydrated metal oxide proton conductors, <em>Nature Communications<\/em>\u00a08 (2017) 15830.<\/li>\n<li>Y. Gao, A.M. Nolan, P. Du, Y. Wu, C. Yang, Q. Chen, Y. Mo, S.-H. Bo, Classical and Emerging Characterization Techniques for Investigation of Ion Transport Mechanisms in Crystalline Fast Ionic Conductors, <em>Chemical Reviews<\/em> 120 (2020) 5954\u20136008. (ESI Highly Cited Paper)<\/li>\n<\/ul>\n<hr \/>\n<h3>Charge carrier transport in perovskite solar cells\u00a0 \u00a0<span style=\"font-family: 'times new roman', times\">\u9499\u949b\u77ff\u592a\u9633\u80fd\u7535\u6c60<\/span><span style=\"font-family: 'times new roman', times\">\u7684\u7535\u8377\u8f7d\u6d41\u5b50\u4f20\u8f93<\/span><\/h3>\n<p>Metal halide perovskites are applied in optoelectronic devices such as solar cells and light-emitting diodes. Despite the intensive research in the past decade, the relation between material and device structure on the charge carrier behavior are still under debate. We investigate the effects of crystal structure, microstructure and device structure on the photogenerated charge carriers and relevant photophysical processes.<\/p>\n<p><span style=\"font-family: 'times new roman', times\">\u91d1\u5c5e\u5364\u5316\u7269\u9499\u949b\u77ff\u53ef\u5e94\u7528\u4e8e\u5149\u7535\u5668\u4ef6\uff0c\u5982\u592a\u9633\u80fd\u7535\u6c60\u548c\u53d1\u5149\u4e8c\u6781\u7ba1\u4e2d\u3002\u5c3d\u7ba1\u5728\u8fc7\u53bb\u5341\u5e74\u4e2d\u8fdb\u884c\u4e86\u6df1\u5165\u7684\u7814\u7a76\uff0c\u4f46\u6750\u6599\u548c\u5668\u4ef6\u7ed3\u6784\u4e0e\u7535\u8377\u8f7d\u6d41\u5b50\u884c\u4e3a\u4e4b\u95f4\u7684\u5173\u7cfb\u4ecd\u5b58\u5728\u4e89\u8bae\u3002\u6211\u4eec\u7814\u7a76\u6676\u4f53\u7ed3\u6784\u3001\u5fae\u89c2\u7ed3\u6784\u548c\u5668\u4ef6\u7ed3\u6784\u5bf9\u5149\u751f\u8f7d\u6d41\u5b50\u548c\u76f8\u5173\u5149\u7269\u7406\u8fc7\u7a0b\u7684\u5f71\u54cd\u3002<\/span><\/p>\n<p><img decoding=\"async\" class=\"size-medium wp-image-328 aligncenter\" src=\"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-content\/uploads\/sites\/24\/2022\/05\/TOC_graphic-2-300x243.png\" alt=\"\" width=\"300\" height=\"243\" srcset=\"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-content\/uploads\/sites\/24\/2022\/05\/TOC_graphic-2-300x243.png 300w, https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-content\/uploads\/sites\/24\/2022\/05\/TOC_graphic-2.png 480w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Representative publication:<\/p>\n<ul>\n<li>Y. Wang, M.-R. Ahmadian-Yazdi, Y. Ni, Y. Jiang, M. Eslamian, Z. Jin, Q. Chen, Boosted Charge-Carrier Transport in Triple-Cation Perovskites by Ultrasonic Vibration Post Treatment, <em>Advanced Electronic Materials<\/em> (2022) 2101286.<\/li>\n<li>C. Yang, P. Du, Z. Dai, H. Li, X. Yang, Q. Chen, Effects of Illumination Direction on the Surface Potential of CH3NH3PbI3 Perovskite Films Probed by Kelvin Probe Force Microscopy, <em>ACS Applied Materials &amp; Interfaces<\/em>\u00a011 (2019) 14044\u201314050.<\/li>\n<\/ul>\n<hr \/>\n<h3><em>In situ<\/em> spectroscopic methods for nanoscale material chemistry and physics\u00a0 <span style=\"font-family: 'times new roman', times\">\u6750\u6599\u7269\u7406\u4e0e\u5316\u5b66\u539f\u4f4d\u5149\u8c31\u8868\u5f81\u65b9\u6cd5<\/span><\/h3>\n<p>To investigate the fundamental physical- and chemical-processes in energy materials and devices, we develop and use complementary <em>in situ<\/em> experimental techniques, including vibrational spectroscopies, X-ray and neutron scattering. These microscale probes are combined with conventional electrical and electrochemical characterization of materials at macro-scale. Our novel findings help to design better materials in the future.<\/p>\n<p><span style=\"font-family: 'times new roman', times\">\u4e3a\u4e86\u7814\u7a76\u80fd\u6e90\u6750\u6599\u4e0e\u5668\u4ef6\u4e2d\u7684\u57fa\u672c\u7269\u7406\u548c\u5316\u5b66\u8fc7\u7a0b\uff0c\u6211\u4eec\u5f00\u53d1\u5e76\u4f7f\u7528\u539f\u4f4d\u5b9e\u9a8c\u8868\u5f81\u65b9\u6cd5\uff0c\u5c06\u632f\u52a8\u5149\u8c31\u3001X\u5c04\u7ebf\u4e0e\u4e2d\u5b50\u6563\u5c04\u3001\u626b\u63cf\u63a2\u9488\u663e\u5fae\u955c\u7b49\u5fae\u89c2\u6d4b\u8bd5\u65b9\u6cd5\u4e0e\u5e38\u89c4\u7535\u5b66\u3001\u7535\u5316\u5b66\u5b8f\u89c2\u8868\u5f81\u624b\u6bb5\u76f8\u7ed3\u5408\uff0c\u4e3a\u9ad8\u6027\u80fd\u6750\u6599\u4e0e\u5668\u4ef6\u8bbe\u8ba1\u670d\u52a1\u3002<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times\"><img decoding=\"async\" class=\"wp-image-332 size-medium aligncenter\" src=\"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-content\/uploads\/sites\/24\/2022\/05\/TOC_site-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-content\/uploads\/sites\/24\/2022\/05\/TOC_site-300x300.jpg 300w, https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-content\/uploads\/sites\/24\/2022\/05\/TOC_site-150x150.jpg 150w, https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-content\/uploads\/sites\/24\/2022\/05\/TOC_site.jpg 433w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/span><\/p>\n<p>Representative publication:<\/p>\n<ul>\n<li>Z. Zhao, R. Wang, D. Han, X. Ling, Q. Chen, Molecular and Dissociative Adsorbed Water Concentration and Surface Protonic Conduction in Nanocrystalline TiO<sub>2<\/sub>,\u00a0<em>Small<\/em>\u00a020 (2024) 2406826.<\/li>\n<li>Q. Chen, F. El Gabaly, F. Aksoy Akgul, Z. Liu, B.S. Mun, S. Yamaguchi, A. Braun, Observation of oxygen vacancy filling under water vapor in ceramic proton conductors in situ with ambient pressure XPS, <em>Chemistry of Materials<\/em> 25 (2013) 4690\u20134696.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Proton diffusion in ceramic fuel cells\u00a0 \u00a0 \u9676\u74f7\u71c3\u6599\u7535\u6c60\u4e2d\u7684\u8d28\u5b50\u4f20\u5bfc Ceramic proton conductors are promising electrolyte materials in energy devices such as intermediate temperature solid-oxide fuel cells. However, the fundamental understanding about the relationship between the material structure and the proton transport process is still lacking, eliminating the enhancement of proton conductivity and thus the device performance. &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/research\/\"> <span class=\"screen-reader-text\">Research<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":28,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-13","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-json\/wp\/v2\/pages\/13","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-json\/wp\/v2\/comments?post=13"}],"version-history":[{"count":32,"href":"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-json\/wp\/v2\/pages\/13\/revisions"}],"predecessor-version":[{"id":581,"href":"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-json\/wp\/v2\/pages\/13\/revisions\/581"}],"wp:attachment":[{"href":"https:\/\/sites.gc.sjtu.edu.cn\/qianli-chen\/wp-json\/wp\/v2\/media?parent=13"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}