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Direct linkGao, Zhi; Lai, Yulian; Zhang, Liuxin; Lin, Yuzhi; Xiao, Longhui; Luo, Yidong; Luo, Feng – Journal of Chemical Education, 2021
A research-style laboratory experiment composed of the synthesis of MOF-74 materials, related structural characterization, and the cutting-edge application of electrocatalytic oxygen evolution reaction (OER) has been designed toward advanced undergraduates at East China University of Technology (ECUT). The desired monometallic MOF-74 (Ni-MOF-74…
Descriptors: Foreign Countries, Scientific Research, Laboratory Experiments, Synthesis
Xu, Chunxiu; Lin, Wanqi; Cai, Longfei – Journal of Chemical Education, 2016
A demonstration is described of electrophoretic separation of carmine and sunset yellow with a paper-based device. The channel in the paper device was fabricated by hand with a wax pen. Electrophoretic separation of carmine and sunset yellow was achieved within a few minutes by applying potential on the channel using a simple and inexpensive power…
Descriptors: Science Instruction, Scientific Concepts, Chemistry, College Science
Wan, Yanlan; Bi, Hualin – Journal of Chemical Education, 2016
Chemistry core ideas play an important role in students' chemistry learning. On the basis of the representations of chemistry core ideas about "substances" and "processes" in the Chinese Chemistry Curriculum Standards (CCCS) and the U.S. Next Generation Science Standards (NGSS), we conduct a critical comparison of chemistry…
Descriptors: Foreign Countries, Comparative Analysis, Cross Cultural Studies, Science Education
Xu, Xinhua; Wu, Meifen; Wang, Xiaogang; Yang, Yangyiwei; Shi, Xiang; Wang, Guoping – Journal of Chemical Education, 2016
The reaction process of copper-aluminum displacement in agar gel was observed at the microscopic level with a stereomicroscope; pine-like branches of copper crystals growing from aluminum surface into gel at a constant rate were observed. Students were asked to make hypotheses on the pattern formation and design new research approaches to prove…
Descriptors: Science Instruction, College Science, Secondary School Science, Science Laboratories
Wang, Yue; Xu, Xinhua; Wu, Meifen; Hu, Huikang; Wang, Xiaogang – Journal of Chemical Education, 2015
Scanning electron microscopy (SEM) was introduced into undergraduate physical chemistry laboratory curriculum to help students observe the phase composition and morphology characteristics of tin-lead alloys and thus further their understanding of binary alloy phase diagrams. The students were captivated by this visual analysis method, which…
Descriptors: Science Instruction, College Science, Undergraduate Study, Science Laboratories
Wei, Silin; Liu, Xiufeng; Wang, Zuhao; Wang, Xingqiao – Journal of Chemical Education, 2012
Research suggests that difficulty in making connections among three levels of chemical representations--macroscopic, submicroscopic, and symbolic--is a primary reason for student alternative conceptions of chemistry concepts, and computer modeling is promising to help students make the connections. However, no computer modeling-based assessment…
Descriptors: Measurement, Chemistry, Foreign Countries, Correlation
