Student Fabrication and Use of Simple, Low-Cost, Paper-Based Galvanic Cells To Investigate Electrochemistry

Abstract

The stated purpose of this article is to provide teachers an inexpensive model for laboratory activity and demonstration of galvanic cells using a paper-based device. Metal strips, metal solutions, and KNO 3 solution serve as electrodes, metal ions, and electrolyte, respectively. A paper-based device is not only a support for reactions, but also a salt bridge for electrolyte. This activity ought to be interesting to all levels of chemistry from middle school classes through potential applications in upper division college classes. Furthermore, teachers may design and fabricate a paper-based device for their classes in chemistry and also related fields.

Fabricating a Low-Cost, Simple, Screen Printed Paper Towel-Based Experimental Device to Demonstrate the Factors Affecting Chemical Equilibrium and Chemical Equilibrium Constant, Kc

“…When compared to other instruments, the microfluidic paper-based analytical devices (μPADs) are recognized as a powerful analytical platform in various applications including in the educational context − due to their low cost, portability, easy and rapid fabrication, user-friendliness, and disposability after use. In addition, the white color of paper allows clear visualization with the naked eye of colorimetric assays.…”

Connecting Theory to Life: Learning Greener Electrochemistry by Taking Apart a Common Battery

“…This includes examining difficulties students have learning the science content, their affective views regarding the content, and instructors’ perspectives on how to evaluate students’ learning of the science content. In this component, we reviewed research on misconceptions, alternative views, and sources of these that students have about electrochemistry and batteries. − To better understand instructors’ perspectives on assessing student understanding of electrochemistry and battery concepts, we reviewed studies of instructors’ topic-specific knowledge of electrochemistry, , and approaches that have been taken by others to address electrochemistry learning. − We also examined studies that specifically addressed electrochemistry and batteries in terms of students’ attitudes and views. − …”

Using a Paper-Based Analytical Device Designed for Remote Learning Environments to Achieve Simple Quantitative Colorimetry without Micropipettes

“…Recently, paper-based analytical devices (PADs) have garnered significant attention as chemical education tools and analytical tools. − To date, many educational applications have been described, including in the areas of analytical chemistry, − organic synthesis, , materials chemistry, and electrochemistry. , PADs have many advantages, such as on-site usage, cost-effectiveness, ease of fabrication, good portability, and user-friendliness . Furthermore, image analysis-based colorimetry combined with smartphone devices allows straightforward detection, which requires no dedicated instruments. − ,− However, these PAD-based experimental systems are intended for use in laboratories because they require special experimental equipment, such as micropipettes.…”

“…1−6 To date, many educational applications have been described, including in the areas of analytical chemistry, 7−12 organic synthesis, 13,14 materials chemistry, 14 and electrochemistry. 15,16 PADs have many advantages, such as on-site usage, cost-effectiveness, ease of fabrication, good portability, and user-friendliness. 4 Furthermore, image analysisbased colorimetry combined with smartphone devices allows straightforward detection, which requires no dedicated instruments.…”