Energy conversion devices such as fuel cells, metal-air batteries, and electrolyzers have been envisaged as possible solutions for cutting down the continuous accumulation of greenhouse gases resulting from the combustion of fossil fuel. The bottleneck reaction for these devices is the oxygen reduction reaction (ORR) occurring at the cathode. The…

Metal-air battery technology is a promising new energy storage solution in the green energy economy but also an excellent tool to educate students on the working principles of batteries. A simple yet powerful construction of a metal-air battery is shown, which consists of a plastic mint box, a cathode, an anode, and an electrolyte. Furthermore,…

In recent years, solar-powered photocatalytic water splitting for hydrogen production has drawn great attention as a method to supply clean energy and reduce environmental pollution. This approach, driven by solar energy to synthesize hydrogen gas, is completely renewable and can be used to power hydrogen fuel cells to effectively solve the global…

This study examined assessment item difficulty patterns in two energy aspects, energy source/form/transfer and energy degradation/conservation, across and within science disciplines. The participant students were taking at least one college-level introductory science course. Findings showed a common pattern of item difficulties for the two energy…

Artificial photosynthesis is a promising approach to generate commodity chemicals using abundant chemical feedstocks and renewable energy sources. Despite its importance, affordable and effective hands-on classroom activities that demonstrate artificial photosynthesis and teach key concepts, especially for primary school students, are lacking.…

In the face of an increasingly severe global climate change situation, carbon neutrality initiatives have been included in the development action plans of many countries around the world. The carbon neutrality vision will also accelerate the revolution in the energy systems of countries around the world, injecting new vitality into the upgrading…

This study aims at investigating students' awareness of green chemistry principles (GCPs) which are infused in two context-based projects that are related to socio-scientific issues, namely climate change and materials' recycling. At first, content analysis of the projects' activities showed the infusion of four GCPs. Subsequently, the students'…

The objective of this dissertation was to design and study a transformative model of climate change education that foregrounded sociopolitical processes and was socially relevant to Black and Latinx urban high school students. The intervention was implemented at the Mann-UCLA Community School in South Los Angeles while distance learning was…