Write an essay discussing the advantages and disadvantages of different types of hydrogen storage systems, including but not limited to metal hydrides, carbon nanotubes, liquid hydrogen, and cryo-adsorption. In your essay, consider factors such as safety, cost, storage density, efficiency, and commercial viability. Provide specific examples of each type of storage system and compare their strengths and weaknesses. Additionally, discuss any recent advancements or trends in hydrogen storage research and development. Your essay should be well-organized and clearly present arguments and evidence to support your analysis.
This prompt doesn't seem malicious.