According to Haiyan Sun et al., carbon aerogel, which is needed for the aerogel template in Song's method, is usually made by combining graphene and carbon nanotubes . These two materials have exceptional heat resistance, electrical conductivity, and many other superior properties. When the overall goal is to make the carbon aerogel, this would be the most optimal procedure. However, according to Zhen-yu Wu et al., these two materials are very expensive, and can be replaced by cheaper materials . Graphene, for example, could be replaced by graphene oxide, which can be much more easily synthesized, or even bought. Additionally, carbon nanotubes can be replaced with bacterial cellulose, which, according to a paper that also uses graphene oxide and bacterial cellulose as replacement, is an environmentally friendly biomass that is easily manufactured . In addition to the environmental and cost benefits of using graphene oxide and bacterial cellulose, the process used by Sun requires hydrazine, an extremely toxic chemical to the human body, to reduce the graphene and carbon nanotube aerogel . The method using graphene oxide and bacterial cellulose as alternative chemicals, on the other hand, can simply reduce the carbon aerogel by pyrolysis, according to Wu's paper . Additionally, given that the purpose of making a carbon aerogel for my paper is to serve as a template, which means that it will be burned away at the end of the process, using cheaper products like graphene oxide and bacterial cellulose will be better. Moreover, the lower heat resistant property of these carbon-based materials will not be an issue, again due to the fact that I will need to remove it at the end to obtain boron nitride aerogels, which should not be containing any carbons. However, the method of replacing carbon nanotubes with cellulose is still lacking extensive research, leading to a gap in research where different types of cellulose are tested as the carbon aerogel template. Thus, given the purpose of carbon aerogels being a temporary substitute to determine the structure of the final boron nitride aerogel, using cheap and environmentally friendly substances like graphene oxide and some kind of cellulose would be a better plan, the only question being what form of cellulose is most ideal for a heat resistant and stable structured carbon aerogel template.