However, a research paper by Hongyu Li et al. demonstrated that their proposed direct chemical reaction method does indeed produce boron nitride aerogels that are not lacking in their properties . Unfortunately, the method used requires boric acid, a toxic chemical, as well as high temperatures of up to 1870 ˚C for a pyrolysis process. Another method proposed by Song is the elemental substitution method, which, according to R. Govindan Kutty, has a process that requires boron oxide and temperatures of 1600 ˚C . Even though the temperature required is slightly lower than that of Li's research method, both of them are still difficult to achieve by normal means. Furthermore, both methods also use toxic chemicals to introduce boron nitride to the aerogel. Fortunately, the method used in Song's research requires much lower temperature . This method is to use a carbon aerogel template for the boron nitride to copy. The temperature required for this process only reaches a maximum of 900 ˚C, which is almost half of the other methods, and can be more easily achieved. This method also provides multiple options to introduce boron nitride. Given the possibility to use different methods of introducing boron nitride to the aerogel from Song's method, as well as the significantly lower temperature required, this process would be much more ideal than the other two. Even though the steps required are more complicated and would require more time than the direct chemical reaction method, this weakness does not outweigh the benefits, and therefore will be the one used in this paper. While Song's method does seem to be one of the best, there are still some problems.