You can buy my book Graphene 101 An Inventors guide to making graphene at https://www.smashwords.com/books/view/304668 the money will help my research. thanks. This was inspired from the article 'Interlayer catalytic exfoliation realizing scalable production of large-size pristine few-layer graphene' that was pointed out to me by a friend of mine and is easily available as a download from the net if you want to check it out. Much easier than all that tedious mucking about with graphene oxide! And more in line with how i have been thinking about graphene production of late. I am also reminded quite strongly of Petrik and his magic compound. By the way - the glass gets hot!