J.R.R. Tolkien’s Middle-earth is a wild place packed with jaw-dropping figures, from shadowy villains to shining heroes. Spanning ‘The Lord of the Rings,’ ‘The Hobbit,’ and even ‘The Rings of Power’ ...

Three-dimensional porous carbon was fabricated using lotus leaves as a renewable precursor. The as-synthesized carbon had a high surface area (3601 m2/g), suitable O–N–S self-doping, and ...

An environmentally friendly strategy was performed to prepare porous graphene nanosheets (PGS) through gas-exfoliation assisted KOH activation by using Plumeria rubra as the precursor for the first ...