Waste paper derived Co, N co-doped carbon as an efficient electrocatalyst for hydrogen evolution

As a renewable resource, waste paper cannot only be recycled to paper, but also can be used as a new carbon source in the material field. In the present study, starting from the abundant and inexpensive materials, the three-dimensional (3D) framework cobalt (Co) and nitrogen (N) doped (Cox–N–C) electrocatalyst was successfully prepared using waste paper and urea via a facile hydrothermal treatment and ion adsorption process, followed by a...