Robert Graf

TL;DR: The described electrochemical exfoliation of graphene sheets into aqueous solutions of different inorganic salts shows great promise for the industrial-scale synthesis of high-quality graphene for numerous advanced applications.

TL;DR: It is found that the former does not change, whereas, at the same time, crystallinity improved with ever growing molecular weight, and polymer design principles are inferred that might be of relevance for prospective semiconductors exhibiting hole mobilities even exceeding 3 cm(2) V(-1) s(-1).

TL;DR: A cobalt-nitrogen-doped porous carbon that exhibits a ribbon-shape morphology, high surface area, mesoporous structure, and high nitrogen and cobalt content is fabricated for high-performance self-supported oxygen reduction electrocatalytsts through template-free pyrolysis of cobalt porphyrin-based conjugated mesoporus polymer frameworks.

TL;DR: In this paper, a simple broadband radiofrequency pulse sequence for the excitation of multiple-quantum coherences in the presence of fast magic-angle spinning is introduced, which is robust and insensitive to off-resonance effects, to isotropic chemical shifts, and to chemical-shift anisotropies.

TL;DR: It is shown that through slow and carefully controlled melting such polymer crystals form a heterogeneous melt with more entangled regions, where the chains are mixed, and less entangled ones, composed of individually separated chains, which shows decreased melt viscosity and provides enhanced drawability on crystallization.