High-Density COH x Network Glass

• Published in: Journal of physical chemistry. C Vol. 124; no. 1; pp. 107 - 114
• Main Authors: Ryu, Young Jay, Yoo, Choong-Shik, Lim, Jinhyuk, Kim, Minseob, Yong, Xue, Tse, John S
• Format: Journal Article
• Language: English
• Published: American Chemical Society 09.01.2020
• ISSN: 1932-7447; 1932-7455
• DOI: 10.1021/acs.jpcc.9b09479

Polymeric solids made of simple “organic” hydrocarbons are primarily in one-dimensional (1D) chains and less frequently in 2D polymers like graphene. Research efforts aimed at development of 3D hydrocarbon polymers have resulted in low-density covalent–organic and metal–organic frameworks. However, the synthesis of dense hydrocarbon networks with high chemical energy density has not been achieved. Here, we present evidences of a new high-density (∼3.23 g/cm3), predominantly single-bonded transparent COH x (x < 2) network glass, synthesized by chemical reactions in dense solid mixtures of CO and H2 at 9–30 GPa and recovered at ambient conditions with long-term stability. This material constitutes a first made, dense 3D hydrocarbon polymer at a class of diamond and cubic-BN, which can be used for chemical energy storage and novel electro-optical materials.