DS_10.1177_0272989X18759488 – Supplemental material for Incorporating Genuine Prior Information about Between-Study Heterogeneity in Random Effects Pairwise and Network Meta-Analyses

<p>Supplemental material, DS_10.1177_0272989X18759488 for Incorporating Genuine Prior Information about Between-Study Heterogeneity in Random Effects Pairwise and Network Meta-Analyses by Shijie Ren, Jeremy E. Oakley, and John W. Stevens in Medical Decision Making</p

Bottom-Up Synthesis of Nitrogen-Doped Graphynes for High-Performance Electrocatalysis in a Zn-Air Battery

Nitrogen-doped carbon materials have been developing rapidly over the past decade as ideal metal-free electrocatalysts in the oxygen reduction reaction (ORR). Nevertheless, several challenges persist in the postdoping methods, including the uneven distribution of active sites and low nitrogen contents, disturbing the electrocatalytic performances of the obtained materials. In this study, we present a simple and straightforward approach for the in situ synthesis of graphyne-based catalysts via Sonogashira reaction of nitrogen-rich acetylene- and halogene-substituted heterocyclic arenes followed by heat treatment. The obtained catalyst TBGY-800 demonstrates a more positive onset potential and half-wave potential in ORR tests compared to other counterparts owing to its higher nitrogen-doping content and specific surface area. When applied as the cathode material in an actual zinc-air battery, TBGY-800 exhibits remarkable power density (138.6 mW cm–2) and specific capacity (636.6 mAh g–1). This work brings new insight for the rational design of nitrogen-rich carbon materials for electrocatalytic applications

Shedding Light on Structure–Property Relationships for Conjugated Microporous Polymers: The Importance of Rings and Strain

The photophysical properties of insoluble porous pyrene networks, which are central to their function, differ strongly from those of analogous soluble linear and branched polymers and dendrimers. This can be rationalized by the presence of strained closed rings in the networks. A combined experimental and computational approach was used to obtain atomic scale insight into the structure of amorphous conjugated microporous polymers. The optical absorption and fluorescence spectra of a series of pyrene-based materials were compared with theoretical time-dependent density functional theory predictions for model clusters. Comparison of computation and experiment sheds light on the probable structural chromophores in the various materials