Playing with covalent triazine framework tiles for improved CO₂ adsorption properties and catalytic performance

• Giulia Tuci,
• Andree Iemhoff,
• Housseinou Ba,
• Lapo Luconi,
• Andrea Rossin,
• Vasiliki Papaefthimiou,
• Regina Palkovits,
• Jens Artz,
• Cuong Pham-Huu and
• Giuliano Giambastiani

Beilstein J. Nanotechnol. 2019, 10, 1217–1227, doi:10.3762/bjnano.10.121

• . Keywords: covalent triazine frameworks; CO2 adsorption; CO2/N2 selectivity; dehydrogenation catalysis; ionothermal conditions; Introduction Recent years have witnessed an increasing interest in carbon-based nanomaterials as functional devices for energy-related applications [1]. Their unique properties

• CO2/N2 selectivity were measured at 298 K up to 1.2 bar. The isosteric heat of adsorption (Qst) was calculated from the measured CO2 isotherms at 273 and 298 K using a variant of the Clausius–Clapeyron equation (Equation 1) [51][63]: where Pn (n = 1 or 2) is the pressure value for isotherm n; Tn (n

• = 1 or 2) is the temperature value for isotherm n; R is the gas constant, R = 8.314 J·K−1·mol−1. CO2/N2 selectivity was calculated on the basis of the Henry model, taking into account the initial slopes of the adsorption isotherms (Supporting Information File 1, Figure S7). The IAST selectivity for a