Ni-Ba based dual functional materials were used to investigate the influence of reaction temperatures (600, 650 and 700 °C) on CO2 and methane conversion. This is reported by Molina-Ramirez et al. (https://doi.org/10.1016/j.jcou.2020.101201). It is noted that due to the low capacity of BaO for CO2 capture, the yield of syngas in this reported work is relatively low. As shown in the following table, during the carbon capture stage, the increase of carbonation temperature from 600 to 650 °C slightly enhances the capacity of CO2 adsorption from 0.23 to 0.37 mmol/g. The capacity reduces to 0.13 mmol/g when the temperature increases to 700 °C. During the utilisation stage, less than 20% CH4 could be converted, and the increase of reaction temperature from 600 to 700 °C results in the increase of methane conversion from 11.04 to 18.57%. It is expected that a higher temperature favours methane decomposition, thus higher H2/CO ratio is obtained with the increase of reaction temperature.
(https://doi.org/10.1016/j.jcou.2020.101201)