Reactivity enhancement of lithium orthosilicate for thermochemical energy storage material usage

Cyclic CO2 absorption/desorption property of Li3NaSiO4 under the partial pressure of CO2 for practical applications

“…The cyclic property has not yet been reported for Li 2 CuO 2 , Li 5 FeO 4 , and Li 5 AlO 4 , whereas that of Li 4 SiO 4 by controlling the temperature and P(CO 2 ) has been frequently reported. 2,3,5,[9][10][11]13,14,16,19,20,25 However, the CO 2 absorption in the cyclic property was realized under a P(CO 2 ) above 0.2 bar, which is higher than the practical conditions. 1 Sufficient absorption kinetics are required under a P(CO 2 ) of ∼0.10 bar for practical applications; 1 however, a decrease in CO 2 absorption kinetics of Li 4 SiO 4 with a decreasing P(CO 2 ) was reported, 17 which contributed to the lack of the cyclic property of Li 4 SiO 4 under practical conditions.…”

Lithium compounds for thermochemical energy storage: A state-of-the-art review and future trends

“…The lithium salts used as dopants are listed in Table 2. As can be seen in the table, the main doping lithium-based salts are LiCl [63,64], LiOH [61,64], LiNO3 [65,66], Li4SiO4 [67] and LiKNO3 [62,68]. These salts have been used in multiple investigations, showing good thermal stability and expanding the applicability of the compounds as a heat storage materials.…”

A new method for the preparation of high-purity CO2-absorbing Li3NaSiO4 powder using lithium silicate and sodium carbonate

“…has been comprehensively investigated as an appropriate CO 2 -absorbing material 3–26 because it is composed of light elements, resulting in high CO 2 absorption mass per unit. A cyclic property according to the forward and reverse reaction (1) has also been confirmed.…”