The exchange behaviors of hydrogen isotopes between protonated lithium metal compounds and deuterated water or tritiated water were investigated. The various protonated lithium metal compounds were prepared by acid treatment of lithium metal compounds with different crystal structures and metal compositions. The protonated lithium metal compounds could more effectively reduce the deuterium concentration in water compared with the corresponding pristine lithium metal compounds. The H⁺ in the protonated lithium metal compounds was speculated to be more readily exchangeable with hydrons in the aqueous solution compared with Li⁺ in the pristine lithium metal compounds, and the exchanged heavier isotopes were speculated to be more stably retained in the crystal structure compared with the light protons. When the tritiated water (157.7 kBq/kg) was reacted with the protonated lithium metal compounds, the protonated lithium manganese nickel cobalt oxide was found to adsorb and retain twice as much tritium (163.9 Bq/g) as the protonated lithium manganese oxide (69.9 Bq/g) and the protonated lithium cobalt oxide (75.1 Bq/g) in the equilibrium state.

研究了质子化锂金属化合物与氘化水或氚化水之间的氢同位素交换行为。通过对具有不同晶体结构和金属组成的锂金属化合物进行酸处理来制备各种质子化锂金属化合物。与相应的原始锂金属化合物相比，质子化的锂金属化合物可以更有效地降低水中的氘浓度。与 Li ⁺相比，质子化锂金属化合物中的 H ⁺更容易与水溶液中的氢交换在原始锂金属化合物中，据推测，与轻质子相比，交换的重同位素更稳定地保留在晶体结构中。当氚化水 (157.7 kBq/kg) 与质子化锂金属化合物反应时，发现质子化锂锰镍钴氧化物吸附和保留的氚量 (163.9 Bq/g) 是质子化锂锰氧化物 (69.9 Bq/g) 的两倍Bq/g) 和处于平衡状态的质子化锂钴氧化物 (75.1 Bq/g)。