For deuterium–tritium fusion reactor, the fuel of tritium is not available naturally. Tritium should be produced by the reaction of Li (n, ɑ) T. Li₄SiO₄ is one of promising candidates due to its high lithium density. In present work, effects of tritium release behavior from Li₄SiO₄ have been investigated and compared. The main release peak at lower temperature was attributed to tritium located on/near the grain surface and chemical adsorption on pore surface. The small peak at higher temperature was designated as tritium diffusion from grain including lattice and boundary. The tritium release behavior was simulated by diffusion model and surface reaction model. Tritium behavior is controlled by both diffusion and surface reaction for different stages. Based on the desorption theory, the kinetic parameters were obtained. The effects on tritium release behavior were studied. The porosity has significant effects on tritium release. Higher porosity has large specific surface providing more activation sites and fast channels for tritium release which results in lower temperature of tritium release. The main tritium release form was considered as tritium water. The release peak of deuterium moved towards lower temperature after adsorbing water vapor for 1800 h. It was demonstrated that adsorbing water was beneficial for tritium release due to isotope exchange. Compared the effects of porosity and water vapor, higher porosity has larger effects on tritium release in the present work. Based on the work, the tritium release is controlled by both diffusion and surface reaction at different stage and affected by comprehensive effects including porosity and adsorption water.

对于氘氚聚变反应堆，氚燃料自然是不可得的。氚应该通过 Li (n, ɑ) T 的反应产生。Li ₄ SiO ₄由于其高锂密度而成为有希望的候选者之一。在目前的工作中，Li ₄ SiO ₄中氚释放行为的影响进行了调查和比较。较低温度下的主要释放峰归因于位于颗粒表面上/附近的氚和孔隙表面的化学吸附。较高温度下的小峰被指定为从包括晶格和边界在内的晶粒扩散的氚。氚的释放行为通过扩散模型和表面反应模型进行模拟。氚行为受不同阶段的扩散和表面反应控制。基于解吸理论，获得了动力学参数。研究了对氚释放行为的影响。孔隙率对氚的释放有显着影响。较高的孔隙率具有较大的比表面积，为氚释放提供更多的活化位点和快速通道，从而导致较低的氚释放温度。主要的氚释放形式被认为是氚水。吸附水蒸气1800 h后，氘的释放峰向低温移动。结果表明，由于同位素交换，吸附水有利于氚的释放。在目前的工作中，比较孔隙度和水蒸气的影响，较高的孔隙度对氚释放的影响更大。基于该工作，氚的释放受不同阶段的扩散和表面反应控制，并受孔隙度和吸附水等综合效应的影响。在目前的工作中，比较孔隙度和水蒸气的影响，较高的孔隙度对氚释放的影响更大。基于该工作，氚的释放受不同阶段的扩散和表面反应控制，并受孔隙度和吸附水等综合效应的影响。在目前的工作中，比较孔隙度和水蒸气的影响，较高的孔隙度对氚释放的影响更大。基于该工作，氚的释放受不同阶段的扩散和表面反应控制，并受孔隙度和吸附水等综合效应的影响。