First Observation of Defined Structural Motifs in the Sulfur-Iodine Thermochemical Cycle and Their Role in Hydrogen Production

Table 1

The compositions of samples used in this study together with details of the excitation wavelength used.

Sample	𝑥HI	𝑥KI	𝑥I2	𝑥H2O	Excitation λ/nm
S1	0.157	—	0.000	0.843	514.5; 785
S2	0.222	—	0.000	0.778	514.5; 785
S3	0.170	—	0.079	0.751	514.5
S4	0.196	—	0.100	0.704	514.5
S5	0.118	—	0.076	0.806	514.5
S6	0.187	—	0.159	0.654	514.5
S7	0.115	—	0.180	0.705	514.5
S8	0.154	—	0.307	0.539	514.5
S9	0.118	—	0.249	0.633	514.5
S10	—	0.199	0.200	0.601	514.5
S11	—	0.153	0.276	0.571	514.5