All-organic covalent organic frameworks/perylene diimide urea polymer S-scheme photocatalyst for boosted H2 generation

Boosting exciton dissociation and charge separation in pyrene-based linear conjugated polymers for efficient photocatalytic hydrogen production

“…5b and S9-S11 †). 11,60 The photocatalytic performance is in accord with the intensity of ESR. In addition, it can be seen from the transient surface photovoltage that the photoresponse of PyFO is better than that of the other three COPs, which indicates that PyFO can further promote the separation of electronhole pairs (Fig.…”

“…7–10 The electric field polarization properties of copolymers are critical for exciton dissociation and charge-carrier migration, which is crucial in PHE. 11 However, designing and synthesizing novel linear organic copolymers with low cost and high activity and elucidating the exact active centers remain challenging. 12–14…”

“…[7][8][9][10] The electric eld polarization properties of copolymers are critical for exciton dissociation and chargecarrier migration, which is crucial in PHE. 11 However, designing and synthesizing novel linear organic copolymers with low cost and high activity and elucidating the exact active centers remain challenging. [12][13][14] Dibenzo[b,d]thiophene-S,S-dioxide (DBT) as electron acceptors had been reported extensively in PHE due to its high hydrophilicity and strong electron-withdrawing capability.…”

Metal Carbide‐Based Cocatalysts for Photocatalytic Solar‐to‐Fuel Conversion

“…[1] When using TiO 2 electrodes for water splitting, they discovered that the catalytic performance of TiO 2 could be improved by the exposure of TiO 2 to sunlight. Subsequently, the study of TiO 2 as a photocatalyst is blooming, [2] and other kinds of photocatalysts such as CdS, [3][4][5][6][7][8] g-C 3 N 4 , [9][10][11][12][13][14][15][16] layered double hydroxide, [17] metal-organic frameworks (MOFs), [18][19][20][21] covalent organic frameworks (COFs), [22][23][24] covalent organic polymer (COP), [25] and SiC [26] are also successively discovered. With the comprehensive study of various photocatalysts, the reaction mechanism for photocatalysis has Semiconductor-based photocatalytic solar-to-fuel conversion has proven an appealing strategy for achieving carbon-neutral and green-hydrogen production.…”

Identifying the roles of imine and alkyne linkages in determining the photocatalytic hydrogen evolution over thiadiazole-based covalent organic frameworks

“…However, most COFs currently used in photocatalytic hydrogen evolution employ imine linkages. [18][19][20][21] Understanding the difference in the photocatalytic performance of two different COFs linked by imine bonds and alkyne bonds can improve our understanding of the relationship between chemical bonds and photocatalytic performance, which has positive implications for the development of high-performance photocatalysts.…”