An efficient strategy to boost the directed migration of photogenerated holes by introducing phthalocyanine as a hole extraction layer

Abstract

Although the sluggish water oxidation kinetics could be optimized by the decoration of cocatalyst, the transport of photogenerated charges in the bulk photoanode is still a critical bottleneck in cocatalyst...

Enhanced Performance of Porphyrin-Modified CuO-Co3O4 Heterojunction as a Photoelectrocatalyst for Methanol Oxidation

“…Figure S9 shows the normalized transient photoluminescence kinetics of Cu 2 Co 1 and TCPP/Cu 2 Co 1 . It can be seen the PL lifetime of TCPP/Cu 2 Co 1 is 1.42 ns, which is lower than that of Cu 2 Co 1 (2.35 ns), indicating that the unrestricted transfer of photogenerated charges in the bulk TCPP/Cu 2 Co 1 . , The synergistic effect of TCPP and Cu 2 Co 1 is further demonstrated by the higher photovoltage intensity of TCPP/Cu 2 Co 1 than Cu 2 Co 1 from the surface photovoltage (SPV) spectra (Figure D). − In summary, the TCPP/Cu 2 Co 1 composite has efficient charge separation and transfer, which has a positive effect on MOR.…”

Enhancement of photoelectrocatalytic performance of copper cobaltate nanoflowers modified with 5,10,15,20-tetrakis(4-carboxylphenyl)porphyrin for methanol oxidation under light

“…8A shows H 2 TCPP/ CuCo 2 O 4 exhibits higher photovoltage intensity than the pristine CuCo 2 O 4 , which provides the proof that the separation efficiency of photogenerated charges is enhanced under the synergistic effect of CuCo 2 O 4 and H 2 TCPP. [53][54][55] Meanwhile, the efficient separation of photogenerated charges has also been confirmed by the PL spectra. As shown in Fig.…”

Sustainable Phthalocyanine-Modified TiO2 Nanofilm as a Light-Operated Nanozyme for Colorimetric Determination of L-Penicillamine

“…16−18 In comparison to porphyrins, phthalocyanine molecules possess extended two-dimensional (2D) π−π conjugated bonds, beneficial to the charge transport performance between different components. 19,20 L-penicillamine (LPA) is a metabolite in the penicillin class of antibiotics. However, the metabolic process in humans can be related to changing chirality excessively, which usually can cause a different effect.…”

“…Therefore, scientists are focusing on the activity increase of nanozymes through multiple components. Organic molecules (porphyrins and perylene diimide) are usually selected to modify the inorganic nanozymes to obtain the enhanced activity from the synergistic effect of different components. − In comparison to porphyrins, phthalocyanine molecules possess extended two-dimensional (2D) π–π conjugated bonds, beneficial to the charge transport performance between different components. , …”