Cu(<scp>ii</scp>)-Porphyrin based near-infrared molecules: synthesis, characterization and photovoltaic application

Li, Renlong; Yuan, Yongqiang; Liu, Liang; Lu, Jianfeng; Cui, Cheng‐Xing; Niu, Hong‐Ying; Wu, Zerun; Liu, Gongchu; Hu, Zhicheng; Xie, Ruihao; Huang, Fei; Zhang, Yuping

doi:10.1039/d0nj04800c

Cited by 4 publications

(2 citation statements)

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“…The mass spectrum indicated the structure of as‐prepared sample as CuTAPP (m/z = 736.2, Figure S1, Supporting Information). [ 23 ] Both scanning electron microscopy (SEM, Figure S2, Supporting Information) and transmission electron microscopy (TEM, Figure S3a, Supporting Information) images showed that CuTAPP was amorphous, with uniform distributions of Cu, N, and C elements across the whole sample.…”

Section: Resultsmentioning

confidence: 99%

Promoting Electrocatalytic CO₂ Reduction to CH₄ by Copper Porphyrin with Donor–Acceptor Structures

Wang

et al. 2022

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evolution reaction (HER), the electrocatalytic CO 2 RR generally faces several major challenges, including insufficient activity and low selectivity toward multielectron (>2e) reduction products. [3][4][5] Molecular catalysts have attracted a growing attention due to their well-defined atomic structures and tunable local electron states, which are important for rational design and preparation of efficient catalytic sites. [6,7] A variety of molecular catalysts have been demonstrated as potential CO 2 RR electrocatalysts, such as cobalt phthalocyanine (CoPc), [6] cobalt porphyrin-tetrathiafulvalene-based covalent organic framework, [8] nickel 2,3,9,10,16,17,23,24-octacyanophthalocyanine molecularly dispersed electrocatalysts, [9] cobalt polyoxometalatemetalloporphyrin organic frameworks, [10] iron porphyrin, [11] covalent Co porphyrin polymers, [12] Ni N-doping tetraphenylporphyrin, [13] and cobalt phthalocyanine/ carbon nanotubes. [14] Copper (Cu)-containing materials are known as unique candidates in multielectron (>2e) transfer reduction products such as methane (CH 4 ). [10] For instance, a copper(II) phthalocyanine was prepared with excellent electrochemical CO 2 -to-CH 4 conversion performance, ascribed to the reversible formation of Cu nanoclusters during CO 2 RR. [15] The Faradaic efficiency of methane (FE CH4 ) was 66% and corresponding partial current density was 136 mA cm −2 . Nevertheless, due to the low percentages of Cu sites in the molecular structures, the activities of the reported molecular catalysts have still remained relatively lower compared with the heterogenous Cu-based compounds [16,17] or alloys. [18,19] Incorporating donor-acceptor units into molecular structures is a useful means of tuning electron density distribution inside molecules, and promotes the formation of a build-in electric field to accelerate migration of electrons. [20] Metalloporphyrin, possessing conjugated π-electron system, can serve as excellent electron acceptor and electron transfer carrier. [21,22] Amino group (−NH 2 ) is known as a good electron donor that facilitates electron transfer, which may help to form metalloporphyrin-based CO 2 RR catalysts. Thus, we proposed that the combination of copper porphyrin and amino groups may allow for electron-state regulation and electron transfer to enhance electrochemical CO 2 RR.In this work, we synthesized a donor-acceptor modified copper porphyrin, i.e., 5,10,15,20-tetrakis(4-aminophenyl) porphyrin copper(II) (CuTAPP), with amino groups as electron Molecular catalysts have been receiving increasingly attention in the electrochemical CO 2 reduction reaction (CO 2 RR) with attractive features such as precise catalytic sites and tunable ligands. However, the insufficient activity and low selectivity of deep reduction products restrain the utilization of molecular catalysts in CO 2 RR. Herein, a donor-acceptor modified Cu porphyrin (CuTAPP) is developed, in which amino groups are linked to donate electrons toward the central CuN 4 site to enhance the CO 2 RR activity. The C...

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Section: Resultsmentioning

confidence: 99%

Promoting Electrocatalytic CO₂ Reduction to CH₄ by Copper Porphyrin with Donor–Acceptor Structures

Wang

et al. 2022

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“…Nevertheless, the use of other central metals such as Cu(II) in the porphyrin core has been scarcely used in OSCs, and the studied devices presented low efficiencies (≤3%). [44,45] These outcomes demonstrated that metalloporphyrins, which are different from Zn-porphyrins, also have great potential for the design of NFSMAs for efficient OSCs.…”

Section: Introductionmentioning

confidence: 99%

Ambipolar Behavior of a Cu(II)–Porphyrin Derivative in Ternary Organic Solar Cells

et al. 2023

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Spectral properties and photophysical processes of meso styryl substituent triphenylamine-porphyrin derivatives

Wang

Gong

Liu

et al. 2022

J. Porphyrins Phthalocyanines

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This work reports the synthesis and spectral properties of meso-styryl substituted triphenylamine-porphyrin derivatives, mP-BLP, mPPC-BLP and their metal coordinated complexes. The photophysical processes were analyzed and related to the meso-groups and centre metal ions. The meso styryl substituent in mP-BLP and its complexes are able to extend the conjugation of porphyrin macrocycle to the styryl motif, increase light harvesting ability and accelerate intersystem crossing (ISC) process. A large dihedral angle between the meso-styryl group and porphyrin macrocycle would prohibit the delocalization of electrons between the two motifs and induce the occurrence of solvation decay process. Increasing the electron-withdrawing ability of meso-substituent via additional pyrimidine group could promote the photoinduced intramolecular electron transfer (PIET) process for mPPC-BLP. Moreover, the coordination of metal ions would significantly accelerate the photophysical processes of both mP-BLP and mPPC-BLP. Specially, the Mg[Formula: see text] is helpful to the ISC process whereas Zn[Formula: see text] is adverse to the ISC process, while Cu[Formula: see text] would boost the non-radiation process. Furthermore, Zn[Formula: see text] is able to promote the PIET process of mPPC-BLP, exhibiting the highest charge-separated tendency among these porphyrins. mPPC-ZnBLP-based dye-sensitized solar cell (DSSC) devices show the highest power conversion efficiency (PCE). The photovoltaic performance of DSSC devices reveals the significancy of the photoinduced charge-separated tendency for the design of porphyrin sensitizers.

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Cu(ii)-Porphyrin based near-infrared molecules: synthesis, characterization and photovoltaic application

Abstract: Three novel Cu(ii)-porphyrin-based near-infrared non-fullerene acceptors were developed, which show strong intramolecular charge transfer absorption spectra.

Cited by 4 publications

References 60 publications

Promoting Electrocatalytic CO₂ Reduction to CH₄ by Copper Porphyrin with Donor–Acceptor Structures

Promoting Electrocatalytic CO₂ Reduction to CH₄ by Copper Porphyrin with Donor–Acceptor Structures

Ambipolar Behavior of a Cu(II)–Porphyrin Derivative in Ternary Organic Solar Cells

Spectral properties and photophysical processes of meso styryl substituent triphenylamine-porphyrin derivatives

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Cu(ii)-Porphyrin based near-infrared molecules: synthesis, characterization and photovoltaic application

Abstract: Three novel Cu(ii)-porphyrin-based near-infrared non-fullerene acceptors were developed, which show strong intramolecular charge transfer absorption spectra.

Cited by 4 publications

References 60 publications

Promoting Electrocatalytic CO2 Reduction to CH4 by Copper Porphyrin with Donor–Acceptor Structures

Promoting Electrocatalytic CO2 Reduction to CH4 by Copper Porphyrin with Donor–Acceptor Structures

Ambipolar Behavior of a Cu(II)–Porphyrin Derivative in Ternary Organic Solar Cells

Spectral properties and photophysical processes of meso styryl substituent triphenylamine-porphyrin derivatives

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Promoting Electrocatalytic CO₂ Reduction to CH₄ by Copper Porphyrin with Donor–Acceptor Structures

Promoting Electrocatalytic CO₂ Reduction to CH₄ by Copper Porphyrin with Donor–Acceptor Structures