Revealing the hidden performance of metal phthalocyanines for CO2 reduction electrocatalysis by hybridization with carbon nanotubes

Zhan, Jing; Wang, Yan; Zhang, Xiao; Zheng, Hongzhi; Wang, Xiaojun; Liang, Yongye

doi:10.1007/s12274-019-2455-z

Cited by 74 publications

(46 citation statements)

References 31 publications

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“…The hybridization with carbon nanotubes is also reported to minimize CoPc aggregation in many cases. 177 Besides the catalyst loading and the specific catalyst-support interaction, the stability of the system can be improved by introducing suitable modifications to the ligand framework. The presence of sterically hindered long alkoxy chains (34) on the phthalocyanine backbone constituted an effective strategy to contrast CoPc aggregation on graphene sheets, leading to better CO 2 RR performances.…”

Section: àmentioning

confidence: 99%

“…In comparison with the direct loading of molecular catalysts on the electrode, CNT hybridization revealed to be an effective strategy to boost the CO 2 -to-CO conversion catalytic performances of Co, Fe and Mn phthalocyanine catalysts, being the Co counterpart still the most active across the series. 177 Recent examples of efficient and selective molecular catalysts based on Cu 205,206 and Ni 207 phthalocyanine catalysts have been also recently reported for selective CO 206,207 or CH 4 205 production in aqueous media.…”

Section: Other Transition Metalsmentioning

confidence: 99%

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Transition metal-based catalysts for the electrochemical CO₂reduction: from atoms and molecules to nanostructured materials

et al. 2020

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Section: àmentioning

confidence: 99%

Section: Other Transition Metalsmentioning

confidence: 99%

Transition metal-based catalysts for the electrochemical CO₂reduction: from atoms and molecules to nanostructured materials

et al. 2020

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“…[ 14 ] With maximum atom utilization and unique properties, each atom acts as an isolated catalytic site and shows better catalytic performance than the surface atom of corresponding nanometer‐sized crystals. [ 15–18 ] To date, single‐atom catalyst can be easily synthesized by a series of wet‐chemistry synthetic strategies and exhibits great potential in electrocatalytic, thermocatalytic, and photocatalytic fields. [ 19 ]…”

Section: Introductionmentioning

confidence: 99%

Single‐Unit‐Cell Catalysis of CO₂ Electroreduction over Sub‐1 nm Cu₉S₅ Nanowires

Yang

Zuo

Yang

et al. 2021

Advanced Energy Materials

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As a bridge between nanocrystal catalysts and single‐atom catalysts, single‐unit‐cell catalysts seem at first glance to be unavailable for catalysis due to quantum effects and synthetic difficulties. Here, 24 nm Cu9S5 nanowires are synthesized via the LaMer pathway. Interestingly, when polyoxometalate (POM) clusters are introduced during the nucleation process, the 0.9 nm Cu9S5 nanowires are finally formed via covalent co‐assembly, analog to A–B–A–B‐type block co‐polymerization in the polymer field (“A” and “B” represent Cu9S5 unit cells and POM clusters, respectively). Multiple characterizations show that Cu9S5 exists as single‐unit‐cell structure. Therefore, each unit cell can work as an isolated active site. The single‐unit‐cell structure exhibits higher electrocatalytic activity and Faradaic efficiency (FE) of formic acid (82.0% at −0.8 V vs reversible hydrogen electrode (RHE)) during CO2 electroreduction, while the nanocrystal structure generates HCOO−, methanol, and ethanol with low FEs. This study suggests that the single‐unit‐cell catalyst displays great potential for precise catalysis by the finite size effect.

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“…However, the bulk structure suppresses the mass transfer and Cu utilization. Immobilizing porphyrin Cu complex onto the highly conductive carbon black can be an effective strategy to solve the aforementioned problems . Owing to more easily accessible reaction sites, TCPP‐Cu exhibits a higher current density.…”

Section: Figurementioning

confidence: 99%

Freestanding Millimeter‐Scale Porphyrin‐Based Monoatomic Layers with 0.28 nm Thickness for CO₂ Electrocatalysis

et al. 2020

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Developing two-dimensional (2D) and single atomic layered materials is a fascinating challenge. Here we successfully synthesize porphyrin-based monoatomic layer (PML), a freestanding 2D porphyrin-based material of monomer-unit thickness (2.8). The solvothermal method provides a bottom-up approach for tailoring the monoatomic layer from the nanoscale to the milliscale. PMLs containing accurately tailorable M-N 4 units (M = Cu and Au) were synthesized, which present metal center-dependent performance for CO 2 electrocatalysis. PML with Cu-N 4 centers performs high faradaic efficiencies of HCOO À and CH 4 (80.86 % and 11.51 % at À0.7 V, respectively) while PML with Au-N 4 centers generates HCOO À and CO as major products (40.90 % and 34.40 % at À0.8 V, respectively). Irreversible restructuring behavior of Cu sites is also observed. Based on the graphene-like properties and metal centerselectivity relationships, we believe that PML will play a distinct role in various applications.

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Revealing the hidden performance of metal phthalocyanines for CO2 reduction electrocatalysis by hybridization with carbon nanotubes

Cited by 74 publications

References 31 publications

Transition metal-based catalysts for the electrochemical CO₂reduction: from atoms and molecules to nanostructured materials

Transition metal-based catalysts for the electrochemical CO₂reduction: from atoms and molecules to nanostructured materials

Single‐Unit‐Cell Catalysis of CO₂ Electroreduction over Sub‐1 nm Cu₉S₅ Nanowires

Freestanding Millimeter‐Scale Porphyrin‐Based Monoatomic Layers with 0.28 nm Thickness for CO₂ Electrocatalysis

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Revealing the hidden performance of metal phthalocyanines for CO2 reduction electrocatalysis by hybridization with carbon nanotubes

Cited by 74 publications

References 31 publications

Transition metal-based catalysts for the electrochemical CO2reduction: from atoms and molecules to nanostructured materials

Transition metal-based catalysts for the electrochemical CO2reduction: from atoms and molecules to nanostructured materials

Single‐Unit‐Cell Catalysis of CO2 Electroreduction over Sub‐1 nm Cu9S5 Nanowires

Freestanding Millimeter‐Scale Porphyrin‐Based Monoatomic Layers with 0.28 nm Thickness for CO2 Electrocatalysis

Contact Info

Product

Resources

About

Transition metal-based catalysts for the electrochemical CO₂reduction: from atoms and molecules to nanostructured materials

Transition metal-based catalysts for the electrochemical CO₂reduction: from atoms and molecules to nanostructured materials

Single‐Unit‐Cell Catalysis of CO₂ Electroreduction over Sub‐1 nm Cu₉S₅ Nanowires

Freestanding Millimeter‐Scale Porphyrin‐Based Monoatomic Layers with 0.28 nm Thickness for CO₂ Electrocatalysis