Cu<sup>II</sup>/Cu<sup>I</sup> decorated N-doped carbonaceous electrocatalysts for the oxygen reduction reaction

Kossmann, Janina; Sánchez-Manjavacas, María Luz Ortíz; Zschiesche, Hannes; Tarakina, Nadezda V.; Antonietti, Markus; Albero, Josep; López‐Salas, Nieves

doi:10.1039/d1ta09459a

Cited by 22 publications

(16 citation statements)

References 38 publications

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“…[70] Yet, the conductivity of a SC is not trivial to understand and may be influenced by many factors, e.g., particle size, grain boundaries, crystallinity, heteroatom doping, wettability, among others. [71] The present C3N4 materials' onset potentials are in the same range typically obtained for C3N4 with transition metals or hybrids C3N4 with heteroatom doping. Whilst the obtained Tafel slopes are high, the resulting materials exhibit slower performances than other reports, see Table S3.…”

Section: Photoelectrochemical Performancesupporting

confidence: 70%

Green Light Photoelectrocatalysis with Sulfur-Doped Carbon Nitride: Using Triazole-Purpald for Enhanced Benzylamine Oxidation and Oxygen Evolution Reactions

Jerigová

Markushyna

Teixeira

et al. 2022

Preprint

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Novel high performing materials will dictate the pace of reinventing industrial chemical processes to attain desired carbon neutrality targets. Regarding the urgency of exploiting solar irradiation long range visible-light photoelectrocatalysts from abundant resources will play a key role in the aforementioned effort. Anionic doping via co-polymerization and pre-organization of precursors results in tuneable and extrinsic semiconductors, making this a highly attractive methodology. Triazole derivative-purpald, an unexplored precursor but sulfur (S) container, combined with melamine during one solid-state polycondensation reaction with two thermal steps leads to S-doped carbon nitrides (C3N4). The series of S-doped/C3N4-based materials demonstrated enhanced optical, electronic, structural, geometric, textural, and morphological properties and exhibited higher performance in organic benzylamine photooxidation, oxygen evolution, and similar storing energy (capacitor brief investigation) than references. Among the five composites, 50M-50P exhibited the highest photooxidation conversion yield (84±3%) of benzylamine to imine at 535 nm – green light for 48h, due to an extra discrete shoulder reaching ~700 nm, an unusual high sulfur content, preservation of crystal size, new intraband energy states, rare deep structural defects by layer distortion, hydrophobic surface, low porosity, and 10-16 nm pores. An in-depth analysis of S doping was investigated coupling x-ray photoelectron spectroscopy, transmission electron microscope, and elemental analysis, providing insights on bonds, distribution, and surface/bulk content. This work contributes to the development of amorphous photocatalysts with long-visible-light range for solar energy conversion and storage.

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Section: Photoelectrochemical Performancesupporting

confidence: 70%

Green Light Photoelectrocatalysis with Sulfur-Doped Carbon Nitride: Using Triazole-Purpald for Enhanced Benzylamine Oxidation and Oxygen Evolution Reactions

Jerigová

Markushyna

Teixeira

et al. 2022

Preprint

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“…The oxygen coordination of copper facilitated oxygen binding during the ORR and promoted a fast 4-electron transfer mechanism. 34 , 35 …”

Section: Influence Of Oxygen Functional Groups In Electrochemical App...mentioning

confidence: 99%

“We Are Here!” Oxygen Functional Groups in Carbons for Electrochemical Applications

2022

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Heteroatom doping of carbon networks may introduce active functional groups on the surface of the material, induce electron density changes that alter the polarity of the carbon surface, promote the formation of binding sites for molecules or ions, or make the surface catalytically active for different reactions, among many other alterations. Thus, it is no surprise that heteroatom doping has become a well-established strategy to enhance the performance of carbon-based materials for applications ranging from water remediation and gas sorption to energy storage and conversion. Although oxygen functionalization is sometimes inevitable (i.e., many carbon precursors contain oxygen functionalities), its participation in carbon materials performance is often overlooked on behalf of other heteroatoms (mainly nitrogen). In this Mini-review, we summarize recent and relevant publications on the effect that oxygen functionalization has on carbonaceous materials performance in different electrochemical applications and some strategies to introduce such functionalization purposely. Our aim is to revert the current tendency to overlook it and raise the attention of the materials science community on the benefits of using oxygen functionalization in many state-of-the-art applications.

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“…4,[12][13][14][15][16] In 2011, a singleatom catalyst was reported for the rst time, which promotes the birth of single-atom doped carbon catalysts for the ORR. [17][18][19] Raw carbon almost exhibits no catalytic activity for the ORR. 7 The catalytic activity of doped carbons is attributed to the uneven distribution of charge density and electron spinning density, resulting from the dopants, defects, and edges.…”

Section: Introductionmentioning

confidence: 99%

“…4,12–16 In 2011, a single-atom catalyst was reported for the first time, which promotes the birth of single-atom doped carbon catalysts for the ORR. 17–19 Raw carbon almost exhibits no catalytic activity for the ORR. 7…”

Section: Introductionmentioning

confidence: 99%

Hierarchically porous doped carbons fabricated by the strategy of ion transfer coordination (ITC)

Fang

et al. 2022

J. Mater. Chem. A

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Cu^II/Cu^I decorated N-doped carbonaceous electrocatalysts for the oxygen reduction reaction

Abstract: Copper- and nitrogen-doped carbonaceous materials, obtained by a simple synthetic procedure are highly efficient and fast catalysts for the oxygen reduction reaction. It is shown, that Cu(i) containing materials perform with faster reaction kinetics.

Cited by 22 publications

References 38 publications

Green Light Photoelectrocatalysis with Sulfur-Doped Carbon Nitride: Using Triazole-Purpald for Enhanced Benzylamine Oxidation and Oxygen Evolution Reactions

Green Light Photoelectrocatalysis with Sulfur-Doped Carbon Nitride: Using Triazole-Purpald for Enhanced Benzylamine Oxidation and Oxygen Evolution Reactions

“We Are Here!” Oxygen Functional Groups in Carbons for Electrochemical Applications

Hierarchically porous doped carbons fabricated by the strategy of ion transfer coordination (ITC)

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CuII/CuI decorated N-doped carbonaceous electrocatalysts for the oxygen reduction reaction

Abstract: Copper- and nitrogen-doped carbonaceous materials, obtained by a simple synthetic procedure are highly efficient and fast catalysts for the oxygen reduction reaction. It is shown, that Cu(i) containing materials perform with faster reaction kinetics.

Cited by 22 publications

References 38 publications

Green Light Photoelectrocatalysis with Sulfur-Doped Carbon Nitride: Using Triazole-Purpald for Enhanced Benzylamine Oxidation and Oxygen Evolution Reactions

Green Light Photoelectrocatalysis with Sulfur-Doped Carbon Nitride: Using Triazole-Purpald for Enhanced Benzylamine Oxidation and Oxygen Evolution Reactions

“We Are Here!” Oxygen Functional Groups in Carbons for Electrochemical Applications

Hierarchically porous doped carbons fabricated by the strategy of ion transfer coordination (ITC)

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Product

Resources

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Cu^II/Cu^I decorated N-doped carbonaceous electrocatalysts for the oxygen reduction reaction