Curvature effects on the bifunctional oxygen catalytic performance of single atom metal–N–C

Zhou, Xuyan; Jin, Zeyu; Zhang, Jingzi; Hu, Kailong; Liu, Sida; Qiu, Hua‐Jun; Lin, Xi

doi:10.1039/d2nr05974f

Cited by 11 publications

(9 citation statements)

References 58 publications

(73 reference statements)

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“…Only [O] measures the evolved oxygen and reports a FE of 98%. References: [A], 134 [B], 136 [C], 137 [D], 150 [E], 151 [F], 152 [G], 153 [H], 154 [I], 68 [J], 155 [K], 46 [L], 156 [M], 28 [N], 157 [O], 40 134 [B], 136 [C], 137 [D], 159 [E], 160 [F], 161 [G], 162 [H], 163 [I], 163 [J], 42 The first two steps of the associative mechanism are important for production of hydrogen peroxide (2e-ORR), where scission of the oxygen bond should be avoided. SACs for hydrogen peroxide have been studied in detail, with good results.…”

Section: ■ Oxygen Reduction Reactionmentioning

confidence: 99%

“…References: [A], 171 [B], 172 [C], 173 [D], 171 [E], 180 [F], 181 [G], 47 [H], 140 [I], 146 [J], 141 [K], 142 [L], 143 [M], 144 [N], 147 [O]. References: [A], 171 [B], 172 [C], 173 [D], 162 [E], 127 [F], 183 [G], 48 [H], 184 [I], 36 [J], 49 [K], 29 [L], 185 [M], 164 [N], 186 [O], 160 [P], 161 [Q], 51 [R], 187 [S], 188 [T], 186 [U], 189 [V], 190 [W], 159 [X], 41 [Y], 42 [Z], 191 [AA], 163 [AB], 170 [AC], 192 [AD].…”

Section: ■ Oxygen Reduction Reactionmentioning

confidence: 99%

“…Only [K] measures the evolved oxygen and reports a FE of above 99%. References: [A],134 [B],136 [C],137 [D],159 [E],160 [F],161 [G],162 [H],163 [I],163 [J],42 [K] 164.…”

mentioning

confidence: 99%

“…The red line marks the half-wave potential, and the purple line marks the reported limiting current density. Electrolyte is 0.1 M KOH in all cases, except for [M] which is conducted in 1 M KOH.References: [A],171 [B],172 [C],173 [D],162 [E],127 [F],183 [G],48 [H],184 [I],36 [J],49 [K],29 [L],185 [M],164 [N],186 [O],160 [P],161 [Q],51 [R],187 [S],188 [T],186 [U],189 [V],190 [W],159 [X],41 [Y],42 [Z],191 [AA],163 [AB],170 [AC],192 [AD] 192.…”

mentioning

confidence: 99%

“…The red line marks the potential gap which is the sum of the OER overpotential at 10 mA/cm 2 and the ORR overpotential at the half-wave potential. Electrolyte is either 0.1 or 1 M KOH.References: [A],159 [B],160 [C],161 [D],162 [E],164 [F] 163.…”

mentioning

confidence: 99%

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Dual and Triple Atom Electrocatalysts for Energy Conversion (CO₂RR, NRR, ORR, OER, and HER): Synthesis, Characterization, and Activity Evaluation

Roth-Zawadzki,

Nielsen,

Tankard

et al. 2024

ACS Catal.

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Dual and triple atom catalysts (DACs and TACs) are an emerging field of heterogeneous catalysis research. They share properties with single atom catalysts (SACs), such as maximizing dispersion of metals and the ability to circumvent the traditional scaling relations that limit extended surfaces. DACs and TACs additionally provide adjacent sites that are necessary for certain reaction mechanisms and add to the tunability of the electronic structure and binding energies. DACs and TACs are, however, inherently difficult to selectively synthesize and characterize. Characterization and activity evaluation are prone to misinterpretation, adding confusion to the already complex field. In this review, we investigate the current progress of DACs for important electrochemical reactions in energy conversion and storage. We further discuss current and future synthesis methods for DACs and TACs and focus on common pitfalls in characterization and activity evaluation.

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Section: ■ Oxygen Reduction Reactionmentioning

confidence: 99%

Section: ■ Oxygen Reduction Reactionmentioning

confidence: 99%

“…Only [K] measures the evolved oxygen and reports a FE of above 99%. References: [A],134 [B],136 [C],137 [D],159 [E],160 [F],161 [G],162 [H],163 [I],163 [J],42 [K] 164.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Dual and Triple Atom Electrocatalysts for Energy Conversion (CO₂RR, NRR, ORR, OER, and HER): Synthesis, Characterization, and Activity Evaluation

Roth-Zawadzki,

Nielsen,

Tankard

et al. 2024

ACS Catal.

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Recent Design Strategies for M‐N‐C Single‐Atom Catalysts in Oxygen Reduction: An Entropy Increase Perspective

Yan,

Chen,

Chen

2024

Adv Funct Materials

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Recently, a diverse array of novel metal‐nitrogen‐carbon (M‐N‐C) single‐atom catalysts (SACs) have rapidly evolve, particularly in the realm of oxygen reduction reaction (ORR). Despite the plethora of proposed design and improvement strategies for SACs, a comprehensive review systematically compiling the components in M‐N‐C from a unified perspective is notably absent. For the first time, a thorough examination of each component in M‐N‐C is conducted, focusing on the perspective of entropy increase in the active sites of SACs. For the single M‐N4 sites and the whole M‐N‐C system, an increase in entropy implies an elevated degree of disorder and chaos. Broadly, the entropy‐increasing modification of M (single mental sites) and guest groups entails an augmentation of chaos, with the most effective co‐catalytic synergy achieved by establishing multiple active sites through a “cocktail effect”. Concerning N (nitrogen and other heteroatoms) and C (carbon supports), the entropy increase modification induces heightened disorder, with symmetry breaking more likely to drive M‐N4 toward adsorbing oxygen molecules to attain an equilibrium symmetric structure. All these innovative design strategies have led to a remarkable improvement in the ORR activity and stability and offer a guiding criterion for the future preparation of SACs.

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Identifying Stable Electrocatalysts Initialized by Data Mining: Sb₂WO₆ for Oxygen Reduction

Jia,

Yu,

Liu

et al. 2023

Advanced Science

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Data mining from computational materials database has become a popular strategy to identify unexplored catalysts. Herein, the opportunities and challenges of this strategy are analyzed by investigating a discrepancy between data mining and experiments in identifying low‐cost metal oxide (MO) electrocatalysts. Based on a search engine capable of identifying stable MOs at the pH and potentials of interest, a series of MO electrocatalysts is identified as potential candidates for various reactions. Sb2WO6 attracted the attention among the identified stable MOs in acid. Based on the aqueous stability diagram, Sb2WO6 is stable under oxygen reduction reaction (ORR) in acidic media but rather unstable under high‐pH ORR conditions. However, this contradicts to the subsequent experimental observation in alkaline ORR conditions. Based on the post‐catalysis characterizations, surface state analysis, and an advanced pH‐field coupled microkinetic modeling, it is found that the Sb2WO6 surface will undergo electrochemical passivation under ORR potentials and form a stable and 4e‐ORR active surface. The results presented here suggest that though data mining is promising for exploring electrocatalysts, a refined strategy needs to be further developed by considering the electrochemistry‐induced surface stability and activity.

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Curvature effects on the bifunctional oxygen catalytic performance of single atom metal–N–C

Abstract: Understanding the fundamental relationship between the structural information of electrocatalysts and their catalytic activities plays a key role in controlling many important electrochemical processes. Recently, single-atom catalysts (SACs) with so-called...

Cited by 11 publications

References 58 publications

Dual and Triple Atom Electrocatalysts for Energy Conversion (CO₂RR, NRR, ORR, OER, and HER): Synthesis, Characterization, and Activity Evaluation

Dual and Triple Atom Electrocatalysts for Energy Conversion (CO₂RR, NRR, ORR, OER, and HER): Synthesis, Characterization, and Activity Evaluation

Recent Design Strategies for M‐N‐C Single‐Atom Catalysts in Oxygen Reduction: An Entropy Increase Perspective

Identifying Stable Electrocatalysts Initialized by Data Mining: Sb₂WO₆ for Oxygen Reduction

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Curvature effects on the bifunctional oxygen catalytic performance of single atom metal–N–C

Abstract: Understanding the fundamental relationship between the structural information of electrocatalysts and their catalytic activities plays a key role in controlling many important electrochemical processes. Recently, single-atom catalysts (SACs) with so-called...

Cited by 11 publications

References 58 publications

Dual and Triple Atom Electrocatalysts for Energy Conversion (CO2RR, NRR, ORR, OER, and HER): Synthesis, Characterization, and Activity Evaluation

Dual and Triple Atom Electrocatalysts for Energy Conversion (CO2RR, NRR, ORR, OER, and HER): Synthesis, Characterization, and Activity Evaluation

Recent Design Strategies for M‐N‐C Single‐Atom Catalysts in Oxygen Reduction: An Entropy Increase Perspective

Identifying Stable Electrocatalysts Initialized by Data Mining: Sb2WO6 for Oxygen Reduction

Contact Info

Product

Resources

About

Dual and Triple Atom Electrocatalysts for Energy Conversion (CO₂RR, NRR, ORR, OER, and HER): Synthesis, Characterization, and Activity Evaluation

Dual and Triple Atom Electrocatalysts for Energy Conversion (CO₂RR, NRR, ORR, OER, and HER): Synthesis, Characterization, and Activity Evaluation

Identifying Stable Electrocatalysts Initialized by Data Mining: Sb₂WO₆ for Oxygen Reduction