Unveiling the Activity Origin of Electrocatalytic Oxygen Evolution over Isolated Ni Atoms Supported on a N‐Doped Carbon Matrix

Zhang, Huabin; Liu, Yanyu; Chen, Tao; Zhang, Jintao; Zhang, Jing; Lou, Xiong Wen David

doi:10.1002/adma.201904548

Cited by 300 publications

(194 citation statements)

References 41 publications

Supporting

Mentioning

189

Contrasting

Unclassified

Order By: Relevance

“…Besides the studies of small earth‐abundant metal NPs, to maximize the atomic efficiency and improve the catalytic activity of the electrocatalysts, scientists have been focusing on exploring rooms in nanoclusters and single‐atom catalysts 65,66. Recently, Zhang et al highlighted an efficient OER electrocatalyst with atomically distributed Ni sites on the N‐doped hollow carbon matrix (HCM@Ni‐N) 17. As illustrated in Figure A, the synthetic process evolves a hard‐template method followed by pyrolysis and acid etching processes to yield the final product.…”

Section: Classification Of the Non‐noble‐metal‐based Oer Electrocatalmentioning

confidence: 99%

Section: Classification Of the Non‐noble‐metal‐based Oer Electrocatalmentioning

confidence: 99%

“…The current OER electrocatalysts at the industrial level are highly dependent on the noble metal catalysts, primarily iridium (Ir) and ruthenium (Ru) based catalysts, especially in acidic conditions. However, the large‐scale commercialization of the noble‐metal‐based OER electrocatalysts is greatly hindered by their high cost, low crustal reserve, and relatively poor stability 16,17. This serves as a strong driving force applied to stimulate the investigations of non‐noble‐metal‐based OER electrocatalysts.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Non‐Noble‐Metal‐Based Electrocatalysts toward the Oxygen Evolution Reaction

Zang

et al. 2020

Adv Funct Materials

Self Cite

943

551

View full text Add to dashboard Cite

The development of low-cost, high-efficiency, and robust electrocatalysts for the oxygen evolution reaction (OER) is urgently needed to address the energy crisis. In recent years, non-noble-metal-based OER electrocatalysts have attracted tremendous research attention. Beginning with the introduction of some evaluation criteria for the OER, the current OER electrocatalysts are reviewed, with the classification of metals/alloys, oxides, hydroxides, chalcogenides, phosphides, phosphates/borates, and other compounds, along with their advantages and shortcomings. The current knowledge of the reaction mechanisms and practical applications of the OER is also summarized for developing more efficient OER electrocatalysts. Finally, the current states, challenges, and some perspectives for non-noble-metal-based OER electrocatalysts are discussed.

show abstract

Section: Classification Of the Non‐noble‐metal‐based Oer Electrocatalmentioning

confidence: 99%

Section: Classification Of the Non‐noble‐metal‐based Oer Electrocatalmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Non‐Noble‐Metal‐Based Electrocatalysts toward the Oxygen Evolution Reaction

Zang

et al. 2020

Adv Funct Materials

Self Cite

943

551

View full text Add to dashboard Cite

show abstract

“…For example, single atomic catalysts of Ni atoms uniformly distributed on a supported N-doped matrix has been prepared and confirmed to be efficient for the OER. This SACs has a well-controlled coordination geometry with effective electronic coupling via the Ni-N coordination that moves the Fermi level down and lowers the adsorption energy of the intermediates, thus facilitating OER kinetics [150]. Apart from the geometric effect of exposing a large population of single active sites in the SACs, tuning of the relative metal-support interaction (RMSI) also confers advantages to the outstanding photo-derived H 2 production, as reported by Guo's group [133].…”

Section: Introduction Of Surface Functionalitiesmentioning

confidence: 99%

Understanding Surface Modulation to Improve the Photo/Electrocatalysts for Water Oxidation/Reduction

Cho

Lee

2020

Molecules

View full text Add to dashboard Cite

Water oxidation and reduction reactions play vital roles in highly efficient hydrogen production conducted by an electrolyzer, in which the enhanced efficiency of the system is apparently accompanied by the development of active electrocatalysts. Solar energy, a sustainable and clean energy source, can supply the kinetic energy to increase the rates of catalytic reactions. In this regard, understanding of the underlying fundamental mechanisms of the photo/electrochemical process is critical for future development. Combining light-absorbing materials with catalysts has become essential to maximizing the efficiency of hydrogen production. To fabricate an efficient absorber-catalysts system, it is imperative to fully understand the vital role of surface/interface modulation for enhanced charge transfer/separation and catalytic activity for a specific reaction. The electronic and chemical structures at the interface are directly correlated to charge carrier movements and subsequent chemical adsorption and reaction of the reactants. Therefore, rational surface modulation can indeed enhance the catalytic efficiency by preventing charge recombination and prompting transfer, increasing the reactant concentration, and ultimately boosting the catalytic reaction. Herein, the authors review recent progress on the surface modification of nanomaterials as photo/electrochemical catalysts for water reduction and oxidation, considering two successive photogenerated charge transfer/separation and catalytic chemical reactions. It is expected that this review paper will be helpful for the future development of photo/electrocatalysts.

show abstract

“…Single atoms catalysts have been extensively studied for energy conversion and storage including thermocatalytic reaction, photocatalytic reaction, electrocatalytic reaction, and electrosynthesis, because of their maximum atom utilization, unsaturated metal species, and unique electronic structure . Recently, the single‐atom designs are introduced in the alkali ion battery field, to remedy the sluggish kinetics of the electrode materials.…”

Section: Introductionmentioning

confidence: 99%

Amidation‐Dominated Re‐Assembly Strategy for Single‐Atom Design/Nano‐Engineering: Constructing Ni/S/C Nanotubes with Fast and Stable K‐Storage

Jiang

Tian

et al. 2020

Angewandte Chemie

View full text Add to dashboard Cite

An amidation‐dominated re‐assembly strategy is developed to prepare uniform single atom Ni/S/C nanotubes. In this re‐assembly process, a single‐atom design and nano‐structured engineering are realized simultaneously. Both the NiO5 single‐atom active centers and nanotube framework endow the Ni/S/C ternary composite with accelerated reaction kinetics for potassium‐ion storage. Theoretical calculations and electrochemical studies prove that the atomically dispersed Ni could enhance the convention kinetics and decrease the decomposition energy barrier of the chemically‐absorbed small‐molecule sulfur in Ni/S/C nanotubes, thus lowering the electrode reaction overpotential and resistance remarkably. The mechanically stable nanotube framework could well accommodate the volume variation during potassiation/depotassiation process. As a result, a high K‐storage capacity of 608 mAh g−1 at 100 mA g−1 and stable cycling capacity of 330.6 mAh g−1 at 1000 mA g−1 after 500 cycles are achieved.

show abstract

Unveiling the Activity Origin of Electrocatalytic Oxygen Evolution over Isolated Ni Atoms Supported on a N‐Doped Carbon Matrix

Abstract: Unveiling the activity origin of electrocatalytic oxygen evolution over isolated Ni atoms supported on a N-doped carbon matrix

Cited by 300 publications

References 41 publications

Non‐Noble‐Metal‐Based Electrocatalysts toward the Oxygen Evolution Reaction

Non‐Noble‐Metal‐Based Electrocatalysts toward the Oxygen Evolution Reaction

Understanding Surface Modulation to Improve the Photo/Electrocatalysts for Water Oxidation/Reduction

Amidation‐Dominated Re‐Assembly Strategy for Single‐Atom Design/Nano‐Engineering: Constructing Ni/S/C Nanotubes with Fast and Stable K‐Storage

Contact Info

Product

Resources

About