Confined cobalt single‐atom catalysts with strong electronic metal‐support interactions based on a biomimetic self‐assembly strategy DOI Creative Commons
Bowen Guo, Zekun Wang, Lei Zheng

et al.

Carbon Energy, Journal Year: 2024, Volume and Issue: 6(9)

Published: April 17, 2024

Abstract Designing high‐performance and low‐cost electrocatalysts for oxygen evolution reaction (OER) is critical the conversion storage of sustainable energy technologies. Inspired by biomineralization process, we utilized phosphorylation sites collagen molecules to combine with cobalt‐based mononuclear precursors at molecular level built a three‐dimensional (3D) porous hierarchical material through bottom‐up biomimetic self‐assembly strategy obtain single‐atom catalysts confined on carbonized self‐assembled carriers (Co SACs/cBSC) after subsequent high‐temperature annealing. In this strategy, biomolecule improved anchoring efficiency metal precursor precise functional groups; meanwhile, binding‐then‐assembling also effectively suppressed nonspecific adsorption ions, ultimately preventing atomic agglomeration achieving strong electronic metal‐support interactions (EMSIs). Experimental characterizations confirm that binding forms between cobalt substrate (Co–O 4 –P). Theoretical calculations disclose local environment changes significantly tailored Co d‐band center, optimized oxygenated intermediates barrier release. As result, obtained SACs/cBSC catalyst can achieve remarkable OER activity 24 h durability in 1 M KOH ( η 10 288 mV; Tafel slope 44 mV dec −1 ), better than other transition metal‐based commercial IrO 2 . Overall, presented prepare SACs EMSIs, providing new avenue preparation efficient fine structures.

Language: Английский

Understanding the structure-performance relationship of active sites at atomic scale DOI
Runze Li, Dingsheng Wang

Nano Research, Journal Year: 2022, Volume and Issue: 15(8), P. 6888 - 6923

Published: June 14, 2022

Language: Английский

Citations

480
Recent developments on iron and nickel-based transition metal nitrides for overall water splitting: A critical review DOI
Mariam Batool, Arslan Hameed, Muhammad Arif Nadeem

et al.

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 480, P. 215029 - 215029

Published: Jan. 25, 2023

Language: Английский

Citations

135
Vacancy Defects in 2D Transition Metal Dichalcogenide Electrocatalysts: From Aggregated to Atomic Configuration DOI
Xin Wang, Jing Wu, Yuwei Zhang

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 35(50)

Published: Oct. 3, 2022

Abstract Vacancy defect engineering has been well leveraged to flexibly shape comprehensive physicochemical properties of diverse catalysts. In particular, growing research effort devoted chalcogen anionic vacancies (S/Se/Te) 2D transition metal dichalcogenides (2D TMDs) toward the ultimate performance limit electrocatalytic hydrogen evolution reaction (HER). spite remarkable progress achieved in past decade, systematic and in‐depth insights into state‐of‐the‐art vacancy for 2D‐TMDs‐based electrocatalysis are still lacking. Herein, this review delivers a full picture evolving from aggregated atomic configurations covering their development background, controllable manufacturing, thorough characterization, representative HER application. Of particular interest, deep‐seated correlations between specific regulation routes resulting catalytic improvement logically clarified terms rearrangement, charge redistribution, energy band variation, intermediate adsorption–desorption optimization, charge/mass transfer facilitation. Beyond that, broader vision is cast cutting‐edge fields vacancy‐engineering‐based single‐atom catalysis dynamic structure–performance across catalyst service lifetime. Together with critical discussion on residual challenges future prospects, sheds new light rational design advanced catalysts navigates application high‐efficiency conversion storage fields.

Language: Английский

Citations

115
Emerging single atom catalysts in gas sensors DOI

Guanglu Lei,

Hongyin Pan,

Houshan Mei

et al.

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(16), P. 7260 - 7280

Published: Jan. 1, 2022

Single atom catalysts offer unprecedented opportunities for the development of highly sensitive and selective gas sensors.

Language: Английский

Citations

97
In Situ Porousized MoS2 Nano Islands Enhance HER/OER Bifunctional Electrocatalysis DOI Creative Commons
Bo Chen, PingAn Hu, Fan Yang

et al.

Small, Journal Year: 2023, Volume and Issue: 19(14)

Published: Jan. 26, 2023

2D molybdenum disulfide (MoS2 ) is developed as a potential alternative non-precious metal electrocatalyst for energy conversion. It well known that MoS2 has three main phases 2H, 1T, and 1T'. However, the most stable 2H-phase shows poor electrocatalysis in its basal plane, compared with edge sites. In this work, facile one-step hydrothermal-driven situ porousizing of into self-supporting nano islands to maximally expose edges grains efficient utilization active sites at reported. The results show such active, aggregation-free greatly enhance 's hydrogen evolution reaction (HER) oxygen (OER) bifunctional electrocatalytic activities. At low overpotential 248 300 mV, porous can generate current density 10 mA cm-2 HER OER, which much better than typical nanosheet morphology. Surprisingly, even exhibit performance commercial RuO2 catalyst OER. This discovery will be another effective strategy promote robust 2H-phase, instead 1T/1T'-phase, achieve endurable HER/OER, expected further replace precious catalysts industry.

Language: Английский

Citations

96
Single‐Atom‐Regulated Heterostructure of Binary Nanosheets to Enable Dendrite‐Free and Kinetics‐Enhanced Li–S Batteries DOI
Chao Zhou, Ming Li, Nantao Hu

et al.

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(33)

Published: June 9, 2022

Abstract Heterostructures show potential as electrodes/functionalized separators for lithium‐sulfur (Li‐S) batteries owing to their remarkable electroactive and structural stability. Yet, the heterostructures with unique structures well regulation of heterointerface electronic structure are still challenging high‐performance Li–S batteries. Herein, Pt single‐atoms (SAs)‐regulated In 2 S 3 /Ti C binary nanosheets (Pt SAs/In ) facilely constructed via an ultrasound‐assisted photochemical reduction strategy dendrite‐free kinetics‐enhanced The as‐designed on separator can stabilize Li plating/striping anodes even at a high current density 5 mA cm −2 . addition, heterostructure suppress polysulfide shuttling exhibit excellent redox electrocatalytic properties lithium polysulfides decomposition. heterostructure‐modified initial discharge capacity 1068.4 mAh g −1 0.5 C, rate performances (719.6 5C), cycling ability. Even sulfur loading 6.4 mg , pouch cell deliver areal 5.54 0.2 C. This work not only provides new route preparing SA‐catalysts, but also sheds lights into engineering heterointerfaces developing

Language: Английский

Citations

84
Single‐Atom Phosphorus Defects Decorated CoP Cocatalyst Boosts Photocatalytic Hydrogen Generation Performance of Cd0.5Zn0.5S by Directed Separating the Photogenerated Carriers DOI
Jian Zhang, Lutao Li, Mingliang Du

et al.

Small, Journal Year: 2023, Volume and Issue: 19(20)

Published: Feb. 17, 2023

Abstract Design and preparation of an efficient nonprecious cocatalysts, with structural features functionality necessary for improving photocatalytic performance semiconductors, remain a formidable challenge until now. Herein, the first time, novel CoP cocatalyst single‐atom phosphorus vacancies defects (CoP‐V p ) is synthesized coupled Cd 0.5 Zn S to build CoP‐V @Cd @CZS) heterojunctions photocatalysts via liquid phase corrosion method following by in suit growth process. The nanohybrids deliver attractive hydrogen production activity 2.05 mmol h −1 30 mg under visible‐light irradiation, which 14.66 times higher than that pristine ZCS samples. As expected, further enhances charge‐separation efficiency ZCS, addition improvement electron transfer efficiency, confirmed ultrafast spectroscopies. Mechanism studies based on density functional theory calculations verify Co atoms adjacent V play key role translation, rotation, transformation electrons H 2 O reduction. This scalable strategy focusing defect engineering provides new insight into designing highly active cocatalysts boost application.

Language: Английский

Citations

72
Atomic‐Level Regulated 2D ReSe2: A Universal Platform Boostin Photocatalysis DOI Creative Commons
Jingrun Ran, Ling Chen, Deyu Wang

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(19)

Published: Feb. 25, 2023

Solar hydrogen (H2 ) generation via photocatalytic water splitting is practically promising, environmentally benign, and sustainably carbon neutral. It important therefore to understand how controllably engineer photocatalysts at the atomic level. In this work, atomic-level engineering of defected ReSe2 nanosheets (NSs) reported significantly boost H2 evolution on various semiconductor including TiO2 , CdS, ZnIn2 S4 C3 N4 . Advanced characterizations, such as atomic-resolution aberration-corrected scanning transmission electron microscopy (AC-STEM), synchrotron-based X-ray absorption near edge structure (XANES), in situ photoelectron spectroscopy (XPS), transient-state surface photovoltage (SPV) spectroscopy, photoluminescence (PL) together with theoretical computations confirm that strongly coupled /TiO2 interface substantial active sites NSs result raised activity This work not only for first time realizes a versatile platform raise activities different photocatalysts, but, more importantly, underscores immense importance synthesis exploration 2D materials energy conversion storage.

Language: Английский

Citations

63
Interfacial engineering of transition metal dichalcogenide/carbon heterostructures for electrochemical energy applications DOI
Biao Chen, Simi Sui, Fang He

et al.

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(22), P. 7802 - 7847

Published: Jan. 1, 2023

This review provides a fundamental understanding of three types interfacial engineering in TMDC/C heterostructures and guidance for designing electrochemical energy applications.

Language: Английский

Citations

63
Emerging Xene‐Based Single‐Atom Catalysts: Theory, Synthesis, and Catalytic Applications DOI
Mengke Wang, Yi Hu,

Junmei Pu

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(3)

Published: June 17, 2023

Abstract In recent years, the emergence of novel 2D monoelemental materials (Xenes), e.g., graphdiyne, borophene, phosphorene, antimonene, bismuthene, and stanene, has exhibited unprecedented potentials for their versatile applications as well addressing new discoveries in fundamental science. Owing to unique physicochemical, optical, electronic properties, emerging Xenes have been regarded promising candidates community single‐atom catalysts (SACs) active sites or support matrixes significant improvement intrinsic activity selectivity. order comprehensively understand relationships between structure property Xene‐based SACs, this review represents a comprehensive summary from theoretical predictions experimental investigations. Firstly, calculations regarding both anchoring on doping/substituting heteroatoms at are briefly summarized. Secondly, controlled synthesis precise characterization presented SACs. Finally, current challenges future opportunities development SACs highlighted.

Language: Английский

Citations

62