Aggregation-Resistant 3D MXene-Based Architecture as Efficient Bifunctional Electrocatalyst for Overall Water Splitting DOI
Luyang Xiu, Zhiyu Wang, Mengzhou Yu

et al.

ACS Nano, Journal Year: 2018, Volume and Issue: 12(8), P. 8017 - 8028

Published: July 26, 2018

The MXene combining high conductivity, hydrophilic surface, and wide chemical variety has been recognized as a rapidly rising star on the horizon of two-dimensional (2D) material science. However, strong tendency to intersheet aggregate via van der Waals force represents major problem limiting functionalities, processability, performance MXene-based material/devices. We report capillary-forced assembling strategy for processing hierarchical 3D architecture with geometry-based resistance aggregation. Aggregate-resistant properties not only double surface area without loss intrinsic but also render characteristics such kinetics-favorable framework, robustness, excellent processability in both solution solid state. Synergistically coupling electrochemically active phases metal oxide/phosphides, noble metals, or sulfur yields hybrid systems greatly boosted area, charge-transfer kinetics, mass diffusion rate. Specifically, CoP-3D hybrids exhibit electrocatalytic activity toward oxygen hydrogen evolution alkaline electrolyte. As bifunctional electrocatalyst, they superior cell voltage durability combined RuO2/Pt catalysts overall water splitting basic solution, highlighting great promise aggregation-resistant development high-performance electrocatalysts.

Language: Английский

Recent Advances in Electrocatalytic Hydrogen Evolution Using Nanoparticles DOI
Jing Zhu, Liangsheng Hu, Pengxiang Zhao

et al.

Chemical Reviews, Journal Year: 2019, Volume and Issue: 120(2), P. 851 - 918

Published: Oct. 28, 2019

Hydrogen fuel is considered as the cleanest renewable resource and primary alternative to fossil fuels for future energy supply. Sustainable hydrogen generation major prerequisite realize economy. The electrocatalytic evolution reaction (HER), vital step of water electrolysis H2 production, has been subject extensive study over past decades. In this comprehensive review, we first summarize fundamentals HER review recent state-of-the-art advances in low-cost high-performance catalysts based on noble non-noble metals, well metal-free electrocatalysts. We systemically discuss insights into relationship among catalytic activity, morphology, structure, composition, synthetic method. Strategies developing an effective catalyst, including increasing intrinsic activity active sites and/or number sites, are summarized highlighted. Finally, challenges, perspectives, research directions electrocatalysis featured.

Language: Английский

Citations

2442

Cocatalysts for Selective Photoreduction of CO2into Solar Fuels DOI
Xin Li, Jiaguo Yu, Mietek Jaroniec

et al.

Chemical Reviews, Journal Year: 2019, Volume and Issue: 119(6), P. 3962 - 4179

Published: Feb. 14, 2019

Photoreduction of CO2 into sustainable and green solar fuels is generally believed to be an appealing solution simultaneously overcome both environmental problems energy crisis. The low selectivity challenging multi-electron photoreduction reactions makes it one the holy grails in heterogeneous photocatalysis. This Review highlights important roles cocatalysts selective photocatalytic reduction using semiconductor catalysts. A special emphasis this review placed on key role, design considerations modification strategies for photoreduction. Various cocatalysts, such as biomimetic, metal-based, metal-free, multifunctional ones, their are summarized discussed, along with recent advances area. provides useful information highly photo(electro)reduction electroreduction complements existing reviews various photocatalysts.

Language: Английский

Citations

1915

Core–Shell ZIF-8@ZIF-67-Derived CoP Nanoparticle-Embedded N-Doped Carbon Nanotube Hollow Polyhedron for Efficient Overall Water Splitting DOI
Yuan Pan,

Kaian Sun,

Shoujie Liu

et al.

Journal of the American Chemical Society, Journal Year: 2018, Volume and Issue: 140(7), P. 2610 - 2618

Published: Jan. 17, 2018

The construction of highly active and stable non-noble-metal electrocatalysts for hydrogen oxygen evolution reactions is a major challenge overall water splitting. Herein, we report novel hybrid nanostructure with CoP nanoparticles (NPs) embedded in N-doped carbon nanotube hollow polyhedron (NCNHP) through pyrolysis–oxidation–phosphidation strategy derived from core–shell ZIF-8@ZIF-67. Benefiting the synergistic effects between NPs NCNHP, CoP/NCNHP exhibited outstanding bifunctional electrocatalytic performances. When was employed as both anode cathode splitting, potential low 1.64 V needed to achieve current density 10 mA·cm–2, it still superior activity after continuously working 36 h nearly negligible decay potential. Density functional theory calculations indicated that electron transfer NCNHP could increase electronic states Co d-orbital around Fermi level, which binding strength H therefore improve performance. strong stability attributed high oxidation resistance surface protected by NCNHP.

Language: Английский

Citations

1766

Clean and Affordable Hydrogen Fuel from Alkaline Water Splitting: Past, Recent Progress, and Future Prospects DOI
Ziyou Yu, Yu Duan, Xingyu Feng

et al.

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(31)

Published: June 12, 2021

Abstract Hydrogen economy has emerged as a very promising alternative to the current hydrocarbon economy, which involves process of harvesting renewable energy split water into hydrogen and oxygen then further utilization clean fuel. The production by electrolysis is an essential prerequisite with zero carbon emission. Among various technologies, alkaline splitting been commercialized for more than 100 years, representing most mature economic technology. Here, historic development overviewed, several critical electrochemical parameters are discussed. After that, advanced nonprecious metal electrocatalysts that recently negotiating evolution reaction (OER) (HER) discussed, including transition oxides, (oxy)hydroxides, chalcogenides, phosphides, nitrides OER, well alloys, carbides HER. In this section, particular attention paid catalyst synthesis, activity stability challenges, performance improvement, industry‐relevant developments. Some recent works about scaled‐up novel electrode designs, seawater also spotlighted. Finally, outlook on future challenges opportunities offered, potential directions speculated.

Language: Английский

Citations

1403

Electrocatalysts for Hydrogen Evolution in Alkaline Electrolytes: Mechanisms, Challenges, and Prospective Solutions DOI Creative Commons
Nasir Mahmood,

Yunduo Yao,

Jingwen Zhang

et al.

Advanced Science, Journal Year: 2017, Volume and Issue: 5(2)

Published: Nov. 10, 2017

Hydrogen evolution reaction (HER) in alkaline medium is currently a point of focus for sustainable development hydrogen as an alternative clean fuel various energy systems, but suffers from sluggish kinetics due to additional water dissociation step. So, the state-of-the-art catalysts performing well acidic media lose considerable catalytic performance media. This review summarizes recent developments overcome issues HER, synthesis materials with modified morphologies, and electronic structures tune active sites their applications efficient HER. It first explains fundamentals electrochemistry HER then outlines requirements stable catalyst medium. The challenges limitation electrocatalysts along prospective solutions are highlighted. further describes methods advanced nanostructures based on carbon, noble, inexpensive metals heterogeneous structures. These provide some ideal systems analyzing role structure synergy catalysis. At end, it provides concluding remarks future perspectives that can be helpful tuning active-sites improved electrochemical efficiencies future.

Language: Английский

Citations

1318

Metal–organic framework-derived porous materials for catalysis DOI Creative Commons
Yuzhen Chen, Rui Zhang, Long Jiao

et al.

Coordination Chemistry Reviews, Journal Year: 2018, Volume and Issue: 362, P. 1 - 23

Published: Feb. 23, 2018

Language: Английский

Citations

900

Two-Dimensional Metal Nanomaterials: Synthesis, Properties, and Applications DOI
Ye Chen, Zhanxi Fan, Zhicheng Zhang

et al.

Chemical Reviews, Journal Year: 2018, Volume and Issue: 118(13), P. 6409 - 6455

Published: June 21, 2018

As one unique group of two-dimensional (2D) nanomaterials, 2D metal nanomaterials have drawn increasing attention owing to their intriguing physiochemical properties and broad range promising applications. In this Review, we briefly introduce the general synthetic strategies applied followed by describing in detail various methods classified two categories, i.e. bottom-up top-down methods. After introducing physical chemical potential applications catalysis, surface enhanced Raman scattering, sensing, bioimaging, solar cells, photothermal therapy are discussed detail. Finally, challenges opportunities research area proposed.

Language: Английский

Citations

856

Support and Interface Effects in Water‐Splitting Electrocatalysts DOI
Jian Zhang, Qiuyu Zhang, Xinliang Feng

et al.

Advanced Materials, Journal Year: 2019, Volume and Issue: 31(31)

Published: March 6, 2019

Water-splitting electrolyzers that can convert electricity into storable hydrogen are a fascinating and scalable energy conversion technology for the utilization of renewable energies. To speed up sluggish oxygen evolution reactions (HER OER), electrocatalysts essential reducing their kinetic barriers eventually improving efficiency. As efficient strategies modulating binding ability water-splitting intermediates on electrocatalyst surface, support effect interface drawing growing attention. Herein, some recent research progress effects in HER, OER, overall is highlighted. Specifically, correlation between electronic interaction constituent components electrocatalytic performance profoundly discussed, with aim advancing development highly electrocatalysts, which may replace noble-metal-based bring practically widespread reality.

Language: Английский

Citations

778

Covalent organic frameworks (COFs) for electrochemical applications DOI Creative Commons
Xiaojia Zhao, Pradip Pachfule, Arne Thomas

et al.

Chemical Society Reviews, Journal Year: 2021, Volume and Issue: 50(12), P. 6871 - 6913

Published: Jan. 1, 2021

This review article summarizes the design principles and strategies for synthesis of functional COFs, with a special focus on their potential electrochemical applications.

Language: Английский

Citations

766

Strategies for the Stabilization of Zn Metal Anodes for Zn‐Ion Batteries DOI Creative Commons
Zhehan Yi, Guoyuan Chen, Feng Hou

et al.

Advanced Energy Materials, Journal Year: 2020, Volume and Issue: 11(1)

Published: Nov. 16, 2020

Abstract Zinc‐ion batteries (ZIBs) are regarded as a promising candidate for next‐generation energy storage systems due to their high safety, resource availability, and environmental friendliness. Nevertheless, the instability of Zn metal anode has impeded ZIBs from being reliably deployed in proposed applications. Specifically, dendrite formation hydrogen evolution reaction (HER) on surface significantly compromise Coulombic efficiency cycling stability ZIBs. In recent years, increasing efforts have been devoted overcoming these obstacles by electrode structure design, interface modification, electrolyte/separator optimization. To achieve an insightful comprehensive understanding strategies, it is worth analyzing categorizing them according intrinsic mechanisms. Considering this, overview anodic stabilization strategies provided. First, fundamentals introduced, associated mechanisms presented. Furthermore, HER suppression categorized, discussed, analyzed detail. Last, suggestions deployment research, industrialization, commercialization aspects proposed. It expected that this Review will shed light roadmap exploration novel anodes

Language: Английский

Citations

760