Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 357, P. 124324 - 124324
Published: June 21, 2024
Language: Английский
Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 503, P. 215639 - 215639
Published: Jan. 8, 2024
Language: Английский
Citations
77
Small, Journal Year: 2023, Volume and Issue: 19(45)
Published: July 11, 2023
Abstract Water splitting is a promising technique in the sustainable “green hydrogen” generation to meet energy demands of modern society. Its industrial application heavily dependent on development novel catalysts with high performance and low cost for hydrogen evolution reaction (HER). As typical non‐precious metal, cobalt‐based have gained tremendous attention recent years shown great prospect commercialization. However, complexity composition structure newly‐developed Co‐based make it urgent comprehensively retrospect summarize their advance design strategies. Hence, this review, mechanism HER first introduced possible role Co component during electrocatalysis discussed. Then, various strategies that could effectively enhance intrinsic activity are summarized, including surface vacancy engineering, heteroatom doping, phase facet regulation, heterostructure construction, support effect. The progress advanced electrocatalysts discussed, emphasizing above can significantly improve by regulating electronic optimizing binding crucial intermediates. At last, prospects challenges according viewpoint from fundamental explorations applications.
Language: Английский
Citations
50
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(16)
Published: Feb. 14, 2024
Abstract The alkaline water electrolyzer (AWE) is the earliest and most mature water‐splitting technology. However, conventional Raney Ni electrocatalysts dominantly used in AWEs are struggling to meet current demands for higher energy efficiency cost‐effectiveness green hydrogen production. Although many promising electrocatalytic materials have been developed using facile preparation methods laboratory, they not received much attention commercial AWE applications. It due academic negligence on specific operational conditions, critical performance metrics, material costs associated with industrial AWEs, as well disregarding impact of large‐scale electrode manufacturing processes catalytic performance. Therefore, a timely review bridge laboratory focus requirements essential guide future development electrocatalysts. Here, starting from differences operating testing conditions between systems, gaps equipment, evaluation methods, principles electrodes outlined. To narrow these gaps, some efforts advancing industrially relevant highlighted personal perspectives opportunities, research focus, challenges this field provided.
Language: Английский
Citations
44
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: June 25, 2024
Abstract Catalysts play a crucial role in water electrolysis by reducing the energy barriers for hydrogen and oxygen evolution reactions (HER OER). Research aims to enhance intrinsic activities of potential catalysts through material selection, microstructure design, various engineering techniques. However, consumption has often been overlooked due intricate interplay among catalyst microstructure, dimensionality, catalyst–electrolyte–gas dynamics, surface chemistry, electron transport within electrodes, transfer electrode components. Efficient development high‐current‐density applications is essential meet increasing demand green hydrogen. This involves transforming with high into electrodes capable sustaining current densities. review focuses on improvement strategies mass exchange, charge transfer, resistance decrease consumption. It bridge gap between laboratory‐developed, highly efficient industrial regarding structural catalyst‐electrode interplay, outlining roadmap hierarchically structured electrode‐based minimizing loss electrocatalysts splitting.
Language: Английский
Citations
40
Advanced Powder Materials, Journal Year: 2024, Volume and Issue: 3(5), P. 100214 - 100214
Published: June 13, 2024
Water electrolysis via alkaline hydrogen evolution reaction (HER) is a promising approach for large-scale production of high-purity at low cost, utilizing renewable and clean energy. However, the sluggish kinetics derived from high energy barrier water dissociation impedes seriously its practical application. Herein, series hybrid Pt nanoclusters/Ru nanowires (Pt/Ru NWs) catalysts are demonstrated to accelerate HER. And optimized Pt/Ru NWs (10 % wt Pt) exhibits exceptional performance with an ultralow overpotential (24 mV 10 mA cm−2), small Tafel slope (26.3 dec−1), long-term stability, outperforming benchmark commercial Pt/C-JM-20 catalyst. This amazing also occurred in anion-exchange membrane devices, where it delivered cell voltage about 1.9 V 1 A cm−2 outstanding stability (more than 100 h). The calculations have revealed such superior exhibited by stems formed heterointerfaces, which significantly reduce decisive rate step cooperative-action between cluster Ru substance. work provides valuable perspectives designing advanced materials toward HER beyond.
Language: Английский
Citations
27
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(34)
Published: March 12, 2024
Abstract Alkaline water electrolysis is among the most promising technologies to massively produce green hydrogen. Developing highly‐active and durable electrodes catalyze oxygen evolution reaction (OER) hydrogen (HER) of primary importance. Here a facile, room‐temperature synthetic route presented access heazlewoodite phase (Ni, Fe) 3 S 2 nanosheet arrays supported on NiFe foam (NFF), whose production can be easily scaled up meter size per batch operation. The /NFF electrode serve as high‐performance electrocatalyst for both HER OER in alkaline media, remains highly stable over 1000 h at 100 mA cm −2 current densities. When working electrocatalyst, confirmed catalytic that provides high density efficient active sites (e.g., Ni─Ni Ni─Fe bridge sites). During electrochemical testing, nanosheets totally transform into γ ‐(Fe, Ni)OOH OER. As consequence, used integrate an electrolyzer cathode anode, give excellent performance (600 @1.93 V), which better than based commercial Raney Ni electrodes.
Language: Английский
Citations
26
The Innovation, Journal Year: 2025, Volume and Issue: 6(2), P. 100778 - 100778
Published: Jan. 18, 2025
Traditional fossil fuels significantly contribute to energy supply, economic development, and advancements in science technology. However, prolonged extensive use of has resulted increasingly severe environmental pollution. Consequently, it is imperative develop new, clean, pollution-free sources with high density versatility as substitutes for conventional fuels, although this remains a considerable challenge. Simultaneously, addressing water pollution critical concern. The design, optimization functional nanomaterials are pivotal advancing new solutions pollutant remediation. Emerging porous framework materials such metal-organic frameworks (MOFs) covalent organic (COFs), recognized exemplary crystalline materials, exhibit potential applications due their specific surface area, adjustable pore sizes structures, permanent porosity, customizable functionalities. This work provides comprehensive systematic review the MOFs, COFs, derivatives emerging technologies, including oxygen reduction reaction, evolution hydrogen lithium-ion batteries, remediation carbon dioxide reaction management. In addition, strategies performance adjustment structure-effect relationships these explored. Interaction mechanisms summarized based on experimental discussions, theoretical calculations, advanced spectroscopy analyses. challenges, future prospects, opportunities tailoring presented.
Language: Английский
Citations
25
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(45)
Published: Oct. 28, 2024
Abstract High‐current‐density water electrolysis is considered a promising technology for industrial‐scale green hydrogen production, which of significant value to energy decarbonization and numerous sustainable industrial applications. To date, substantial research advancements are achieved in catalyst design laboratory‐based electrolysis. While the designed catalysts demonstrate remarkable performance at low current densities, they suffer from marked deteriorations both activity long‐term stability under industrial‐level high‐current‐density operations. provide timely assessment that helps bridge gap between laboratory‐scale fundamental practical technology, here various commercial electrolyzers first systematically analyzed, then key parameters including work temperature, density, lifetime stacks, cell efficiency, capital cost stacks critically evaluated. In addition, impact high density on electrocatalytic behavior catalysts, intrinsic activity, stability, mass transfer, discussed advance design. Therefore, by covering range critical issues material principles parameters, future directions development highly efficient low‐cost presented procedure screening laboratory‐designed outlined.
Language: Английский
Citations
23
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(32)
Published: May 29, 2024
Abstract Commercial alkaline water electrolysers typically operate at 80 °C to minimize energy consumption. However, NiFe‐based catalysts, considered as one of the most promising candidates for anode, encounter bottleneck high solubility such temperatures. Herein, we discover that dissolution NiFe layered double hydroxides (NiFe‐LDH) during operation not only leads degradation anode itself, but also deactivates cathode splitting, resulting in decay overall electrocatalytic performance. Aiming suppress dissolution, employed oxyanions inhibitors electrolyte. The added phosphates electrolyte inhibit loss NiFe‐LDH active sites 400 mA cm −2 1/3 original amount, thus reducing rate performance by 25‐fold. Furthermore, usage borates, sulfates, and carbonates yields similar results, demonstrating reliability universality site inhibitor, its role elevated electrolysis.
Language: Английский
Citations
22
Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
This review systematically provides various insights into the pH effect on hydrogen electrocatalysis, and thus providing a reference for future development of electrocatalysis based these insights.
Language: Английский
Citations
19