Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: unknown, P. 124990 - 124990
Published: Dec. 1, 2024
Language: Английский
Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(27), P. 12572 - 12581
Published: June 26, 2024
The kinetics of electrocatalytic reactions are closely related to the number and intrinsic activity active sites. Open sites offer easy access substrate allow for efficient desorption diffusion reaction products without significant hindrance. Metal-organic frameworks (MOFs) with open show great potential in this context. To increase density sites, trimesic acid was utilized as a ligand anchor more Ni situ construct nickel foam-loaded Ni-based MOF electrocatalyst (Ni-TMA-MOF/NF). When tested an benzyl alcohol oxidation, Ni-TMA-MOF/NF exhibited lower overpotential superior durability compared terephthalic (Ni-PTA-MOF/NF) Ni(OH)
Language: Английский
Citations
5
Green Carbon, Journal Year: 2024, Volume and Issue: unknown
Published: July 1, 2024
Proton exchange membrane water electrolysis (PEMWE) involves the oxygen evolution reaction (OER) at anode to produce O2 and hydrogen (HER) cathode H2. Although is desired product of PEMWE, main challenge lies on side, as OER kinetically more sluggish thus requires a efficient catalyst higher overpotential (>1.3 V vs. reversible electrode, RHE) than HER (>0 RHE). Recently, Nakamura et al. developed new atomically dispersed hexavalent iridium oxide (IrVI-ado) with much lower Ir loading specific activity traditional IrO2. This breakthrough offers hope for advancing PEMWE technology.
Language: Английский
Citations
4
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 27, 2024
Abstract Asymmetric coordination has emerged as a promising approach to enhance the oxygen evolution reaction (OER) activity, yet achieving controlled synthesis of asymmetric structures comprehensively understand structure‐activity relationship remains challenging. In this study, facile and effective symmetry‐breaking strategy is reported for tailoring MO 5 S 1 ‐type metal–organic frameworks (MOFs) catalyst, establishing correlation between sulfur (S)‐mediated electron rearrangement adsorption/desorption dynamics oxygen‐related intermediates in OER. Experimental theoretical calculations reveal that well‐designed structure can effectively lower d‐band center, optimizing adsorption behavior OH * significantly decreasing energy barrier rate‐determining step (OH → O ) with enhanced O–H bond cleavage process. The S‐NiFe‐MOF/CFP catalyst demonstrates remarkable OER performance an alkaline electrolyte environment. More importantly, self‐assembled anion exchange membrane water electrolysis cell showcases low voltage 1.84 V deliver current density A cm −2 , maintaining long‐term stability over 100 h. This study unveils precise employing S, highlighting critical role manipulating redistribution through promote catalytic activity develop advanced MOF‐based catalysts.
Language: Английский
Citations
4
Green Carbon, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 1, 2024
Language: Английский
Citations
4
Published: Jan. 1, 2025
Language: Английский
Citations
0
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159472 - 159472
Published: Jan. 10, 2025
Language: Английский
Citations
0
Microstructures, Journal Year: 2025, Volume and Issue: 5(2)
Published: Feb. 25, 2025
Noble-metal single-atom catalysts (SACs) have arisen as a research hotspot in heterogeneous catalysis resulting from superior noble-metal-atom utilization, well-defined catalytic centers, and tunable microenvironments. Recently, the advent rise of noble-metal SACs supported by layered double hydroxides (LDHs) injected fresh vitality vigor into this field. LDHs offer distinct advantages support SACs, such an ordered adjustable crystal structure, two-dimensional structure possessing large specific surface area, facile synthesis with cost-effectiveness, strong co-catalytic metal-support interaction between single atoms. In review, we classified comprehensively outlined current strategies LDHs, conducted in-depth analysis mechanisms underlying each strategy. Subsequently, considering critical role microenvironment affecting their catalytic-related properties, discussed regulation LDH-supported SACs. We also provide introduction to characterization techniques for singe-atom sites Furthermore, diverse applications various fields roles played atoms relevant processes. Finally, delineated challenges future directions development
Language: Английский
Citations
0
Ionics, Journal Year: 2025, Volume and Issue: unknown
Published: March 13, 2025
Language: Английский
Citations
0
International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 123, P. 290 - 297
Published: April 1, 2025
Language: Английский
Citations
0
Catalysts, Journal Year: 2025, Volume and Issue: 15(4), P. 384 - 384
Published: April 16, 2025
Significant research has focused on cost–effective, highly active, and exceptionally stable non–noble metal electrocatalysts (NNMEs) to boost the performance of oxygen reduction reaction (ORR). Of note, development design synthesis Fe–N–C is essential but remains challenging. Herein, Fe N co–doped porous carbon material with a yolk–shell (YS) structure, termed SA–H2TPyP@PDA–Fe (900), was fabricated by self–assembly metal–free porphyrin as yolk polymerization dopamine shell an addition iron salts, followed high–temperature pyrolysis acid–leaching. As result, active sites, like FeN4 N–doped C, within rich YS structures, play important role for ORR in alkaline media. The (900) electrocatalyst shows positive performances than those SA–H2TPyP SA–H2TPyP@PDA indicating dominating function structure decorated Fe–based species. This efficient route template–free–induced preparation discovers NNMEs ORR.
Language: Английский
Citations
0