ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(11), P. 4865 - 4872
Published: Sept. 27, 2024
Language: Английский
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Feb. 16, 2024
Abstract Exploring an active and cost-effective electrocatalyst alternative to carbon-supported platinum nanoparticles for alkaline hydrogen evolution reaction (HER) have remained elusive date. Here, we report a catalyst based on single atoms (SAs) doped into the hetero-interfaced Ru/RuO 2 support (referred as Pt-Ru/RuO ), which features low HER overpotential, excellent stability distinctly enhanced cost-based activity compared commercial Pt/C Ru/C in 1 M KOH. Advanced physico-chemical characterizations disclose that sluggish water dissociation is accelerated by RuO while Pt SAs metallic Ru facilitate subsequent H* combination. Theoretical calculations correlate with experimental findings. Furthermore, only requires 1.90 V reach A cm −2 delivers high price anion exchange membrane electrolyzer, outperforming benchmark Pt/C. This research offers feasible guidance developing noble metal-based catalysts performance cost toward practical H production.
Language: Английский
Citations
147
Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(22)
Published: April 28, 2023
Abstract Efficient and stable low‐cost catalysts are seriously lacking for industrial water electrolysis at large‐current‐density. To meet industrial‐scale hydrogen production, fully utilized active sites by a rational structure design is an attractive route. Herein, dynamic microstructure manipulation of bimetallic phosphide NiCoP conducted. Among different microstructures NiCoP, as‐obtained NiCoP‐120 hydrothermal temperature 120 °C, shows special multiscale hierarchical from 3D‐nickel foam substrates, 2D‐nanosheets to 1D‐nanoneedles, which conducive efficient utilization rapid gas release, thus manifesting outstanding electrocatalytic activities stability as required industry. reach current density 10 1000 mA cm −2 the evolution reaction (HER), requires ultra‐low overpotentials 56 247 mV, respectively. Particularly, bifunctional catalyst, it only needs 1.981 V drive 1 A overall splitting can maintain output 600 h, superior almost all reported non‐noble metal catalysts. Moreover, its application prospect in integrated green energy‐to‐hydrogen systems, including sunlight, wind, thermal, lithium cells, well demonstrated. This work provides guiding strategy establishment externally driven water‐splitting production system.
Language: Английский
Citations
127
Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 338, P. 123015 - 123015
Published: June 17, 2023
Language: Английский
Citations
50
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(28)
Published: March 11, 2024
Abstract Electrochemical water splitting to produce green hydrogen offers a promising technology for renewable energy conversion and storage, as well realizing carbon neutrality. The efficiency, stability, cost of electrocatalysts toward evolution reaction (HER) electrocatalytic overall (EOWS) at large current densities are essential practical application. In this review, the key factors that determine catalytic performance summarized from angel thermodynamic kinetic correlation. corresponding design strategies presented. electronic structure density active sites affect adsorption/desorption intermediates considered aspects, while charge transfer mass transport capabilities closely associated with electrode resistance intermediate diffusion assigned effects. Recent development bifunctional integrated EOWS is also discussed in detail. Finally, perspective direction on under proposed. This comprehensive overview will offer profound insights guidance continued advancement field.
Language: Английский
Citations
35
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(46)
Published: July 22, 2024
Transition metal oxides (TMOs) are recognized as high-efficiency electrocatalyst systems for restraining the shuttle effect in lithium-sulfur (Li-S) batteries, owing to their robust adsorption capabilities polysulfides. However, sluggish catalytic conversion of Li
Language: Английский
Citations
18
Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 469, P. 143879 - 143879
Published: June 2, 2023
Language: Английский
Citations
42
Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(37), P. 19812 - 19844
Published: Jan. 1, 2023
Recent advances and perspectives in utilizing various supports to maximize the HER performance of Pt species are reviewed, along with strategies for tailoring future challenges opportunities regulating supports.
Language: Английский
Citations
39
Materials Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 7(23), P. 6035 - 6060
Published: Jan. 1, 2023
Challenges and design strategies of electrocatalysts for high-current–density water electrolysis.
Language: Английский
Citations
37
Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(14)
Published: Dec. 24, 2023
Abstract Electrocatalysts play a crucial role in hydrogen production via water splitting, yet their effectiveness is hampered by the bubble effect, particularly under high‐current‐density conditions. Herein, nickel foam with mountain‐shaped nanostripes (NFMN) developed as universal substrate for electrocatalysts to remove gas bubbles efficiently, ensuring high‐performance splitting. The NFMN fabricated through facet engineering of (NF) thiocyanate‐guided acid etching. Specifically, when immersed into an acidic thiocyanate solution, (220) plane NF preferentially adsorbed SCN − , protecting it, while (111) and (200) facets remain exposed are selectively etched acid. As etching proceeds parallelly direction, obtained. confer benefits superaerophobicity local circulation, allowing efficiently release bubbles. proof‐of‐concept application, employed novel support FeOOH anode Ni 2 P cathode prototype electrolyzer, which exhibits low cell voltage 1.847 V at large current density 500 mA cm −2 high stability. This work opens up new opportunities construct efficient substrates splitting beyond.
Language: Английский
Citations
33
ACS Energy Letters, Journal Year: 2023, Volume and Issue: 8(9), P. 3868 - 3875
Published: Aug. 25, 2023
Hydrogen spillover is a well-recognized phenomenon in the electrocatalytic hydrogen evolution reaction (HER), and rate highly dependent on metal–support interfaces. However, for commonly used platinum (Pt) HER, rational selection of ideal support intensifying remains elusive. Herein, three-dimensional single-crystalline molybdenum oxide (s-MoO3) proposed as an active Pt sites. In contrast to these traditional materials, resultant s-MoO3 manifests interconnected branch-like morphology, zigzag-type stepped edge, porous surface, partially reductive surface. By virtue morphological structural advantages branches, subsequent loading particles could induce intensified accompanied by formation H(O)xMoO3 intermediate thus enhanced activity HER. It expected that this work will enrich current knowledge mechanisms offer effective intensification strategy support-type catalysts.
Language: Английский
Citations
29