Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 512, P. 162739 - 162739
Published: April 17, 2025
Language: Английский
Small, Journal Year: 2024, Volume and Issue: 20(33)
Published: April 9, 2024
Constructing multiheteroatom coordination structure in carbonaceous substrates demonstrates an effective method to accelerate the oxygen reduction reaction (ORR) of supported single-atom catalyst. Herein, novel etching route assisted by potassium thiocyanate (KCNS) is developed convert metal-organic framework 2D defect-rich porous N,S-co-doped carbon nanosheets for anchoring atomically dispersed iron sites as high-performance ORR catalysts (Fe-SACs). The well-designed KCNS-assisted can generate spatial confinement template direct nanosheet formation, condition form structure, and additional sulfur atoms coordinate species. Spectral microscopy analysis reveals that element Fe-SACs highly isolated on anchored nitrogen unsymmetrical Fe-S
Language: Английский
Citations
20
ACS Nano, Journal Year: 2024, Volume and Issue: 18(33), P. 21651 - 21684
Published: Aug. 12, 2024
In order to facilitate electrochemical oxygen reactions in electrically rechargeable zinc-air batteries (ZABs), there is a need develop innovative approaches for efficient electrocatalysts. Due their reliability, high energy density, material abundance, and ecofriendliness, ZABs hold promise as next-generation storage conversion devices. However, the large-scale application of currently hindered by slow kinetics reduction reaction (ORR) evolution (OER). development heterostructure-based electrocatalysts has potential surpass limitations imposed intrinsic properties single material. This Account begins with an explanation configurations fundamentals electrochemistry air electrode. Then, we summarize recent progress respect variety heterostructures that exploit bifunctional electrocatalytic overview impact on ZAB performance. The range heterointerfacial engineering strategies improving ORR/OER performance includes tailoring surface chemistry, dimensionality catalysts, interfacial charge transfer, mass transport, morphology. We highlight multicomponent design take these features into account create advanced highly active catalysts. Finally, discuss challenges future perspectives this important topic aim enhance activity batteries.
Language: Английский
Citations
16
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 30, 2024
Abstract Oxygen electrocatalysis, as the pivotal circle of many green energy technologies, sets off a worldwide research boom in full swing, while its large kinetic obstacles require remarkable catalysts to break through. Here, based on summarizing reaction mechanisms and situ characterizations, structure–activity relationships oxygen electrocatalysts are emphatically overviewed, including influence geometric morphology chemical structures electrocatalytic performances. Subsequently, experimental/theoretical is combined with device applications comprehensively summarize cutting‐edge according various material categories. Finally, future challenges forecasted from perspective catalyst development applications, favoring researchers promote industrialization electrocatalysis at an early date.
Language: Английский
Citations
16
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 11, 2025
Abstract Exploiting robust and high‐efficiency electrocatalysts for sluggish oxygen reduction reaction (ORR) is essential proton exchange membrane fuel cells (PEMFCs) toward long‐term operation practical applications, yet remains challenging. Herein, the ordered PtCo intermetallic reported with a Pt‐rich shell loaded on highly graphitized carbon carrier (O‐PtCo@GCoNC) prepared by an impregnation annealing strategy. Systematic X‐ray spectroscopic, operando electrochemical techniques theoretical calculations reveal that thanks to synergistic interaction of core–shell structure tailor‐made Pt electronic configuration carbon, O‐PtCo@GCoNC exhibits significantly enhanced activity stability ORR. Crucially, delivers much‐enhanced mass 0.83 A mg −1 at 0.9 V versus reversible hydrogen electrode (RHE) in 0.1 m HClO 4 , which only drops 26.5% after 70 000 cycles (0.6–1.0 vs RHE), 10.8% 10 (1.0–1.5 apparently overmatching Pt/C (0.19 73.7%, 63.1%). Moreover, employed as cathode catalyst H 2 /air PEMFC achieves superb peak power density (1.04 W cm −2 2.06 ), outperforming (0.86 1.79 ). The cell voltage loss 0.8 28 mV 30 cycles, outstripping United States Department Energy 2025 target.
Language: Английский
Citations
2
Chemical Science, Journal Year: 2024, Volume and Issue: 15(12), P. 4349 - 4357
Published: Jan. 1, 2024
Novel freestanding M-PtBiMo IMSs were achieved via a simple and effective one-step wet chemical method. The as highly efficient anode electrocatalysts boosted the activity stability toward EGOR actual DEGFCs.
Language: Английский
Citations
15
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159958 - 159958
Published: Jan. 1, 2025
Language: Английский
Citations
1
Materials Science and Engineering R Reports, Journal Year: 2025, Volume and Issue: 163, P. 100942 - 100942
Published: Feb. 1, 2025
Language: Английский
Citations
1
Energy storage materials, Journal Year: 2025, Volume and Issue: 75, P. 104109 - 104109
Published: Feb. 1, 2025
Language: Английский
Citations
1
Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 89, P. 111862 - 111862
Published: April 25, 2024
Language: Английский
Citations
7
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 495, P. 153670 - 153670
Published: July 2, 2024
Language: Английский
Citations
7