Journal of Alloys and Compounds, Год журнала: 2024, Номер unknown, С. 177834 - 177834
Опубликована: Ноя. 1, 2024
Язык: Английский
Journal of Alloys and Compounds, Год журнала: 2024, Номер unknown, С. 177834 - 177834
Опубликована: Ноя. 1, 2024
Язык: Английский
Fuel, Год журнала: 2024, Номер 379, С. 133081 - 133081
Опубликована: Сен. 10, 2024
Язык: Английский
Процитировано
0EcoMat, Год журнала: 2024, Номер 6(10)
Опубликована: Окт. 1, 2024
Abstract Atomically dispersed metal and nitrogen co‐doped carbon (MNC) is a promising oxygen reduction reaction (ORR) catalyst for electrochemical energy storage conversion applications but typically suffers from low durability activity under the acidic conditions of practical polymer electrolyte exchange membrane fuel cells (PEMFCs). Recently, performance MNC nanocomposites ORR has been enhanced by exploiting synergistic coupling effects their constituents (single‐atom sites, nanoclusters, nanoparticles). The unique geometric structures formed diverse sites in these provide optimal electronic efficient pathways, thus resulting high long‐term durability. This work provides an overview as electrocatalysts PEMFC conditions, focusing on enhancement methods highlighting strategies used to prepare electrocatalytically containing no or amounts platinum group metals. Progress development advanced catalysts discussed, pivotal role within explored together with characterization elucidate effects. Finally, challenges prospects developing next‐generation are presented. image
Язык: Английский
Процитировано
0ACS Catalysis, Год журнала: 2024, Номер unknown, С. 17421 - 17433
Опубликована: Ноя. 12, 2024
Constructing multifunctional electrodes with high metal utilization by a one-step synthesis strategy is serious challenge. Herein, Zn-IrP2/FeP dual-functional activity induced trimetallic sites are constructed the "one-step phosphorization". Relevant characterizations and DFT calculations reveal that Ir Fe act as HER HzOR sites, respectively, promoting overall hydrazine splitting (OHzS) at industrial-level current. Specially Zn dopant, an auxiliary active site for Ir–Fe dual-active optimizes physical structure, electronic configuration, d-band center, adsorption intermediate capabilities of Zn-IrP2/FeP/IF electrode from multiple perspectives. As expected, only requires 223.0 382.0 mV to drive industrial-grade current density 1 A cm–2 HzOR, respectively. Notably, voltage OHzS reach 500 mA 1.38 V lower than OWS. In summary, exhibit synergetic electrocatalytic functions synergistically maximize efficiency. Moreover, multiactive mechanism dopant innovatively proposed in this work. This presents valuable idea designing multimetal catalysts efficiency in-depth investigation catalytic mechanisms.
Язык: Английский
Процитировано
0Journal of Alloys and Compounds, Год журнала: 2024, Номер unknown, С. 177834 - 177834
Опубликована: Ноя. 1, 2024
Язык: Английский
Процитировано
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