Chemical Communications, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
A nanoflower-like MoO 2 –Rh electrocatalyst exhibits a 3.5-fold higher mass activity in the hydrazine oxidation reaction compared with Rh, attributed to hydrogen spillover, acting as pump deplete from Rh active site.
Язык: Английский
Chemical Communications, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
FeCoNiIrPtPd/NCNT exhibits 3.4- and 1.6-fold higher levels of mass activity than does commercial Pt/C in the hydrogen evolution reaction (HER) ethanol oxidation (EOR), respectively.
Язык: Английский
Процитировано
1
Journal of Colloid and Interface Science, Год журнала: 2024, Номер 672, С. 170 - 178
Опубликована: Июнь 1, 2024
Язык: Английский
Процитировано
9
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Дек. 4, 2024
Abstract High‐performance bifunctional electrocatalyst for oxygen evolution reaction (OER) and reduction (ORR) is the keystone industrialization of rechargeable zinc‐air battery (ZAB). In this work, modulation in spin state Fe single atom on nitrogen doped carbon (Fe 1 ‐NC) devised by Co 3 O 4 (Co @Fe ‐NC), a mediate recorded. Besides, d band center downshifted associated with increment e g filling revealing weakened interaction OH * moiety, resulting boosted ORR performance. The kinetic current density ‐NC 2.0‐ 5.6 times higher than commercial Pt/C, respectively. Moreover, high found contributing to accelerated surface reconstruction witnessed operando Raman electrochemical impedance spectroscopies. A robust OER activity overpotential 352 mV at 50 mA cm −2 achieved, decreased 18 60 comparison @NC IrO 2 . reveals balanced adsorption species its deprotonation leading stability. ZAB performance 193.2 mW maintains 200 h. Furthermore, all‐solid‐state shows promising 163.1
Язык: Английский
Процитировано
8
Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 361, С. 124608 - 124608
Опубликована: Сен. 16, 2024
Язык: Английский
Процитировано
7
Energy Materials, Год журнала: 2025, Номер 5(3)
Опубликована: Янв. 15, 2025
The lattice oxygen mechanism (LOM) plays a critical role in the acidic evolution reaction (OER) as it provides more efficient catalytic pathway compared to conventional adsorption (AEM). LOM effectively lowers energy threshold of and accelerates rate by exciting atoms catalyst directly participate OER process. In recent years, with increase in-depth understanding LOM, researchers have developed variety iridium (Ir) ruthenium (Ru)-based catalysts, well non-precious metal oxide optimized their performance through different strategies. However, still faces many challenges practical applications, including long-term stability precise modulation active sites, application efficiency real electrolysis systems. Here, we review OER, analyze its difference traditional AEM new (OPM) mechanism, discuss experimental theoretical validation methods pathway, prospect future development electrocatalyst design conversion, aiming provide fresh perspectives strategies for solving current challenges.
Язык: Английский
Процитировано
1
Small Methods, Год журнала: 2025, Номер unknown
Опубликована: Фев. 21, 2025
Utilizing affordable bifunctional catalysts per strong ORR/OER (oxygen reduction and evolution reactions) ability superior zinc-air battery performance is yet difficult due to the diverse mechanisms of ORR/OER. This work uses CoNi-MOF (metal-organic framework) as a self-template yield CrS doped CoNi/C catalyst. Comparable Pt/C IrO2 commercial catalysts, CrS@CoNi/C catalyst exhibits improved electrocatalytic activity toward OER ORR its linked pellet architecture intact metal sulfide@carbon structure. The has most intriguing performance, with significantly lower potential an exceptionally extended cycle duration (E1/2 = 0.72 V η10 260 mV). CrS@CoNi/C-based aqueous shows long-term charge-discharge stability (more than 100h/600 cycles) together significant specific capacity (789.7 mAh g-1 Zn) power density (132.2 mW cm-2). Most significantly, after stability, recharged alkaline been employed exhibit less structural deformation for cathode more zincate ion production anode side electrodes, which through TEM analysis.
Язык: Английский
Процитировано
1
Journal of Colloid and Interface Science, Год журнала: 2024, Номер 677, С. 140 - 150
Опубликована: Авг. 10, 2024
Язык: Английский
Процитировано
6
SusMat, Год журнала: 2024, Номер 4(5)
Опубликована: Авг. 21, 2024
Abstract The utilization of single atoms (SAs) as trifunctional electrocatalyst for nitrogen reduction, oxygen and evolution reactions (NRR, ORR, OER) is still a formidable challenge. Herein, we devise one‐pot synthesized palladium SAs stabilized on nitrogen‐doped carbon SA (Pd‐SA/NC) efficient NRR, OER. Pd‐SA/NC performs robust catalytic activity toward NRR with faradaic efficiency 22.5% at −0.25 V versus reversible hydrogen electrode (RHE), the relative Pd enhanced by 17‐fold than Pd‐NP/NC. In addition, half‐wave potential reaches 0.876 RHE, amounting to 58‐time higher mass commercial Pt/C. Moreover, overpotential 10 mA cm −2 low 287 mV Pd‐SA/NC, outperforming IrO 2 360 times in turnover frequency 1.6 RHE. Accordingly, assembled rechargeable zinc‐air battery (ZAB) achieves maximum power density 170 mW , boosted 2.3 Pt/C–IrO . Two constructed ZABs efficiently NRR‐OER system electrochemically generate ammonia implying its superior trifunctionality.
Язык: Английский
Процитировано
6
Chemical Engineering Journal, Год журнала: 2024, Номер 497, С. 154703 - 154703
Опубликована: Авг. 10, 2024
Язык: Английский
Процитировано
5
Journal of Colloid and Interface Science, Год журнала: 2024, Номер 679, С. 75 - 89
Опубликована: Сен. 28, 2024
Язык: Английский
Процитировано
5