Catalysis Science & Technology, Год журнала: 2023, Номер 13(16), С. 4693 - 4700
Опубликована: Янв. 1, 2023
The OER active phase of NiOx electrocatalysts, i.e. NiOOH, decomposes outside operating potential to Ni(OH) 2 requiring operando characterization approaches.
Язык: Английский
Energy & environment materials, Год журнала: 2022, Номер 6(5)
Опубликована: Май 28, 2022
Electrochemical water splitting represents one of the most promising technologies to produce green hydrogen, which can help realize goal achieving carbon neutrality. While substantial efforts on a laboratory scale have been made for understanding fundamental catalysis and developing high‐performance electrocatalysts two half‐reactions involved in electrocatalysis, much less attention has paid doing relevant research larger scale. For example, few such researches done an industrial Herein, we review very recent endeavors bridge gaps between applications electrolysis. We begin by introducing fundamentals electrochemical then present comparisons testing protocol, figure merit, catalyst interest, manufacturing cost industry‐based water‐electrolysis research. Special is tracking surface reconstruction process identifying real catalytic species under different conditions, highlight significant distinctions corresponding mechanisms. Advances designs industry‐relevant electrolysis are also summarized, reveal progress moving practical forward accelerating synergies material science engineering. Perspectives challenges electrocatalyst design strategies proposed finally further lab‐scale large‐scale electrocatalysis applications.
Язык: Английский
Процитировано
328
EnergyChem, Год журнала: 2022, Номер 4(5), С. 100087 - 100087
Опубликована: Авг. 4, 2022
Язык: Английский
Процитировано
184
Advanced Energy Materials, Год журнала: 2022, Номер 12(35)
Опубликована: Июль 27, 2022
Abstract Mixed transition‐metals (TM) based catalysts have shown huge promise for water splitting. Conventional synthesis of nanomaterials is strongly constrained by room‐temperature equilibria and Ostwald ripening. Ultra‐fast temperature cycling enables the metastable metallic phases high entropy alloy nanoparticles, which later transform to oxide/hydroxide nanoparticles upon use in aqueous electrolytes. Herein, an situ non‐noble metal oxide (HEO) on carbon fibers rapid Joule heating quenching reported. Different compositions ternary senary (FeNiCoCrMnV) HEO show higher activity towards catalyzing oxygen evolution reaction (OER) compared a noble IrO 2 catalyst. The synthesized also two orders magnitude stability than , due stronger carbide‐mediated intimacy with substrate, activated through OER process. Alloying elements Cr, Mn V affect promoting different oxidation states catalytically active TM (Fe, Ni Co). Dissolution less stable (Mn, Cr) leads enhancements activity. Dynamic structural chemical perturbations activate under conditions, leading enlargement ECSA forming mixed single atom ultra‐fine oxyhydroxide HEOs.
Язык: Английский
Процитировано
136
Nano Research, Год журнала: 2022, Номер 16(2), С. 1913 - 1966
Опубликована: Окт. 2, 2022
Язык: Английский
Процитировано
119
Advanced Science, Год журнала: 2023, Номер 10(32)
Опубликована: Окт. 9, 2023
The oxygen evolution reaction (OER) activity of transition metal (TM)-based (oxy)hydroxide is dominated by the number and nature surface active sites, which are generally considered to be TM atoms occupying less than half with most being inactive atoms. Herein, based on an in situ competing growth strategy bimetallic ions OH- ions, a facile one-step method proposed modulate defects NiFe-layered double hydroxide (NiFe-LDH)/FeOOH heterostructure, may trigger single lattice mechanism (sLOM). Interestingly, only varying addition H2 O2 , one can simultaneously regulate concentration defects, valence ratio components. proper promote synergy between adsorbate (AEM, redox chemistry) sLOM (oxygen OER NiFe-based (oxy)hydroxide, practically maximizing use as sites. Consequently, optimal NiFe-LDH/FeOOH heterostructure outperforms reported non-noble catalysts electrocatalytic activity, overpotential 177 mV deliver current density 20 mA cm-2 high stability. novel exemplifies versatile approach designing highly TM-LDH-based electrocatalysts for energy environmental applications.
Язык: Английский
Процитировано
117
Journal of Materials Chemistry A, Год журнала: 2023, Номер 11(11), С. 5476 - 5494
Опубликована: Янв. 1, 2023
The oxygen evolution reaction (OER), as an essential process in water decomposition and air batteries, has received increasing attention the context of clean energy production efficient storage.
Язык: Английский
Процитировано
100
Chemical Society Reviews, Год журнала: 2023, Номер 52(9), С. 3215 - 3264
Опубликована: Янв. 1, 2023
This review summarizes engineering strategies to modify MXene-based catalysts and their active site identification for applications in electrochemical conversion reactions.
Язык: Английский
Процитировано
97
Applied Catalysis B Environment and Energy, Год журнала: 2022, Номер 324, С. 122294 - 122294
Опубликована: Дек. 12, 2022
Язык: Английский
Процитировано
89
Advanced Science, Год журнала: 2024, Номер 11(21)
Опубликована: Март 19, 2024
Abstract The generation of green hydrogen by water splitting is identified as a key strategic energy technology, and proton exchange membrane electrolysis (PEMWE) one the desirable technologies for converting renewable sources into hydrogen. However, harsh anode environment PEMWE oxygen evolution reaction (OER) involving four‐electron transfer result in large overpotential, which limits overall efficiency production, thus efficient electrocatalysts are needed to overcome high overpotential slow kinetic process. In recent years, noble metal‐based (e.g., Ru/Ir‐based metal/oxide electrocatalysts) have received much attention due their unique catalytic properties, already become dominant acidic OER process applied commercial devices. these still face thorny problem conflicting performance cost. this review, first, metal briefly classified according forms existence, mechanisms outlined. Then, focus on summarizing improvement strategies with respect activity stability over years. Finally, challenges development prospects discussed.
Язык: Английский
Процитировано
80
ACS Omega, Год журнала: 2022, Номер 7(39), С. 35118 - 35135
Опубликована: Сен. 19, 2022
Upon various investigations conducted in search for a nanosensor material with the best sensing performance, need to explore these materials cannot be overemphasized as associated attributes are of vast interest researchers. Hence, there is investigate adsorption performances metal-doped fullerene surfaces: C59Au, C59Hf, C59Hg, C59Ir, C59Os, C59Pt, C59Re, and C59W on thiourea [SC(NH2)2] molecule using first-principles density functional theory computation. Comparative study has been carried out models four functionals, M06-2X, M062X-D3, PBE0-D3, ωB97XD, two double-hybrid (DH) DSDPBEP86 PBE0DH, reference at Gen/def2svp/LanL2DZ. The visual weak interactions such quantum atoms analysis noncovalent interaction invoked ascertain results, hence we arrived conclusive scientific report. In all cases, observed described physisorption phenomena, CH4N2S@C59Pt complex exhibits better than its studied counterparts between transition surfaces. Also, comparative study, DH functionals show performance estimating energies due their reduced mean absolute deviation (MAD) root-mean-square (RMSD) values (MAD = 1.0305, RMSD 1.6277) 0.9965, 1.6101) respectively.
Язык: Английский
Процитировано
75