Sustainable zinc–air battery chemistry: advances, challenges and prospects

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(17), P. 6139 - 6190

Published: Jan. 1, 2023

Sustainable zinc-air batteries (ZABs) are considered promising energy storage devices owing to their inherent safety, high density, wide operating temperature window, environmental friendliness, etc., showing great prospect for future large-scale applications. Thus, tremendous efforts have been devoted addressing the critical challenges associated with sustainable ZABs, aiming significantly improve efficiency and prolong operation lifespan. The growing interest in ZABs requires in-depth research on oxygen electrocatalysts, electrolytes, Zn anodes, which not systematically reviewed date. In this review, fundamentals of electrocatalysts air cathodes, physicochemical properties ZAB issues strategies stabilization anodes summarized from perspective fundamental characteristics design principles. Meanwhile, significant advances situ/operando characterization highlighted provide insights into reaction mechanism dynamic evolution electrolyte|electrode interface. Finally, several thoughts perspectives provided regarding opportunities ZABs. Therefore, review provides a thorough understanding advanced chemistry, hoping that timely comprehensive can shed light upcoming horizons prosperous area.

Language: Английский

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External Field‐Responsive Ternary Non‐Noble Metal Oxygen Electrocatalyst for Rechargeable Zinc‐Air Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(19)

Published: Feb. 3, 2024

Abstract Despite the increasing effort in advancing oxygen electrocatalysts for zinc‐air batteries (ZABs), performance development gradually reaches a plateau via only ameliorating electrocatalyst materials. Herein, new class of external field‐responsive comprising Ni 0.5 Mn Fe 2 O 4 stably dispersed on N‐doped Ketjenblack (Ni /N‐KB) is developed polymer‐assisted strategy practical ZABs. Briefly, activity indicator Δ E significantly decreased to 0.618 V upon photothermal assistance, far exceeding most reported (generally >0.680 V). As result, possesses comprehensive merits excellent power density (319 mW cm −2 ), ultralong lifespan (5163 cycles at 25 mA and outstanding rate (100 ) liquid ZABs, superb temperature deformation adaptability flexible Such improvement attributed photothermal‐heating‐enabled synergy promoted electrical conductivity, reactant‐molecule motion, active area, surface reconstruction, as revealed by operando Raman simulation. The findings open vast possibilities toward more‐energy‐efficient energy applications.

Language: Английский

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Constructing Hierarchical CoGa₂O₄–S@NiCo-LDH Core–Shell Heterostructures with Crystalline/Amorphous/Crystalline Heterointerfaces for Flexible Asymmetric Supercapacitors

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(6), P. 6998 - 7013

Published: Jan. 31, 2024

The rational design and construction of composite electrodes are crucial for overcoming the issues poor working stability slow ionic electron mobility a single component. Nevertheless, it is big challenge to construct core–shell heterostructures with crystalline/amorphous/crystalline heterointerfaces in straightforward efficient methods. Here, we have successfully converted portion crystalline CoGa2O4 into amorphous phase by employing facile sulfidation process (denoted as CoGa2O4–S), followed anchoring NiCo-layered double hydroxide NiCo-LDH) nanoarrays onto hexagonal plates nucleation points CoGa2O4–S, synthesizing dual-type flower-like 3D CoGa2O4–S@NiCo-LDH on carbon cloth. Furthermore, further adjust Ni/Co ratio LDH, achieving precise controllable heterostructures. Benefiting from abundant synergistic effect among various components, CoGa2O4–S@Ni2Co1-LDH electrode exhibits specific capacity 247.8 mAh·g–1 at 1 A·g–1 good rate performance. A CoGa2O4–S@Ni2Co1-LDH//AC flexible asymmetric supercapacitor provides an energy density 58.2 Wh·kg–1 power 850 W·kg–1 impressive capacitance retention 105.7% after 10,000 cycles 10 A·g–1. Our research profound insights other similar

Language: Английский

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A Ni-Fe layered double hydroxide anchored FeCo nanoalloys and Fe-Co dual single-atom electrocatalysts for rechargeable and flexible zinc-air and aluminum-air batteries

Nano Energy, Journal Year: 2023, Volume and Issue: 121, P. 109236 - 109236

Published: Dec. 26, 2023

Language: Английский

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A Prussian‐Blue Bifunctional Interface Membrane for Enhanced Flexible Al–Air Batteries

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(37)

Published: May 21, 2023

Abstract Flexible Al–air batteries have attracted widespread attention in the field of wearable power due to high theoretical energy density Al metal. However, efficiency degradation and anodizing retardation caused by parasitic corrosion severely limit performance breakthrough batteries. Herein, a Prussian‐blue bifunctional interface membrane is proposed improving discharge hydrogel‐based battery. When rational 12 mg·cm −2 loaded, effect anticorrosion activation optimal thanks formation stable breathable interface. The results demonstrate that flexible battery using can output 65.76 mW·cm . Besides, achieve capacity 2377.43 mAh·g −1 , anode 79.78%, 3176.39 Wh·kg at 10 mA·cm Density functional theory calculations uncover anticorrosion‐activation mechanism Fe 3+ with large number empty orbitals accelerate electrons transfer, nucleophilic reactant [Fe II (CN) 6 ] 4− promotes diffusion. These findings are beneficial inhibition interfacial weakening hysteresis for

Language: Английский

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Fe2NiO4/FeNiS2 heterostructure-assembled hollow microtubes with numerous intimate interfaces as advanced catalyst for Zn–Air battery

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151210 - 151210

Published: April 10, 2024

Language: Английский

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Semimetallic hydroxide materials for electrochemical water oxidation

Science China Materials, Journal Year: 2024, Volume and Issue: 67(5), P. 1551 - 1558

Published: April 12, 2024

Searching for catalyst materials with high intrinsic activity water oxidation holds the key to numerous clean energy technologies. Hydroxide semiconductors are electrochemically active drive oxygen evolution reaction (OER), but suffer from poor electronic conductivity, restricting their electrocatalytic activity. Here, a semimetallic hydroxide material was designed as efficient OER both improved conductivity and By cationic doping anionic vacancy manipulation, NiFe layered double (LDH) semiconductor turned into semi-metallic two orders of magnitude lower resistivity. Consequently, LDH (SM LDH) array electrode exhibited an intrinsically low overpotential 195 mV at 10 mA cm−2 Tafel slope 40.9 dec−1 in alkaline medium, outperforming commercial RuO2 catalysts (316 mV, 99.6 dec−1) under same test condition. In-depth Raman first-principles calculations demonstrated that enhanced SM associated which promoted formation stabilization high-valence metal sites oxyhydroxide intermediates. These finding suggest hydroxides advanced fascinating electric catalytic properties.

Language: Английский

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Layered double hydroxide-based nanomaterials for supercapacitors and batteries: Strategies and mechanisms

Progress in Materials Science, Journal Year: 2024, Volume and Issue: unknown, P. 101410 - 101410

Published: Dec. 1, 2024

Language: Английский

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Advances in aqueous zinc-ion battery systems: Cathode materials and chemistry

Progress in Materials Science, Journal Year: 2024, Volume and Issue: unknown, P. 101393 - 101393

Published: Oct. 1, 2024

Language: Английский

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Ru Single Atoms and Sulfur Anions Dual‐Doped NiFe Layered Double Hydroxides for High‐Current‐Density Alkaline Oxygen Evolution Reaction

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Abstract New anodic electrocatalysts with high performance and cost‐effectiveness at large current densities help advance the emerging anion exchange membrane water electrolyzer (AEMWE) technology. To this end, a ruthenium (Ru) single atoms sulfur (S) anions dual‐doped NiFe layered double hydroxides (Ru‐S‐NiFe LDH) catalyst is reported remarkably low alkaline oxygen evolution reaction (OER) overpotentials, mass activities prolonged stabilities densities. Inspiringly, AEMWE on Ru‐S‐NiFe LDH also superior to LDH. In‐depth mechanism investigations reveal that Ru not only act as highly active sites, but facilitate conductivity of Meanwhile, S accelerate electrochemical reconstruction OER‐active NiFeOOH alleviate over‐oxidation issue sites. Benefiting from these, shows significantly enhanced OER activity stability. Theoretical calculations further validate decreased free energy difference brought about by dual‐doping. This study offers proof‐of‐concept noble metal dual‐doping feasible strategy construct promising 3 d transition metal‐based toward practical electrolyzer.

Language: Английский

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