Advances in bifunctional electrocatalysts towards high-performing Li-air batteries DOI Creative Commons
Shadeepa Karunarathne,

Chamali K. Malaarachchi,

Amr M. Abdelkader

et al.

Journal of Power Sources, Journal Year: 2024, Volume and Issue: 607, P. 234553 - 234553

Published: April 26, 2024

The development of high-performance Li-air batteries (LABs) is an important quest for effectively utilizing high-energy density electric systems. One possible way to achieve this goal by introducing novel bifunctional electrocatalysts at the battery cathode, enhancing cycle life and discharge capacity LABs facilitating fast oxygen reaction kinetics. Understanding catalysts' function evolution essential developing a better-functioning LAB. In review, we discuss fundamentals, mechanisms, key concepts related LAB technology. We then provide critical discussions on recent advances in catalysts used cathodes through material characterization, electrochemical analysis, performance, in-situ ex-situ product DFT calculations, theoretical most up-to-date, thorough, broader discussion subject. These include general modified carbon nanostructures, noble metals, transition metal oxides, nitrides, sulfides, phosphides. Furthermore, special attention given techniques designed enhance catalytic activity modulation electronic structures. Various facet engineering eg electron approaches are explored, including heteroatom doping, alloying, hybridization, stoichiometric optimization, selective growth. Finally, suggest potential prospective pathways future research.

Language: Английский

Ru/Ir‐Based Electrocatalysts for Oxygen Evolution Reaction in Acidic Conditions: From Mechanisms, Optimizations to Challenges DOI Creative Commons
Rong Qin, Guanzhen Chen,

Caihong Feng

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(21)

Published: March 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.

Language: Английский

Citations

71
Strategies toward the development of high-energy-density lithium batteries DOI
Huizhe Niu, Nan Zhang,

Ying Lu

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 88, P. 111666 - 111666

Published: April 16, 2024

Language: Английский

Citations

56
Single Atom Catalysts Based on Earth-Abundant Metals for Energy-Related Applications DOI Creative Commons
Štěpán Kment, Aristides Bakandritsos, Iosif Tantis

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(21), P. 11767 - 11847

Published: July 5, 2024

Anthropogenic activities related to population growth, economic development, technological advances, and changes in lifestyle climate patterns result a continuous increase energy consumption. At the same time, rare metal elements frequently deployed as catalysts processes are not only costly view of their low natural abundance, but availability is often further limited due geopolitical reasons. Thus, electrochemical storage conversion with earth-abundant metals, mainly form single-atom (SACs), highly relevant timely technologies. In this review application SACs electrocatalytic chemicals fuels or products high content discussed. The oxygen reduction reaction also appraised, which primarily harnessed fuel cell technologies metal-air batteries. coordination, active sites, mechanistic aspects transition analyzed for two-electron four-electron pathways. Further, water splitting toward green hydrogen discussed terms evolution reaction. Similarly, production ammonia clean via nitrogen portrayed, highlighting potential single species.

Language: Английский

Citations

38
Co/CoO heterojunction rich in oxygen vacancies introduced by O2 plasma embedded in mesoporous walls of carbon nanoboxes covered with carbon nanotubes for rechargeable zinc–air battery DOI Creative Commons

Leijun Ye,

Weiheng Chen,

Zhong‐Jie Jiang

et al.

Carbon Energy, Journal Year: 2024, Volume and Issue: 6(7)

Published: Feb. 28, 2024

Abstract Herein, Co/CoO heterojunction nanoparticles (NPs) rich in oxygen vacancies embedded mesoporous walls of nitrogen‐doped hollow carbon nanoboxes coupled with nanotubes (P–Co/CoO V @NHCNB@NCNT) are well designed through zeolite‐imidazole framework (ZIF‐67) carbonization, chemical vapor deposition, and O 2 plasma treatment. As a result, the three‐dimensional NHCNBs NCNTs unique reduce charge transport resistance accelerate catalytic reaction rate P–Co/CoO @NHCNB@NCNT, they display exceedingly good electrocatalytic performance for reduction (ORR, halfwave potential [ E ORR, 1/2 = 0.855 vs. reversible hydrogen electrode]) evolution (OER, overpotential ( η OER , 10 377 mV@10 mA cm −2 ), which exceeds that commercial Pt/C + RuO most formerly reported electrocatalysts. Impressively, both aqueous flexible foldable all‐solid‐state rechargeable zinc–air batteries (ZABs) assembled @NHCNB@NCNT catalyst reveal large maximum power density outstanding long‐term cycling stability. First‐principles functional theory calculations show formation heterojunctions enhances conductivity, reduces energy barriers, accelerates kinetics rates. This work opens up new avenue facile construction highly active, structurally stable, cost‐effective bifunctional catalysts ZABs.

Language: Английский

Citations

30
Surface Engineered Single‐atom Systems for Energy Conversion DOI

Yutang Yu,

Zijian Zhu, Hongwei Huang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(16)

Published: Jan. 10, 2024

Abstract Single‐atom catalysts (SACs) are demonstrated to show exceptional reactivity and selectivity in catalytic reactions by effectively utilizing metal species, making them a favorable choice among the different active materials for energy conversion. However, SACs still early stages of conversion, problems like agglomeration low conversion efficiency hampering their practical applications. Substantial research focus on support modifications, which vital SAC stability due intimate relationship between atoms support. In this review, category supports variety surface engineering strategies employed SA systems summarized, including site (heteroatom doping, vacancy introducing, groups grafting, coordination tunning) structure (size/morphology control, cocatalyst deposition, facet engineering, crystallinity control). Also, merits single‐atom systematically introduced. Highlights comprehensive summary discussions utilization surface‐engineered diversified applications photocatalysis, electrocatalysis, thermocatalysis, devices. At end potential obstacles using field discussed. This review aims guide rational design manipulation target‐specific capitalizing characteristic benefits engineering.

Language: Английский

Citations

29
Mechanosynthesized electroactive materials for sustainable energy and environmental applications: A critical review DOI Creative Commons
Zhijie Chen, Gao‐Feng Han, Asif Mahmood

et al.

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 145, P. 101299 - 101299

Published: April 16, 2024

Electrochemistry-driven techniques for advanced energy storage/conversion and environmental protection play a crucial role in achieving sustainable development goals. As an indispensable component diverse electrochemical systems, electroactive materials gain soaring interest terms of rational design synthesis. Notably, mechanochemistry-based green powerful synthesis has been widely employed to fabricate materials, given their scalability tunability. Recently, mechanochemically synthesized have applied various fields, leading significant progress. However, systematic analysis these advancements is still missing. Herein, we comprehensively discuss recent achievements mechanosynthesized applications. The mechanochemical introduced, along with different types materials. Subsequently, the review delves into applications conversion/storage systems remediation. structure-performance correlation are illustrated by discussing effects process on internal external properties performance. Lastly, key perspectives this field discussed, including monitoring, field-assisted synthesis, material performance optimization, practical applications, mechanochemistry-driven fuels/chemicals By illustrating current advances related aims shed some light upcoming research synthesis-driven sustainability.

Language: Английский

Citations

28
An oxygen-coordinated cobalt single-atom electrocatalyst boosting urea and urea peroxide production DOI
Shengbo Zhang, Jin Meng, Hui Xu

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(5), P. 1950 - 1960

Published: Jan. 1, 2024

An oxygen-coordinated cobalt single-atom catalyst was successfully fabricated, exhibiting exceptional electrocatalytic activity toward urea and H 2 O production. Subsequently, the value-added peroxide efficiently synthesized.

Language: Английский

Citations

25
Boosting ORR/OER bifunctional electrocatalysis by promoting electronic redistribution of Fe-N-C on CoFe-FeNC for ultra-long rechargeable Zn-air batteries DOI
Sijing Zhang, Juan Yang, Lei Yang

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 359, P. 124485 - 124485

Published: Aug. 8, 2024

Language: Английский

Citations

23
Boosting the ORR/OER Activity of Cobalt‐Based Nano‐Catalysts by Co 3d Orbital Regulation DOI
Nan Meng,

Yun Feng,

ZiRui Zhao

et al.

Small, Journal Year: 2024, Volume and Issue: 20(35)

Published: April 2, 2024

Abstract The transition metal oxides/sulfides are considered promising catalysts due to their abundant resources, facile synthesis, and reasonable electrocatalytic activity. Herein, a significantly improved intrinsic catalytic activity is achieved for constructing Co‐based nanocrystal (Co‐S@NC) with the coordination of Co─S, Co─S─C, Co─N x ─C. calculational experimental results demonstrate that diversified chemical environment Co‐cations induces 3d orbitals high spin‐state exhibits coexistence Co 2+ fully occupied d π 3+ unpaired electrons in orbitals. diverse occupation contributes an elevated d‐band center ions, which accelerates oxygen reduction reaction evolution kinetics Co‐S@NC nanocrystal. Therefore, Li–O 2 batteries as cathode catalyst exhibit 300 cycles at current density 500 mA g −1 cut‐off capacity 1000 mAh . Moreover, ultrahigh discharge specific 34 587 obtained , corresponding energy 949 Wh kg prototype battery. study on orbital regulation nanocrystals provides innovative strategy bifunctional electrocatalysts toward practical application metal–air batteries.

Language: Английский

Citations

19
Aluminum–air batteries: current advances and promises with future directions DOI Creative Commons
Bharti Rani, Jitendra Kumar Yadav, Priyanka Saini

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(25), P. 17628 - 17663

Published: Jan. 1, 2024

Owing to their attractive energy density of about 8.1 kW h kg −1 and specific capacity 2.9 A g , aluminum–air (Al–air) batteries have become the focus research.

Language: Английский

Citations

18