Rational Design of Photoanodes to Produce Value‐Added Chemicals Coupled with Hydrogen DOI Creative Commons
Hasmat Khan, Susanta Bera,

Myung‐Jin Jung

et al.

ChemElectroChem, Journal Year: 2024, Volume and Issue: 11(13)

Published: June 18, 2024

Abstract Green hydrogen fuel generation via the photoelectrochemical (PEC) approach has attracted considerable attention recently for its sustainability and eco‐friendliness. Photoelectrocatalysts are key component of PEC process. To produce green by this at a reasonable rate from water splitting waste valorization, proper design electronic structure modulation photoelectrocatalysts utmost importance. Therefore, in review, we discuss materials selection, design, engineering photoanode to efficiently harvest convert solar energy into value‐added chemicals. In regard, introduce fundamentals mechanistic insights conversion storage technologies, which would provide knowledge novices gain insight field while designing new photoanode. Moreover, mention importance various semiconducting their surface/interface aspects improve properties selective oxidation chemicals valorization coupled with generation. Finally, conclusions prospects technology highlighting major challenges potential commercialization.

Language: Английский

Interface ion-exchange strategy of MXene@FeIn2S4 hetero-structure for super sodium ion half/full batteries DOI
Mengqi Wang,

Binyang Qin,

Shimei Wu

et al.

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 650, P. 1457 - 1465

Published: July 16, 2023

Language: Английский

Citations

54
Revealing the Impact of Pulsed Laser-Produced Single-Pd Nanoparticles on a Bimetallic NiCo2O4 Electrocatalyst for Energy-Saving Hydrogen Production via Hybrid Water Electrolysis DOI
Raja Arumugam Senthil,

Sieon Jung,

Ahreum Min

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(5), P. 3320 - 3335

Published: Feb. 16, 2024

Nowadays, the assembling of hybrid water electrolysis using a hydrazine oxidation reaction (HzOR) instead slow anodic oxygen evolution (OER) has been established as favorable technology for efficient hydrogen (H2) production. Nevertheless, it is still critical to develop highly effective bifunctional electrocatalysts both (HER) and HzOR. In this work, we propose facile approach design synthesis single-Pd-nanoparticles-decorated bimetallic NiCo2O4 nanoplates electrocatalyst HER Initially, are synthesized by combination hydrothermal high-temperature calcination. Subsequently, single-Pd nanoparticles with varying proportions decorated on via pulsed laser irradiation (PLI), leading formation Pd/NiCo2O4 composites. The optimized composite shows remarkable electrocatalytic ability low overpotential 294 mV an ultrasmall working potential −6 (vs RHE) HzOR at 10 mA cm–2 in 1 M KOH electrolyte. Thus, overall splitting (OHzS) electrolyzer Pd/NiCo2O4∥Pd/NiCo2O4 system presents current densities 100 respective cell voltages 0.35 0.94 V. Notably, situ/operando Raman spectroscopy confirms surface α-Co(OH)2 during γ-NiOOH Furthermore, density function theory (DFT) calculations demonstrate that decoration Pd onto facilitates optimization adsorption free energy (ΔGH*) enhancement dehydrogenation kinetics. This work introduces strategy fabricating electrocatalysts, potentially useful energy-saving H2

Language: Английский

Citations

34
High Entropy Ceramics for Electromagnetic Functional Materials DOI Open Access
Luyang Li, Min Zhang, Miao Jiang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 9, 2024

Abstract Microwave absorbing materials play an increasingly important role in modern electronic warfare technology for enhancing electromagnetic compatibility and suppressing interference. High‐entropy ceramics (HECs) possess extraordinary physical chemical properties, more importantly, the high tunability of multi‐component HECs has brought new opportunities to microwave materials. Rich crystallographic distortions occupancies enable have highly efficient absorption excellent mechanical thermal stability. Therefore, structural advantages are integrated from comprehensive perspectives, emphasizing on dielectric magnetic properties phenomenon. Strategies proposed improve capacity HECs, including composition optimization, microstructure engineering, post‐treatment technology. Finally, problems obstacles associated with high‐entropy (HEMs) research discussed. The innovative design concepts highlighted.

Language: Английский

Citations

23
Synergistically coupling CoS/FeS2 heterojunction nanosheets on a MXene via a dual molten salt etching strategy for efficient oxygen evolution reaction DOI

Zuliang Zhang,

Liang Tian,

Chulong Jin

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(24), P. 14517 - 14530

Published: Jan. 1, 2024

CoS/FeS 2 heterojunction nanosheets on a MXene with excellent electrocatalytic OER performance are realized by dual molten salt etching strategy.

Language: Английский

Citations

22
Synthesis of TiO2 nanoparticles using different routes with enhanced photocatalytic and antibacterial properties DOI

Doaa F. Baamer,

Elsayed T. Helmy, Mohamed Mokhtar M. Mostafa

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: 50(9), P. 15780 - 15789

Published: Feb. 5, 2024

Language: Английский

Citations

16
Rational Design of Organic Electrocatalysts for Hydrogen and Oxygen Electrocatalytic Applications DOI Creative Commons
Ruiqi Cheng,

Xiaoqian He,

Kaiqi Li

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(25)

Published: March 8, 2024

Abstract Efficient electrocatalysts are pivotal for advancing green energy conversion technologies. Organic electrocatalysts, as cost‐effective alternatives to noble‐metal benchmarks, have garnered attention. However, the understanding of relationships between their properties and electrocatalytic activities remains ambiguous. Plenty research articles regarding low‐cost organic started gain momentum in 2010 been flourishing recently though, a review article both entry‐level experienced researchers this field is still lacking. This underscores urgent need elucidate structure–activity relationship design suitable electrode structures, leveraging unique features like controllability compatibility real‐world applications. classified into four groups: small molecules, oligomers, polymers, frameworks, with specific structural physicochemical serving activity indicators. To unlock full potential five strategies discussed: integrated surface property modulation, membrane technologies, electrolyte affinity regulation, addition anticorrosion species, all aimed at enhancing charge efficiency, mass transfer, long‐term stability during reactions. The offers comprehensive overview current state practical applications, bridging gap paving way future developments more efficient

Language: Английский

Citations

16
High-entropy materials for electrocatalytic applications: a review of first principles modeling and simulations DOI Creative Commons
Wenyi Huo, Shiqi Wang, F. J. Domínguez-Gutiérrez

et al.

Materials Research Letters, Journal Year: 2023, Volume and Issue: 11(9), P. 713 - 732

Published: June 26, 2023

High-entropy materials, for both complexity in structure and superiority performance, have been widely confirmed to be one possible kind of advanced electrocatalyst. Significant efforts dedicated modeling the atomic-level details high-entropy catalysts improve viability bottom-up design electrocatalysts. In this review, first, we survey developments various methods that are based on density functional theory. We review progress theory simulations emulating different Then, advancements materials electrocatalytic applications. Finally, present prospects field.Abbreviations: HEMs: materials; CCMs: compositionally complex DFT: theory; LDA: local approximation; GGA: generalized gradient VASP: Vienna Ab initio simulation package; ECP: effective core potential; PAW: projector-augmented wave VCA: virtual crystal CPA: coherent potential SQS: special quasi-random structures; SSOS: small set ordered SLAE: similar atomic environment; HEAs: alloys; FCC: face-centered cubic; BCC: body-centered HCP: hexagonal close-packed; ORR: oxygen reduction reaction; OER: oxide evolution HER: hydrogen RDS: rate-limiting step; AEM: adsorbate mechanism; LOM: lattice oxidation HEOs: oxides; OVs: vacancies; PDOS: projected densities states; ADR: ammonia decomposition NRR: nitrogen CO2RR: CO2 TMDC: transition metal dichalcogenide; TM: metal; AOR: alcohol GOR: glycerol UOR: urea HEI: intermetallic.

Language: Английский

Citations

26
An ammonium vanadate/MXene nanocomposite for high-performance ammonium ion storage DOI
Syam G. Krishnan, Chinmayee Padwal,

Xijue Wang

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(14), P. 8244 - 8253

Published: Jan. 1, 2024

We developed an NH4V4O10-MXene (NVO@MX) nanocomposite as promising positive electrode for advanced ammonium ion hybrid capacitors.

Language: Английский

Citations

12
Laser‐Synthesized Co‐Doped CuO Electrocatalyst: Unveiling Boosted Methanol Oxidation Kinetics for Enhanced Hydrogen Production Efficiency by In Situ/Operando Raman and Theoretical Analyses DOI

Sieon Jung,

Raja Arumugam Senthil, Ahreum Min

et al.

Small Methods, Journal Year: 2024, Volume and Issue: 8(8)

Published: Feb. 27, 2024

The present study details the strategic development of Co-doped CuO nanostructures via sophisticated and expedited pulsed laser ablation in liquids (PLAL) technique. Subsequently, these structures are employed as potent electrocatalysts for anodic methanol oxidation reaction (MOR), offering an alternative to sluggish oxygen evolution (OER). Electrochemical assessments indicate that Co-CuO catalyst exhibits exceptional MOR activity, requiring a reduced potential 1.42 V at 10 mA cm

Language: Английский

Citations

11
MXene-mediated reconfiguration induces robust nickel–iron catalysts for industrial-grade water oxidation DOI Creative Commons
Qian Yu, Yuzhen Chen,

Jiao Liu

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(9)

Published: Feb. 20, 2024

Nickel–iron oxy/hydroxides (NiFeO x H y ) emerge as an attractive type of electrocatalysts for alkaline water oxidation reaction (WOR), but which encounter a huge challenge in stability, especially at industrial-grade large current density due to uncontrollable Fe leakage. Here, we tailor the coordination by MXene-mediated reconfiguration strategy resultant NiFeO catalyst alleviate leakage and thus reinforce WOR stability. The introduction ultrafine MXene with surface dangling bonds electrochemical over Ni-Fe Prussian blue analogue induces covalent hybridization /MXene, not only accelerates kinetics also improves resistance against segregation. As result, coupled exhibits extraordinary durability ampere-level 1,000 h ultralow overpotential 307 mV. This work provides broad avenue mechanistic insights development nickel–iron catalysts toward industrial applications.

Language: Английский

Citations

10