Liquid Metal Transport Crystal Growth: A Liquid Phase Deposition Strategy for On-Substrate Design of Metal Crystals DOI

Yuanzhu Mao,

Yuan Chi, Charlie Ruffman

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: May 21, 2025

Liquid phase deposition is widely employed for growing substrate-supported thin films and structures. While this strategy usually shows fast growth kinetics compared with vapor deposition, it imposes less control over crystalline phases, morphologies orientations at the individual crystal level. Here we demonstrate a metallic liquid method substrate-supported, highly faceted metal crystals diverse phases morphologies. During transport synthesis, solvent dissolves chosen solute carries solvated zero-valence atoms to target substrate, where deposits as microscopic crystals. The use of low-melting-point gallium allows phase, facet, size shape be regulated low temperatures range monometallic bimetallic grow on various substrates. We perform Wulff construction ab initio molecular dynamics simulation explain energetics habits that lead observed morphological diversity. This work expands solvents fine-tuning composition, morphology properties

Language: Английский

Enhancing Urea Electrosynthesis From CO2 and Nitrate Through High‐Entropy Alloying DOI Open Access

Xiaokang Chen,

Yi Tan,

Jian Jun Yuan

et al.

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

Published: March 22, 2025

Abstract Ordered intermetallic compounds, one of the most effective alloying ways enhancing electrocatalytic activity may provide more active sites for intermediates adsorption in single catalytic reactions. However, catalysis involving several starting materials (such as co‐catalytic synthesis urea from CO 2 and NO 3 ⁻), it typically cannot favor multiple adsorption, leading to preferred individual preventing C─N coupling. As a proof concept, AuCuIrCo medium‐entropy (MEI) compounds are synthesized use Pd disrupt ordered arrangement, achieving PdAuCuIrCo high‐entropy alloy (HEA) counterpart synthesis. In situ spectroscopic analyses indicate that MEI produces greater NH₃–resultant sole ⁻ reduction, while HEA yields coupling products. Theoretical calculations shows reduced * energy compared lowers barriers both hydrogenation processes, allowing co‐adsorption with , whereas excessively stabilizes favoring single‐pathway reduction NH . Consequently, achieves high yield rate 52.43 mmol h⁻¹ g⁻¹ Faradaic efficiency 22.57% at −0.9 V, greatly surpassing MEI. This study provides framework development multi‐pathway

Language: Английский

Citations

1
A Cu/Fe3O4@CN tandem catalyst for efficient ammonia electrosynthesis from nitrate reduction DOI

Xuetao Cheng,

Huilin Zhao, Pengfei Liu

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 682, P. 703 - 714

Published: Nov. 29, 2024

Language: Английский

Citations

4
Intermetallic Compound and Solid Solutions of Co75Me25 (Me: Si, Fe, Cr) as Catalysts for the Electrochemical Reaction of Nitrate Conversion to Ammonia DOI Open Access
Irina Kuznetsova, Dmitry Kultin, Olga Lebedeva

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(4), P. 1650 - 1650

Published: Feb. 14, 2025

A sustainable reaction of electrocatalytic nitrate conversion in ammonia production (NO3RR) occurring under ambient conditions is currently prime interest, as well urgent research due to the real potential replacement environmentally unfavorable Haber-Bosch process. Herein, a series electrocatalysts based on two-component cobalt alloys was synthesized using low-cost non-noble metals Co, Fe, Cr, and also Si. The samples were characterized studied by following methods: SEM, EDX, XRD (both transmission reflection), UV-VIS spectroscopy, optical microscopy, linear (and cyclic) voltammetry, chronoamperometry, electrochemical impedance spectroscopy. Beyond that, determination electrochemically active surface area carried out for all electrocatalysts. Unexpectedly, sample having an intermetallic compound (IMC) composition Co2Si turned be most highly effective. highest Faradaic efficiency (FE) 80.8% at E = -0.585 V (RHE) yield rate 22.3 µmol h-1 cm-2 -0.685 indicate progressive role IMC main component electrocatalyst. Thus, this study demonstrates promise enormous efficient NO3RR. This work can serve primarily starting point future studies reactions catalysts containing metals.

Language: Английский

Citations

0
Strong p–d Orbital Hybridization in Atomically Ordered Intermetallic Pd3Bi Metallene Enables Energy-Efficient Simultaneous Electrosynthesis of a Nylon-6 Precursor and Glycolic Acid DOI
You Xu,

Jiangwei Xie,

Youwei Sheng

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 6606 - 6617

Published: April 8, 2025

Language: Английский

Citations

0
Neighboring clusters as additional adsorption sites to regulate the selectivity of single-atom catalysis DOI
Xuan Zheng, Shifei Ding, Yi Lu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162508 - 162508

Published: April 1, 2025

Language: Английский

Citations

0
Computation‐Guided Design of Ru‐Based Intermetallic Catalysts Enabling Nearly 100% Selectivity for Electrocatalytic Ammonia Synthesis at Ultra‐Low Potential DOI
Chaoqun Ma,

Huaifang Zhang,

Yuanqiang Yang

et al.

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

Published: April 30, 2025

Abstract Electrochemical nitrate reduction reaction (NO 3 RR) holds significant promise for converting the NO ⁻ pollutants into valuable ammonia (NH ), offering a sustainable alternative to energy‐intensive Haber‐Bosch process by operating under mild conditions with renewable energy sources. However, unsuitable adsorption of *NO and inadequate supply active hydrogen (*H) during RR lead low Faradaic efficiency in NH production. Herein, density functional theory calculations are initially employed evaluate energies *H 13 Ru‐p‐block metal intermetallic compounds (IMCs). The results demonstrate that Ru‐Sb IMCs exhibit great potential as electrocatalysts, demonstrating exceptional − capacity efficient suppression competing evolution reaction, outperforming other IMCs. As guided calculation results, supported on carbon black is synthesized, i.e., RuSb/C RuSb 2 /C. And exhibits impressive performance an nearly 100% (99.7%) stability at ‐0.05 V, significantly exceeding those most recently reported Ru‐based electrocatalysts RR.

Language: Английский

Citations

0
Liquid Metal Transport Crystal Growth: A Liquid Phase Deposition Strategy for On-Substrate Design of Metal Crystals DOI

Yuanzhu Mao,

Yuan Chi, Charlie Ruffman

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: May 21, 2025

Liquid phase deposition is widely employed for growing substrate-supported thin films and structures. While this strategy usually shows fast growth kinetics compared with vapor deposition, it imposes less control over crystalline phases, morphologies orientations at the individual crystal level. Here we demonstrate a metallic liquid method substrate-supported, highly faceted metal crystals diverse phases morphologies. During transport synthesis, solvent dissolves chosen solute carries solvated zero-valence atoms to target substrate, where deposits as microscopic crystals. The use of low-melting-point gallium allows phase, facet, size shape be regulated low temperatures range monometallic bimetallic grow on various substrates. We perform Wulff construction ab initio molecular dynamics simulation explain energetics habits that lead observed morphological diversity. This work expands solvents fine-tuning composition, morphology properties

Language: Английский

Citations

0