Oxygen‐Vacancy‐Rich Heterostructured CeO2‐CuO Nanowires for Urea Electrosynthesis via Co‐Reduction of Nitrate and CO2 DOI

Ziqiang Wang,

R. Zhang,

Yile Wang

et al.

Advanced Sustainable Systems, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Abstract The mild electrosynthesis of urea presents a promising approach to replace the energy‐intensive conventional manufacturing processes, and identifying highly active selective electrocatalysts is paramount importance. Herein, synthesis oxygen‐vacancy‐rich CeO 2 ‐CuO heterostructure nanowires on copper foam (CeO ‐CuO/CF) are reported. CuO‐CeO notably enhances electron transfer quickens reaction dynamics, increased oxygen vacancies greatly promote C‐N coupling nitrate CO urea. As such, ‐CuO/CF achieves remarkable faraday efficiency 31.96% yield 720.9 µg cm −2 h −1 , along with outstanding stability. This research offers electrocatalyst for sustainable on‐site production

Language: Английский

Destabilization of Single‐Atom Catalysts: Characterization, Mechanisms, and Regeneration Strategies DOI Open Access

Zhiquan Lang,

Xixi Wang,

Sobia Jabeen

et al.

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

Published: Jan. 19, 2025

Abstract Numerous in situ characterization studies have focused on revealing the catalytic mechanisms of single‐atom catalysts (SACs), providing a theoretical basis for their rational design. Although research is relatively limited, stability SACs under long‐term operating conditions equally important and prerequisite real‐world energy applications, such as fuel cells water electrolyzers. Recently, there has been rise destabilization regeneration SACs; however, timely comprehensive summaries that provide catalysis community with valuable insights directions are still lacking. This review summarizes recent advances strategies SACs, specifically highlighting various state‐of‐the‐art techniques employed studies. The factors induce identified by discussing failure active sites, coordination environments, supports, reaction scenarios. Next, primary introduced, including redispersion, surface poison desorption, exposure subsurface sites. Additionally, advantages limitations both ex discussed. Finally, future proposed, aimed at constructing structure–stability relationships guiding design more stable SACs.

Language: Английский

Citations

4
Pd Nanoparticle Size‐Dependent H* Coverage for Cu‐Catalyzed Nitrate Electro‐Reduction to Ammonia in Neutral Electrolyte DOI
Hongbo Zhu,

Jiacheng Jayden Wang,

Zian Xu

et al.

Small, Journal Year: 2024, Volume and Issue: 20(46)

Published: Aug. 3, 2024

Abstract Electrochemical conversion of nitrate (NO 3 − ) to ammonia (NH is an effective approach reduce pollutants in the environment and also a promising low‐temperature, low‐pressure method for synthesis. However, adequate H * intermediates are highly expected NO hydrogenation, while suppressing competitive hydrogen evolution. Herein, effect coverage on RR synthesis by Cu electrocatalysts investigated. The can be adjusted changing Pd nanoparticle sizes. optimized Pd@Cu with average size 2.88 nm shows best activity RR, achieving maximum Faradaic efficiency 97% (at −0.8 V vs RHE) NH yield 21 mg h −1 cm 2 , from industrial wastewater level 500 ppm – . In situ electrochemical experiments indicate that particles promote hydrogenation via well‐modulated adsorbed species. Coupling anodic glycerol oxidation reaction, ammonium formate successfully obtained as value‐added products membrane electrode assembly electrolyzer. This work provides feasible strategy obtaining size‐dependent hydrogenation.

Language: Английский

Citations

13
Synergism of Hydrogen-Induced Interstitial Effect and Gold-Induced Alloying Effect in PdAuH Metallene for Urea Electrosynthesis from Nitrate and Carbon Dioxide DOI
You Xu, Junjie Wang,

Youwei Sheng

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 8, 2025

Urea is a common agricultural fertilizer and industrial raw material, but at present, the traditional production of urea energy-and pollution-intensive. Electrocatalytic coupling CO2 ubiquitous nitrogen sources to synthesize considered as promising alternative method requiring high-performance catalysts boost C–N electrocatalysis process. Herein, hydrogen-intercalated Pd–Au bimetallene (PdAuHene) was prepared by three-step used for electrosynthesis from NO3– CO2, deriving an optimum Faradaic efficiency 33.88% yield rate 6.68 mmol g–1 h–1 applied potential −0.6 V vs RHE. Detailed material characterizations electrochemical studies reveal that metallene structure with ultrathin thickness could improve atomic utilization precious metal atoms, introduction Au H atoms adjust electronic Pd regulate evolution pathway key N-/C-intermediates, promote form urea.

Language: Английский

Citations

1
Regulating the Critical Intermediates of Dual‐Atom Catalysts for CO2 Electroreduction DOI
Mengyang Zhang,

Dingyang Zhou,

Xueqin Mu

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: May 27, 2024

Electrocatalysis is a very attractive way to achieve sustainable carbon cycle by converting CO

Language: Английский

Citations

7
The Reconstruction of Bi2Te4O11 Nanorods for Efficient and pH‐universal Electrochemical CO2 Reduction DOI
Jiadong Chen,

Tingjie Mao,

Juan Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(41)

Published: July 12, 2024

The electrochemical CO

Language: Английский

Citations

7
Heterogeneous nanoporous organic frameworks-based catalysts for electrochemical CO2 reduction reaction DOI Open Access
Yajuan Ma, Guangjin Zhang, Qiuhan Yu

et al.

Energy Materials, Journal Year: 2025, Volume and Issue: 5(6)

Published: Feb. 24, 2025

Converting captured carbon dioxide (CO2) into valuable chemicals and fuels through electrocatalysis realizing the anthropogenic closed-carbon cycle can provide new solutions to environmental energy problems. Nanoporous organic frameworks, including metal-organic frameworks (MOFs) porous polymers (POPs), as a class of potential electrocatalysts, have made great progress in CO2 reduction reaction due their high porosity, large specific surface area, structural/functionalization diversity. In this review, recent developments pristine MOFs/POPs, MOFs/POPs composite, MOFs-/POPs-derived catalysts are discussed from aspects catalyst design, synthesis strategy, test techniques, performance validation, active sites, basic mechanism. We further summarize challenges prospects MOFs/POPs-based materials practical applications for reactions point out paths future research. This review comprehensive reference advanced design systematic cognition efficient nanoporous framework electrocatalytic reduction.

Language: Английский

Citations

0
Enhanced electrocatalytic CO2 reduction through surface modification of Cu-based catalysts DOI
Meng Zhang, Yuanyuan Jin, Zheng Zhang

et al.

Fuel, Journal Year: 2025, Volume and Issue: 392, P. 134576 - 134576

Published: March 5, 2025

Language: Английский

Citations

0
Bridge‐Oxygen Bond: An Active Group for Energy Electrocatalysis DOI Open Access
Nana Zhang, Zilan Zhang,

Siwei Yan

et al.

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

Published: March 20, 2025

Abstract Energy electrocatalytic reactions such as hydrogen evolution reaction, oxygen reduction nitrogen carbon etc., are important to solve the current energy shortage and increasing environmental problems. Developing novel efficient catalyts for these has become an essential urgent issue. Catalysts incorporating bridge‐oxygen bond have received attention due their superior conductivity stability, which favorable optimizing reaction mechanism improving kinetics. This paper provides a comprehensive review encompassing concept of bond, means characterization, activity in electrocatalysis effect on catalytic performance. Through this review, it is expected furnish valuable reference rational design catalysts featuring structure across diverse reactions.

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
Carbon‐Supported Nano‐Dispersed Metallic Copper Derived From Carbonization of MOF‐199 for Electrocatalytic CO2 Reduction DOI
Min‐Hua Huang, Chun‐Chieh Huang,

Taki Suginaga

et al.

Chemistry - An Asian Journal, Journal Year: 2025, Volume and Issue: unknown

Published: April 9, 2025

Abstract CO 2 emissions and accumulation in the ecosystem have exacerbated climate change increased global temperature. This study focused on activation of hydrothermally synthesized Cu metal–organic framework (MOF‐199) with potassium citrate (C 6 H 5 K 3 O 7 ) to produce MOF‐derived carbon incorporated nano‐dispersed metallic oxidative species facilitate electrochemical reduction. Among all MOF samples, resulting carbon, activated by C , demonstrated highest electrocatalytic current lowest charge transfer resistance, achieving a Faradaic efficiency exceeding 50% for production acetic acid (CH COOH) at an applied potential − 1.1 V (vs RHE). The addition during preparation endowed mesoporous structure, thereby enhancing adsorption activation. A proposed reaction pathway suggested that generation is critical forming Cu─C bonds producing CH COOH. indicates Cu‐containing beneficial properties applications owing its nanoispersed features could be readily synthesized.

Language: Английский

Citations

0