Co-loading Pd and CeO2 on Silicalite-1 as High-performance Catalyst for Methane Dry Reforming Reaction DOI
Jing Xu, Rui Zhang, Ke Wang

et al.

Chemical Research in Chinese Universities, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

Language: Английский

Unleashing High Yield Urea Production by Pulse Electrodeposition of Bi/Cu via Co-reduction of N2 and CO2 DOI

Sukhjot Kaur,

Kalpana Garg,

Divyani Gupta

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: unknown, P. 85 - 93

Published: Dec. 13, 2024

The expanding agricultural practices rely on carbon- and energy-intensive Bosch–Meiser processes for urea synthesis. Alternatively, electrochemical coupling of CO2 N2 is emerging as a sustainable approach. Unfortunately, the high energy barrier cracking C–N bond limits synthesis efficiency. Herein, we have electrodeposited Bi Cu foil via triple pulse voltage, fabricated Bi(0.01 V)@Cu electrode demonstrates yield rate 646 μg h–1 mg–1cat. with 70.7% Faradaic efficiency at −0.45 V vs RHE. isotopic labeling experiments assert that produced solely from dissolved gases. More importantly, utilized in situ Raman spectroscopy Fourier transform infrared (FTIR) measurements to monitor real-time formation urea, further supported by microelectrochemical approach using Pt-microelectrode results were verified density functional theory (DFT) analysis. Moving step forward, plant growth flowering upon addition extracted been demonstrated practical application.

Language: Английский

Citations

3
Synergistic Catalysis for Recycling and Upcycling of Plastics DOI

Hongshun Ran,

Xinyang Sun, Mengying Zheng

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 8551 - 8585

Published: May 7, 2025

Language: Английский

Citations

0
Constructing the Al deficiency in Si-O(H)-Al units based on Pt/ZSM-5 for enhanced hydrocracking of polyethylene into high-quality liquid fuel DOI
Xia Zhong,

Jie Liu,

Li Gao

et al.

Nano Research, Journal Year: 2024, Volume and Issue: 17(11), P. 10088 - 10098

Published: Aug. 9, 2024

Language: Английский

Citations

2
Micelles Cascade Assembly to Tandem Porous Catalyst for Waste Plastics Upcycling DOI

Jiayou Feng,

Jindi Duan,

Chin‐Te Hung

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(26)

Published: April 22, 2024

Abstract Catalytic upcycling of polyolefins into high‐value chemicals represents the direction in end‐of‐life plastics valorization, but poses great challenges. Here, we report synthesis a tandem porous catalyst via micelle cascade assembly strategy for selectively catalytic cracking polyethylene olefins at low temperature. A hierarchically silica layer from mesopore to macropore is constructed on surface microporous ZSM‐5 nanosheets through dynamic micelles. The outer arrays can adsorb bulky quickly by capillary and hydrophobic effects, enhancing diffusion access active sites. middle mesopores present nanoconfinement space, pre‐cracking intermediates weak acid sites, which then transport zeolites micropores further strong Brønsted acidic structures, mimicking biomimetic protease clefts, ideally match steps polyolefins, thus suppressing coke formation facilitating product escape. As result, light hydrocarbons (C 1 ‐C 7 ) are produced with yield 443 mmol g −1 , where 74.3 % them C 3 6 olefins, much superior catalysts. This exemplifies superstructure design catalysts industrial economical plastic wastes.

Language: Английский

Citations

1
Synthesis of defect-rich La 2 O 2 CO 3 supports for enhanced CO 2 -to-methanol conversion efficiency DOI Creative Commons
Rui Zhang, Xiao Wang, Ke Wang

et al.

Science Advances, Journal Year: 2024, Volume and Issue: 10(49)

Published: Dec. 4, 2024

Converting CO 2 to methanol is crucial for addressing fuel scarcity and mitigating the greenhouse effect. Cu-based catalysts, with their diverse surface states, offer potential control reaction pathways generate reactive H* species. However, a major challenge lies in oxidizing active Cu 0 species by water generated during catalytic process. While nonreducible metal oxides are beneficial stabilizing metallic limited capability oxygen vacancies (O V ) hinders activation. Herein, we present strategy doping Nd into La O 3 (LOC) support, enhancing formation disrupting its lattice dyadicity. This leads higher concentration improved The resulting Cu/LOC:Nd catalyst notably outperforms Cu/LOC CuZnAl achieving yield of 9.9 moles per hour mole Cu. Our approach opens up possibilities catalysts conversion.

Language: Английский

Citations

1
Unveiling the Mechanism of Glycerol Oxidation to Lactic Acid on Pt/Sn-MFI Zeolite: an In situ Solid-state NMR Study DOI
Xuefeng Shen, Guodong Qi, Jiawei Liang

et al.

Chemical Research in Chinese Universities, Journal Year: 2024, Volume and Issue: 40(6), P. 935 - 942

Published: Oct. 18, 2024

Language: Английский

Citations

0
Efficient Hydrocracking of Waste Polyethylene into Branched Liquid Fuels over Low Pt‐loaded Nb2O5 Catalyst DOI
Shenglu Lu, Xiaohui Liu,

Yong Guo

et al.

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

Published: Oct. 29, 2024

Abstract Catalytic hydrocracking of polyethylene to branched liquid fuels has drawn particular attention. Here, bifunctional Pt/Nb 2 O 5 catalysts with different Pt loadings were prepared for hydrocracking. It was found that the low‐loading exhibited significantly higher catalytic activity than those high‐loading catalysts, 0.2Pt/Nb catalyst having best performance (79.2 % yield (C −C 19 ) alkanes accounting 85.2 %). Detailed characterizations revealed activation H played a crucial role in efficient polyethylene. The catalyst, highly dispersed nanoclusters on surface, facilitated active δ− species formation, thereby enhancing activity. This work highlights importance and provides insights design catalysts.

Language: Английский

Citations

0
Co-loading Pd and CeO2 on Silicalite-1 as High-performance Catalyst for Methane Dry Reforming Reaction DOI
Jing Xu, Rui Zhang, Ke Wang

et al.

Chemical Research in Chinese Universities, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

Language: Английский

Citations

0