Photocatalytic Aerobic Conversion of Methane DOI

Yuxiang Kong,

Chunxiang Yang,

Yiyu Cai

et al.

Deleted Journal, Journal Year: 2023, Volume and Issue: 1(3), P. 10005 - 10005

Published: Jan. 1, 2023

Language: Английский

Comparing BaZrO3 Perovskite and La2Zr2O7 Pyrochlore for Oxidative Coupling of Methane (OCM): The Importance of Basic Sites vs Oxygen Vacancies DOI

Xusheng Zhong,

Junwei Xu, Shi-Yu Wang

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(7), P. 1890 - 1898

Published: Feb. 12, 2024

La2Zr2O7 pyrochlore with intrinsic oxygen vacancies and BaZrO3 perovskite without were synthesized for the OCM reaction. It has been revealed that performance surface selective species of are higher than under reaction condition. This is because possesses more basic sites La2Zr2O7, thus it can stabilize reactive better at elevated temperature. In structure, A–O bond lattice two compounds mainly provides sites, but B–O promotes deep oxidation methane generated hydrocarbons. The types prone to be associated properties A-site metal oxides.

Language: Английский

Citations

4
SrSnO3 perovskite vs. Nd2Sn2O7 pyrochlores for oxidative coupling of methane: deciphering the reactive sites difference DOI Open Access

Rumeng Ouyang,

Junwei Xu,

Xusheng Zhong

et al.

Chemical Synthesis, Journal Year: 2024, Volume and Issue: 4(4)

Published: Nov. 14, 2024

Herein, SrSnO3 perovskite and Nd2Sn2O7 pyrochlore with definite structures have been synthesized using a hydrothermal method, the differences in their reactive sites for oxidative coupling of methane (OCM) are investigated. The primary products C2 hydrocarbons COx, respectively. selectivity is primarily affected by basic chemisorbed oxygen species O22-. For pyrochlore, key factors affecting conversion COx acidic (chemisorbed weakly bonded lattice oxygen). directly generated through intrinsic vacancies, whereas those vacancies created under high-temperature distortions. tightness stacking between [SnO6] octahedra main factor two composite oxides. loose, resulting relatively weak Sn–O bond strength. During OCM reaction, prone to breakage, abundant vacancies. Additionally, influence on amount more important than that which attributed fact can stabilize catalyst surface.

Language: Английский

Citations

4
O2-Assisted Methane Oxidation to Methanol over Single Atom-Decorated Anatase TiO2: Mechanistic Insights from First Principles DOI
Hasna Afifah, Muhammad Haris Mahyuddin, Adhitya Gandaryus Saputro

et al.

New Journal of Chemistry, Journal Year: 2025, Volume and Issue: 49(6), P. 2382 - 2392

Published: Jan. 1, 2025

Utilizing O 2 in developing catalytic direct methane-to-methanol conversion process offers a sustainable route to harness methane, with first-principles insights revealing key mechanistic pathways for enhanced efficiency.

Language: Английский

Citations

0
Study on Reducibility Optimization on BaTiO3 for Enhancing C2 Yield in the Oxidative Coupling of Methane DOI

Rongguang Gan,

Hidetoshi Miyazaki, Masaaki Haneda

et al.

Materials Research Bulletin, Journal Year: 2025, Volume and Issue: unknown, P. 113415 - 113415

Published: March 1, 2025

Language: Английский

Citations

0
Application of Lignin-Derived Carbon Materials in Adsorption and Separation DOI Creative Commons
Xiaorui Dong, Yunlei Zhang,

Shouyan Shao

et al.

Separations, Journal Year: 2025, Volume and Issue: 12(4), P. 88 - 88

Published: April 4, 2025

In the context of sustainable human development and depletion petroleum resources, lignin has received widespread attention as a carbon-rich, low-cost, renewable resource. Owing to their distinctive physical chemical properties, carbon materials are extensively applied in fields adsorption separation. The conversion into diverse multifunctional materials, such porous carbon, activated fibers, foams, aerogels, emerged pivotal strategy for high-value utilization lignin. this paper, representative examples various lignin-based utilized field separation over past decade reviewed categorized according type preparation methods effects described.

Language: Английский

Citations

0
Controllably Modulating Oxygen Vacancies on Nonstoichiometric Nd−Ce−O Binary Oxides for Low‐temperature Oxidative Coupling of Methane DOI
Ying Gong,

Chengxin Lu,

Xusheng Zhong

et al.

European Journal of Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 27(15)

Published: Feb. 7, 2024

Abstract Herein, we synthesised a series of nonstoichiometric Nd−Ce−O composite oxides with fluorite or rare‐earth C‐type phase structure using the glycine combustion method for oxidative coupling methane (OCM) reaction. As amount Nd 3+ increases, oxygen vacancies in this gradually increase, leading to an increasing C 2 ‐selective species O − generated by vacancies. In addition, increase , number moderate basic sites on catalyst surface also improves, another significant factor affecting OCM reaction performance oxides. 0.9 Ce 0.1 1.55 possesses optimal low‐temperature performance, achieving 8.0 % yield at 450 °C and 14.1 700 °C. This can be attributed crystalline which exhibits highest abundance vacancies, selective sites.

Language: Английский

Citations

2
Recent Advances in the Use of Controlled Nanocatalysts in Methane Conversion Reactions DOI Creative Commons

Felipe Anchieta e Silva,

Thenner S. Rodrigues

Methane, Journal Year: 2024, Volume and Issue: 3(2), P. 359 - 379

Published: June 11, 2024

This study investigates the utilization of controlled nanocatalysts in methane conversion reactions, addressing pressing need for efficient as a feedstock valuable chemicals and clean energy. The methods employed include comprehensive review recent advancements nanocatalyst synthesis, characterization, application, well critical analysis underlying mechanisms controversies activation transformation. main findings reveal significant progress design synthesis nanocatalysts, enabling enhanced activity, selectivity, stability reactions. Moreover, highlights importance resolving surrounding metal–support interactions rational catalyst design. Overall, underscores pivotal role nanotechnology shaping future sustainable energy production, providing insights guiding research directions technological developments this field.

Language: Английский

Citations

2
Regular perovskite SrTiO3 and monoclinic layered perovskite Nd2Ti2O7 for oxidative coupling of methane: Elucidating the role of chemisorbed oxygen species and lattice oxygen DOI
Junwei Xu,

Rumeng Ouyang,

Shiyu Wang

et al.

Molecular Catalysis, Journal Year: 2024, Volume and Issue: 564, P. 114340 - 114340

Published: June 25, 2024

Language: Английский

Citations

2
Effects of co-pyrolysis interaction performance of cellulose and lignin on the gas products and hydrogen generation path DOI

Xiaoran Li,

Kehui Cen,

Jinjin Li

et al.

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 222, P. 119858 - 119858

Published: Oct. 19, 2024

Language: Английский

Citations

2
High photocatalytic yield in the non-oxidative coupling of methane using a Pd-TiO2 nanomembrane gas flow-through reactor DOI Creative Commons

Victor Longo,

Luana De Pasquale,

Francesco Tavella

et al.

EES Catalysis, Journal Year: 2024, Volume and Issue: 2(5), P. 1164 - 1175

Published: Jan. 1, 2024

The photocatalytic non-oxidative coupling of methane (NOCM) is a highly challenging and sustainable reaction to produce H

Language: Английский

Citations

1