Earth: An Oxidative Planet with Limited Atom Resources and Rich Chemistry DOI
Jaı̈rton Dupont, Pedro Lozano

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

Abstract Humanity faces an unprecedented survival challenge: climate change, driven by the depletion of natural resources, excessive waste generation, and deforestation. Six out nine planetary boundaries have been exceeded, signaling that Earth is far from a safe operating space for humanity. In this Viewpoint Article we explore three critical “atomic‐molecular” challenges: Earth's limited atomic its oxidative nature, very rich chemistry. Addressing these requires transformation in how produce consume, emphasizing sustainable practices aligned with United Nations’ 17 goals. The advancement science technology has extended human life expectancy improved quality life. However, to ensure future, must move towards less chemical processes, incorporate CH 4 −CO 2 redox chemistry into circular economy, transition linear, fossil fuel‐dependent economy bioeconomy. Reforestation recovery degraded lands are essential, alongside shift green dynamic governed principles thermodynamics kinetics, but alone insufficient. Achieving global sustainability coordinated economic, political, social decisions recognize resources nature. Together, efforts will position humanity meet challenges change secure future.

Language: Английский

Product Peroxidation Inhibition in Methane Photooxidation into Methanol DOI Creative Commons
Yuehan Cao, Zeai Huang,

Chunqiu Han

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(12)

Published: Jan. 17, 2024

Abstract Methane photooxidation into methanol offers a practical approach for the generation of high‐value chemicals and efficient storage solar energy. However, propensity C─H bonds in desired products to cleave more easily than those methane molecules results continuous dehydrogenation process, inevitably leading peroxidation. Consequently, inhibiting peroxidation is perceived as one most formidable challenges field direct conversion methanol. This review thorough overview typical mechanisms involved radical mechanism active site regulatory methods employed inhibit product photooxidation. Additionally, several perspectives on future research direction this crucial are proposed.

Language: Английский

Citations

11
The role of reverse Boudouard reaction during integrated CO2 capture and utilisation via dry reforming of methane DOI Creative Commons
Xiaotong Zhao, Shuzhuang Sun, Yuanyuan Wang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 491, P. 151668 - 151668

Published: April 26, 2024

Integrated carbon capture and utilisation (ICCU) is an emerging technology for simultaneous CO2 adsorption conversion into value-added products. This provides a more sustainable approach compared to storage. Dual-functional materials (DFMs) that couple sorbents (e.g. CaO) catalysts Ni) enable direct of sorbed reactions like dry reforming methane (DRM). However, the potential interactions between sorbent catalyst components within DFMs may induce distinct mechanisms individual materials. Elucidating these synergies interfacial phenomena vital guiding rational design DFMs. article investigates respective roles Ni/SiO2 sol–gel synthesised CaO in integrated via (ICCU-DRM) using decoupling approach. Through decoupled reactor experiments, it found activates react with deposits from CH4 decomposition, achieving maximal CO H2 yields 43.41 mmol g−1 46.78 as well 87.2 % at 650 °C. Characterisation shows coke would encapsulate Ni nanoparticles be active Boudouard reaction, indicating sufficient catalyst-sorbent contact necessary spillover. In-situ DRIFTS reveals no obvious CH4-CaCO3 reaction occurs, chemisorption on enables reverse which further verified by DFT calculations. The findings elucidate dependent synergistic CaO/CaCO3 ICCU-DRM, highlight importance catalyst-adsorbent optimising dual-functional

Language: Английский

Citations

10
Research Progress and Outlook on Photocatalytic Conversion of Methane to Methanol DOI

Taikang Jia,

Wenzhong Wang

ChemCatChem, Journal Year: 2024, Volume and Issue: 16(9)

Published: Jan. 3, 2024

Abstract Methane, a main component of natural gas, shale and combustible ice, is widely distributed in nature. The direct conversion efficient utilization methane have become crucial topics within the scientific community. However, two challenges persist this field: activation overoxidation inhibition. Recently, research on subject has reached its pinnacle stage. Herein, we present some works addressing these concerns, particularly employing photocatalytic approaches, with specific focus strategies aimed at enhancing selectivity towards methanol as desired product. Finally, discuss existing propose potential solutions for advancing methane‐to‐methanol technology.

Language: Английский

Citations

8
Advances in Oxidative Coupling of Methane DOI Creative Commons

Jinlin Deng,

Peili Chen, Shengpeng Xia

et al.

Atmosphere, Journal Year: 2023, Volume and Issue: 14(10), P. 1538 - 1538

Published: Oct. 8, 2023

C2+ hydrocarbons, especially olefins, as important basic chemical raw materials, mainly come from petroleum cracking. With the increasing scarcity of resources, search for new olefins production routes has become focus research, and by oxidative coupling methane (OCM) process attracted extensive attention. The OCM route is an alternative to resources also direction development efficient clean utilization natural gas. In this paper, mechanism, catalysts, other key factors are reviewed. mechanism OCM, including reaction pathway formation intermediate products, introduced. Then, commonly used such alkali metal/alkaline earth metal oxides, rare composite oxides with special structures, classical catalysts Mn/Na2WO4/SiO2, their mechanisms action in discussed. addition, application looping (CLOCM) olefin investigated, which a promising way due high selectivity low cost owing excellent performance catalyst recycling. These studies will help further understand provide guidance support applications related fields.

Language: Английский

Citations

15
Boosting Reactive Oxygen Species Formation Over Pd and VOδ Co‐Modified TiO2 for Methane Oxidation into Valuable Oxygenates DOI

Huanyu Zhou,

Fan Chen, Dandan Liu

et al.

Small, Journal Year: 2024, Volume and Issue: 20(29)

Published: Feb. 16, 2024

Direct photocatalytic methane oxidation into value-added products provides a promising strategy for utilization. However, the inefficient generation of reactive oxygen species (ROS) partly limits activation CH

Language: Английский

Citations

5
Polyhydroxyalkanoate Production by Methanotrophs: Recent Updates and Perspectives DOI Open Access
Sanjay K. S. Patel,

Deepshikha Singh,

Diksha Pant

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(18), P. 2570 - 2570

Published: Sept. 11, 2024

Methanotrophs are bacteria that consume methane (CH

Language: Английский

Citations

4
Low-temperature oxidative coupling of methane: A review DOI Creative Commons
Jingbo Hu, Yilin Zhao,

Fangwei Liu

et al.

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: unknown, P. 101053 - 101053

Published: Dec. 1, 2024

Language: Английский

Citations

4
Use of suspensions of phytosterol microparticles to improve the solubility of methane in water DOI Creative Commons

Jeanne Gallard,

Eliot Wantz,

Gilles Hébrard

et al.

OCL, Journal Year: 2025, Volume and Issue: 32, P. 1 - 1

Published: Jan. 1, 2025

Methane, an abundantly produced greenhouse gas, is a major driver of global climate change. The development sustainable processes for methane capture limited by the poor solubility this organic compound in water, but can be increased adding other compounds to aqueous solution. Here, we studied dispersions containing lipid microparticles phytosterols—a group sterol from plants—at room temperature and atmospheric pressure. phytosterols water was improved chemically, functionalization with glycerol carbonate solvent-free conditions, physically, antisolvent precipitation form particles water. We evaluated influence phytosterol on monitoring apparent partition coefficient between gas liquid phases defined Henry’s law. Phytosterol generated amphiphilic branches, which were characterized FTIR MALDI-TOF. These formed 2 12 μm diameter precipitation. Systems had half that corresponding control. gas-liquid equilibrium was, therefore, shifted state, demonstrating microparticles.

Language: Английский

Citations

0
Size Does Matter: Technoeconomic Analysis of Methane Electro-Oxidation DOI Creative Commons
Miao Wang, Ian D. Gates

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

There is growing focus on electrochemical oxidation of methane due to greater availability renewable electricity and the desire move cleaner production methane-based bulk chemicals. We analyze economic feasibility methanol, formaldehyde, formic acid, ethanol, acetic acetaldehyde, propanol at different scales (1, 10, 100, 1000 tonnes/day) determine key performance metrics (electricity price, current density, selectivity, conversion, stack cost) that enable production. The results show price cost are most important indicators, suggesting critical deployment hurdles need be addressed efficiency cost. With grid emission factors, all processes competitive compared thermal–catalytic processes.

Language: Английский

Citations

0
Methane Pyrolysis by Joule Heating for Graphitic Carbon and Hydrogen Production DOI
Abdalla Alghfeli,

Hengrui Xu,

Benjamin Heronimus

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0