New Tricks for an Old Dog: Grubbs Catalysts Enable Efficient Hydrogen Production from Aqueous-Phase Methanol Reforming DOI
Qian Wang,

Jialing Lan,

Rong Z. Liang

et al.

ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(4), P. 2212 - 2222

Published: Jan. 31, 2022

Herein, we report a new application of the prize-winning Grubbs catalysts, which have been widely applied for olefin metathesis, hydrogen production from aqueous-phase methanol reforming under easily achievable conditions (1 atm, <100 °C) with negligible CO formation. Out catalysts tested, best turnover frequency (158 h–1) and number (11424, 72 h) were both achieved third-generation catalyst (G-III). The TOF was G-III is competitive when compared some results reported ( Chem. Rev. 2018, 118, 372−433). Also, found to be versatile dehydrogenation ethanol formic acid. Mechanistic studies DFT calculations shed light on reaction mechanism, involves an unusual substrate (solvent)-assisted six-membered-ring (σ-bond) metathesis pathway. This work should open up opportunities in design connection economy and, more generally, development clean renewable energies.

Language: Английский

Homogeneous Catalysis for Sustainable Energy: Hydrogen and Methanol Economies, Fuels from Biomass, and Related Topics DOI Creative Commons
Amit Kumar, Prosenjit Daw, David Milstein

et al.

Chemical Reviews, Journal Year: 2021, Volume and Issue: 122(1), P. 385 - 441

Published: Nov. 2, 2021

As the world pledges to significantly cut carbon emissions, demand for sustainable and clean energy has now become more important than ever. This includes both production storage of carriers, a majority which involve catalytic reactions. article reviews recent developments homogeneous catalysts in emerging applications energy. The most focus been on hydrogen as several efficient have reported recently (de)hydrogenative transformations promising economy. Another direction that extensively covered this review is methanol Homogeneous investigated from CO

Language: Английский

Citations

408
Homogeneous manganese-catalyzed hydrogenation and dehydrogenation reactions DOI Creative Commons
Yujie Wang, Mingyang Wang, Yibiao Li

et al.

Chem, Journal Year: 2020, Volume and Issue: 7(5), P. 1180 - 1223

Published: Dec. 9, 2020

Language: Английский

Citations

217
Homogeneous and heterogeneous catalytic reduction of amides and related compounds using molecular hydrogen DOI Creative Commons
Jose R. Cabrero‐Antonino, Rosa Adam, Veronica Papa

et al.

Nature Communications, Journal Year: 2020, Volume and Issue: 11(1)

Published: Aug. 4, 2020

Abstract Catalytic hydrogenation of amides is great interest for chemists working in organic synthesis, as the resulting amines are widely featured natural products, drugs, agrochemicals, dyes, etc. Compared to traditional reduction using (over)stoichiometric reductants, direct molecular hydrogen represents a greener approach. Furthermore, amide highly versatile transformation, since not only higher (obtained by C–O cleavage), but also lower and alcohols, or amino alcohols C–N cleavage) can be selectively accessed fine tuning reaction conditions. This review describes most recent advances area H 2 exclusively molecularly defined homogeneous well nano-structured heterogeneous catalysts, with special focus on catalyst development synthetic applications.

Language: Английский

Citations

185
Manganese-catalyzed hydrogenation, dehydrogenation, and hydroelementation reactions DOI
Kuhali Das, Satyadeep Waiba, Akash Jana

et al.

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(11), P. 4386 - 4464

Published: Jan. 1, 2022

The emerging field of organometallic catalysis has shifted towards research on Earth-abundant transition metals due to their ready availability, economic advantage, and novel properties. In this case, manganese, the third most abundant transition-metal in Earth's crust, emerged as one leading competitors. Accordingly, a large number molecularly-defined Mn-complexes been synthesized employed for hydrogenation, dehydrogenation, hydroelementation reactions. regard, catalyst design is based three pillars, namely, metal-ligand bifunctionality, ligand hemilability, redox activity. Indeed, developed catalysts not only differ chelating atoms they possess but also working principles, thereby different turnover numbers product molecules. Hence, critical assessment molecularly defined manganese terms atoms, reaction conditions, mechanistic pathway, significant. Herein, we analyze complexes catalytic activity, versatility allow multiple transformations routes convert substrates target This article will be helpful get significant insight into design, aiding design.

Language: Английский

Citations

158
Hydrogen storage by liquid organic hydrogen carriers: Catalyst, renewable carrier, and technology – A review DOI Creative Commons

Chenyang Chu,

Kai Wu,

Bingbing Luo

et al.

Carbon Resources Conversion, Journal Year: 2023, Volume and Issue: 6(4), P. 334 - 351

Published: March 21, 2023

Hydrogen has attracted widespread attention as a carbon-neutral energy source, but developing efficient and safe hydrogen storage technologies remains huge challenge. Recently, liquid organic carriers (LOHCs) technology shown great potential for stable transport. This allows economical large-scale transoceanic transportation long-cycle storage. In particular, traditional liquids are derived from nonrenewable fossil fuels through costly refining procedures, resulting in unavoidable environmental contamination. Biomass holds promise the preparation of LOHCs due to its unique carbon-balance properties feasibility manufacture aromatic nitrogen-doped compounds. According recent studies, almost 100% conversion 92% yield benzene could be obtained advanced biomass technologies, showing preparing biomass-based LOHCs. Overall, present systems their applications introduced this review, technical paths summarized. Furthermore, paper provides an outlook on future development technology, focusing biomass-derived N-doped compounds

Language: Английский

Citations

121
Study progress on the pipeline transportation safety of hydrogen-blended natural gas DOI Creative Commons
Xiao Tian, Jingjing Pei

Heliyon, Journal Year: 2023, Volume and Issue: 9(11), P. e21454 - e21454

Published: Oct. 29, 2023

The core of carbon neutrality is the energy structure adjustment and economic transformation. Hydrogen energy, as a kind clean with great potential, has provided important support for implementation peaking goals China. How to achieve large-range, safe, reliable transportation hydrogen good benefits remains key limiting development energy. Using existing natural gas pipeline network can save many infrastructure construction costs transport hydrogen-blended gas. However, due differences in physical chemical properties gas, will bring safety risks operation certain extent. In this paper, influences on pipelines parts along are analyzed from two aspects pipe compatibility blending ratio, summarized leakage accumulation well combustion explosion. addition, integrity management relevant standards specifications reviewed. This paper points out shortcomings current gives some suggestions. Hopefully, work provide useful reference developing system.

Language: Английский

Citations

46
Material challenges in green hydrogen ecosystem DOI
Huihui Zhang, Yang Fu, Hien Trang Nguyen

et al.

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 494, P. 215272 - 215272

Published: July 17, 2023

Language: Английский

Citations

42
Recent Advances in Reversible Liquid Organic Hydrogen Carrier Systems: From Hydrogen Carriers to Catalysts DOI

Min‐Jie Zhou,

Yulong Miao, Yanwei Gu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(37)

Published: Feb. 20, 2024

Abstract Liquid organic hydrogen carriers (LOHCs) have gained significant attention for large‐scale storage due to their remarkable gravimetric capacity (HSC) and compatibility with existing oil gas transportation networks long‐distance transport. However, the practical application of reversible LOHC systems has been constrained by intrinsic thermodynamic properties performances associated catalysts in (de)hydrogenation cycles. To overcome these challenges, thermodynamically favored carriers, high‐performance catalysts, catalytic procedures need be developed. Here, advances recent years summarized, primarily centered on regular catalyzed homogeneous heterogeneous including dehydrogenative aromatization cycloalkanes arenes N ‐heterocyclics ‐heteroarenes, as well reverse hydrogenation processes. Furthermore, development metal complexes coupling, a new family based alcohols is described that can release H 2 under relatively mild conditions. Finally, views next steps challenges field technology are provided, emphasizing resources low‐cost technologies, scenarios.

Language: Английский

Citations

26
Durable and conductive anion exchange membranes based on Poly(m-triphenyl carbazolyl piperidinium) for water electrolysis DOI

Jun Wang,

Chunhui Zhao,

Zhicong Liu

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 58, P. 514 - 524

Published: Jan. 25, 2024

Language: Английский

Citations

17
Manganese‐Catalyzed Asymmetric Hydrogenation of Quinolines Enabled by π–π Interaction** DOI
Chenguang Liu, Mingyang Wang, Shihan Liu

et al.

Angewandte Chemie International Edition, Journal Year: 2020, Volume and Issue: 60(10), P. 5108 - 5113

Published: Nov. 26, 2020

Abstract The non‐noble metal‐catalyzed asymmetric hydrogenation of N‐heteroaromatics, quinolines, is reported. A new chiral pincer manganese catalyst showed outstanding catalytic activity in the affording high yields and enantioselectivities (up to 97 % ee). turnover number 3840 was reached at a low loading (S/C=4000), which competitive with most effective noble metal catalysts for this reaction. precise regulation enantioselectivity were ensured by π–π interaction.

Language: Английский

Citations

132