Results 101 to 110 of about 185,465 (298)

The Influence of Graphene Curvature on Hydrogen Adsorption: Towards Hydrogen Storage Devices

, 2013
The ability of atomic hydrogen to chemisorb on graphene makes the latter a promising material for hydrogen storage. Based on scanning tunneling microscopy techniques, we report on site-selective adsorption of atomic hydrogen on convexly curved regions of
Beltram, Fabio, Coletti, Camilla, Goler, Sarah, Heun, Stefan, Mashoff, Torge, Pellegrini, Vittorio, Piazza, Vincenzo, Tozzini, Valentina   +7 more
core   +1 more source

2030 Ambitions for Hydrogen, Clean Hydrogen, and Green Hydrogen

ASEC 2023, 2023
Hydrogen production has been dominated by gray hydrogen (hydrogen produced from fossil fuels without carbon capture). Historical data for 2019–2021 show nearly steady global production of and demand for hydrogen, with an annual average of 92 Mt (million tonnes) for each.
openaire   +2 more sources

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Similarities and Differences Between CO2 Reduction and Electro‐Hydrogenation of Organic Carbonyls with Fe Porphyrins: A Case Study

ChemElectroChem
Iron porphyrins are well established for CO2 reduction, the electro‐hydrogenation of a CO bond in CO2, which can proceed via metal‐hydride formation (H+ reduction) or direct CO2 reduction by Fe0 with subsequent protonation.
Tianyin Huang, Yang Lyu, Junhong Chen, Dominik P. Halter   +3 more
doaj   +1 more source

Recent advances in carbon-based catalysts for CO2 hydrogenation toward circular economy

Carbon Capture Science & Technology
Thermo-catalytic CO2 hydrogenation with renewable energy-powered green H2 is one of the most promising approaches for simultaneously producing fuels and chemicals (i.e., syngas, alcohol, and olefins,) and achieve a circular carbon economy.
Hao Wen, Haiquan Liao, Xueyuan Pan, Kang Sun, Jianchun Jiang, Yanlin Liao, Xiangzhou Yuan, Hao Sun   +7 more
doaj   +1 more source

Failure of hydrogenation in protecting polycyclic aromatic hydrocarbons from fragmentation

, 2015
A recent study of soft X-ray absorption in native and hydrogenated coronene cations, C$_{24}$H$_{12+m}^+$ $m=0-7$, led to the conclusion that additional hydrogen atoms protect (interstellar) Polycyclic Aromatic Hydrocarbon (PAH) molecules from ...
Adoui, Lamri, Anderson, Emma K., Cederquist, Henrik, Chen, Tao, de Ruette, Nathalie, Delaunay, Rudy, Gatchell, Michael, Giacomozzi, Linda, Huber, Bernd A., Nascimento, Rodrigo F., Rousseau, Patrick, Schmidt, Henning T., Stockett, Mark H., Viziano, Violaine, Wolf, Michael, Zettergren, Henning   +15 more
core   +3 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Advances in catalyst metals and supports for lignin hydrogenation

能源环境保护
Developing technology for the utilization of lignin resources to obtain high-value aromatic chemicals will not only increase the economic value of lignin but also help achieve the "double carbon" goal.
GAO Jie, ZHANG Yitian, LUO Gang, CAO Yang* , ZHANG Shicheng*   +4 more
doaj   +1 more source

Laser Enhanced Hydrogen Passivation of Silicon Wafers

International Journal of Photoenergy, 2015
The application of lasers to enable advanced hydrogenation processes with charge state control is explored. Localised hydrogenation is realised through the use of lasers to achieve localised illumination and heating of the silicon material and hence ...
Lihui Song, Alison Wenham, Sisi Wang, Phillip Hamer, Mohammad Shakil Ahmmed, Brett Hallam, Ly Mai, Malcolm Abbott, Evatt R. Hawkes, CheeMun Chong, Stuart Wenham   +10 more
doaj   +1 more source

Energy-efficient CO2 hydrogenation with fast response using photoexcitation of CO2 adsorbed on metal catalysts. [PDF]

, 2018
Many heterogeneous catalytic reactions occur at high temperatures, which may cause large energy costs, poor safety, and thermal degradation of catalysts.
Hyeon, Seokwon, Kim, Chanyeon, Kim, Jihan, Kim, Whi Dong, Lee, Doh C, Lee, Hyunjoo, Lee, Jonghyeok   +6 more
core   +1 more source