![](images/graphics/blank.gif)
Hydrogen gas
-
The geometries and relative stabilities of 15 tautomeric forms and the corresponding isomers of the studied molecules have been identified and their relative stabilities are investigated. The potential energy profiles and intrinsic reaction coordinates (IRC) calculations along the proton transfer coordinates both in the ground and in the excited state are monitored as well. The impact of the donating (OMe) and withdrawing (NO2) groups on the single and double proton transfers are investigated both in the gas phase and solution.
9p
dianmotminh02
03-05-2024
4
1
Download
-
A new semi-empirical technic has been established relying on the linkage between the chemistry in the bulk liquid and that taking place in the acoustic cavitation bubble. The open-source COPASI software has been used for the optimization of number density according to the total yield of a single bubble and the fitting of the experimental yield of hydrogen peroxide in the sonicated solution. It was observed that the number density is increased with the rise of ultrasound frequency from 200 to 1140 kHz, independently of the saturating gas nature (O2, Ar or air).
10p
dianmotminh02
03-05-2024
2
2
Download
-
Ebook "Solid state gas sensors – Industrial application" focuses on what the research community labels as solid state gas sensors, where a gas directly changes electrical properties of a solid, which serves as a primary signal for the transducer. Therefore electrochemical, mass/viscoelastic, optical and calorimetric effects are out of the scope of this topic and have not been included.
274p
coduathanh1122
27-03-2024
4
1
Download
-
Part 1 book "Nuclear hydrogen production handbook" includes content: The role of hydrogen in the world economy, nuclear hydrogen production - an overview, water electrolysis, steam electrolysis, thermochemical decomposition of water, conversion of hydrocarbons, biomass method, radiolysis of water, water reactor, high temperature gas reactor, sodium fast reactor, gas fast reactor, fluoride salt advanced high temperature reactor, STAR-H2 - A Pb-Cooled, long refueling interval reactor for hydrogen production.
395p
muasambanhan09
12-03-2024
1
0
Download
-
Ebook "Microbial BioEnergy: Hydrogen production (Advances in photosynthesis and respiration, Volume 38)" is focused on the biological machinery that microorganisms use to produce hydrogen gas. The book summarizes the achievements over the past decade in the biochemistry, structural and molecular biology, genomics and applied aspects of microbial H2-production, including microbial fuel cells (MFC), by phototrophs such as purple sulfur and non-sulfur bacteria (Thiocapsa spp., Rhodobacter and Rhodopseudomonas spp.) microalgae (Chlamydomonas) and cyanobacteria (Anabaena spp.
390p
manmanthanhla0201
26-02-2024
2
1
Download
-
The results show that the O atom, as compared to the S, Se, and Te ones acting as proton acceptors, plays a peculiar role in the C-H blue shift of stretching frequencies involving hydrogen bonds. It is found that the magnitude of red- or blue-shift of the C-H stretching frequency in the hydrogen bond is mainly determined by the C-H polarity (DPE) and gas phase basicity (PA) of the proton acceptor in the isolated isomer, besides relevant weak interactions and the geometrical structure of the formed complex.
17p
vibego
02-02-2024
0
0
Download
-
Part 1 book "Gas purification" includes content: Introduction; alkanolamines for hydrogen sulfide and carbon dioxide removal; mechanical design and operation of alkanolamine plants; removal and use of ammonia in gas purification; alkaline salt solutions for acid gas removal.
427p
muasambanhan06
01-02-2024
3
2
Download
-
Part 2 book "Gas purification" includes content: Water as an absorbent for gas impurities; sulfur dioxide removal; sulfur recovery processes; liquid phase oxidation processes for hydrogen sulfide removal; control of nitrogen oxides.
531p
muasambanhan06
01-02-2024
4
2
Download
-
Nghiên cứu này tập trung vào mô phỏng các yếu tố ảnh hưởng đến quá trình cung cấp nhiên liệu biogas-hydrogen như là hàm lượng CH4 trong biogas, hàm lượng hydrogen trong hỗn hợp, góc đóng bướm ga từ đó xây dựng giản đồ phun cơ bản nhiên liệu khí cho động cơ, tạo tiền đề để chế tạo hệ thống điều khiển thời gian phun nhiên liệu cho động cơ có khả năng sử dụng nhiên liệu khí linh hoạt.
5p
phuong798
26-12-2023
11
3
Download
-
This study investigates the ability of a self-fabricated bio-trickling filter using commercial polyurethane foam as bio-media for treatment of odor-causing gases (e.g., ammonia, hydrogen sulfide, and mercaptans) under different nitrogen loadings in gas and liquid phases.
19p
visystrom
22-11-2023
4
2
Download
-
Ebook Mechanical engineers’ handbook - Volume 4: Energy and power (Fourth Edition) – Part 2 includes contents: Chapter 17 combustion; chapter 18 gaseous fuels; chapter 19 liquid fossil fuels from petroleum; chapter 20 coals, lignite, and peat; chapter 21 clean power generation from coal; chapter 22 biofuels for transportation; chapter 23 solar energy measurements; chapter 24 geothermal resources and technology: introduction; chapter 25 pumps, fans, blowers, and compressors; chapter 26 gas turbines; chapter 27 wind power generation; chapter 28 cogeneration; chapter 29 hydrogen energy; chapte...
550p
haojiubujain03
09-08-2023
4
2
Download
-
We investigated the effect of bias voltage and carrier gas on the hydrogen sensing performance of tungsten oxide nanobeads. The tungsten oxide nanobeads were prepared by a template-assisted method followed by calcination.
7p
vispiderman
15-06-2023
4
2
Download
-
We analyzed 39 gas samples, including carbon dioxide, hydrocarbon gases C1–C4, hydrogen, and helium, in surface sediment from 19 gravity cores collected from the SW sub-basin of the East Vietnam Sea (EVS) using the headspace and vacuum degassing methods. Based on the result, we discussed the distribution and origin of gases in the southwest sub-basin EVS surface sediments.
26p
vicaptainmarvel
21-04-2023
5
3
Download
-
Herein, a performance analysis of La-doped copper-based catalysts (CuO/ZrO2 /La-Al2 O3 ) in methanol steam reforming (MSR) was conducted and compared with a commercial low temperature water-gas shift catalyst (HiFUEL W220) to produce H2 with low CO selectivity. The physicochemical properties of as-obtained catalysts were characterized by N2 adsorption, XRD, and ICP-OES. Effect of calcination temperature (750 ℃ and 1000 ℃) on the properties of mixed oxide support (La-Al2 O3 ) were discussed based on catalytic activity.
12p
lyhuyenthu
31-01-2023
5
2
Download
-
"Germanene as potential material for sensor of toxic gases CO2, SO2, and CH4: A DFT study" show that gases of CO2, SO2, and CH4 are physically adsorbed on germanene via a charge transfer mechanism. The physisorption of these gas molecules on germanene opens a band gap at the Dirac point of germanene. The different adsorption behaviors of gas molecules on germanene provide a feasible way to extend germanene for gas sensors.
12p
lieuyeuyeu18
23-12-2022
10
4
Download
-
The hydrogen behavior in a nuclear containment vessel is one of the significant issues raised when discussing the potential of hydrogen combustion during a severe accident. Computational Fluid Dynamics (CFD) is a powerful tool for better understanding the turbulence transport behavior of a gas mixture, including hydrogen.
14p
vironald
15-12-2022
12
5
Download
-
The analyses of hypothetical accident scenario in various containment designs include the evaluation of the effectiveness of Passive Autocatalytic Recombiners (PARs), which are installed to mitigate the hydrogen risk, or are considered by utilities for retro-fitting the plants to implement revised regulatory requirements motivated by the Fukushima accident.
16p
vironald
15-12-2022
10
3
Download
-
The paper presents a new kind of stationary phase for gas chromatography based on deep eutectic solvents (DES) in the form of a mixture of L-proline (protonated with hydrochloric acid) as a hydrogen bond acceptor (HBA) and xylitol as a hydrogen bond donor (HBD) in a molar ratio of HBA:HBD 5:1.
8p
vironald
15-12-2022
4
2
Download
-
Trong hệ thống năng lượng tái tạo hybrid năng lượng mặt trời-sinh khối, việc cung cấp nhiên liệu cho động cơ đánh lửa cưỡng bức cần được điều chỉnh một cách linh hoạt để thích nghi với thành phần syngas-biogas-hydrogen thay đổi trong phạm vi rộng. Bài viết trình bày mô phỏng quá trình cung cấp nhiên liệu linh hoạt syngas-biogas-hydrogen cho động cơ tĩnh tại đánh lửa cưỡng bức.
7p
visaleen
31-10-2022
25
3
Download
-
The photocatalytic hydrogen production of TiO2 is limited by the rapid rate charge recombination. The co-operation of CuxO (CuO or Cu2O) and TiO2 is an effective method to overcome this drawback. In this study, the CuxO/TiO2 composite structure is fabricated by hydrothermal method and chemical deposition technique.
8p
viaudi
04-08-2022
5
1
Download
CHỦ ĐỀ BẠN MUỐN TÌM
![](images/graphics/blank.gif)