Institution
China University of Petroleum
Education•Beijing, China•
About: China University of Petroleum is a education organization based out in Beijing, China. It is known for research contribution in the topics: Catalysis & Oil shale. The organization has 39802 authors who have published 39151 publications receiving 483760 citations. The organization is also known as: Zhōngguó Shíyóu Dàxué & China University of Petroleum (Beijing).
Topics: Catalysis, Oil shale, Adsorption, Fracture (geology), Source rock
Papers published on a yearly basis
Papers
More filters
••
TL;DR: In this article, porous carbons for CO2 capture at low pressures were prepared by KOH activation of rice husk char, and the CO2 uptakes at 0.1 bar (0.°C) reached 2.11mmol/g.
136 citations
••
TL;DR: Its ultra-high stability confirms that the stable active sites and nanostructures of A-VS/NixSy/NF are derived from ISCA, which may be a facile and promising method to obtain efficient electrocatalysts in alkaline HER.
Abstract: In situ cathodic activation (ISCA) of V-incorporated NixSy nanowires supported on nickel foam (VS/NixSy/NF) can be realized in an alkaline hydrogen evolution reaction (HER) process, which provides not only clearly enhanced activity but also ultrahigh stability for HER. The ISCA process is continuous linear sweep voltammetry (LSV) on VS/NixSy/NF as a cathodic electrode with gradually enhanced HER activity. The activated VS/NixSy/NF (A-VS/NixSy/NF) demonstrates enhanced HER activity with an overpotential of 125 mV to drive 10 mA cm−2, which is much lower than that of other samples. It may be predicted that the ISCA-derived amorphous VOOH film covering on A-VS/NixSy/NF accelerates the HER process, and NiOOH may protect active sites from decaying, leading to excellent activity and structural stability. However, for single metal sulfides, the ISCA process of nickel or vanadium sulfides is not available, implying that the synergistic effect between Ni and V of VS/NixSy/NF may be the key to drive ISCA in alkaline HER. In addition, its ultra-high stability confirms that the stable active sites and nanostructures of A-VS/NixSy/NF are derived from ISCA. Therefore, the ISCA of V-incorporated transition metal sulfides in the alkaline HER process may be a facile and promising method to obtain efficient electrocatalysts.
135 citations
••
TL;DR: In this article, the recast layers of a surface machined by sinking EDM using water-in-oil (W/O) emulsion as dielectric were analyzed using scanning electron microscopy, X-ray diffraction, energy dispersive spectrograph (EDS), and micro hardness analysis.
135 citations
••
TL;DR: In this paper, the preparation, characterization, and application of perovskite oxides in heterogeneous catalysis is discussed. But the authors focus on the preparation and characterization of materials with desired textural structure and physicochemical properties.
Abstract: Perovskite oxides with formula ABO3 or A2BO4 are a very important class of functional materials that exhibit a range of stoichiometries and crystal structures. Because of the structural features, they could accommodate around 90% of the metallic natural elements of the Periodic Table that stand solely or partially at the A and/or B positions without destroying the matrix structure, offering a way of correlating solid state chemistry to catalytic properties. Moreover, their high thermal and hydrothermal stability enable them suitable catalytic materials either for gas or solid reactions carried out at high temperatures, or liquid reactions carried out at low temperatures. In this review, we addressed the preparation, characterization, and application of perovskite oxides in heterogeneous catalysis. Preparation is an important issue in catalysis by which materials with desired textural structure and physicochemical property could be achieved; characterization is the way to explore and understand the textura...
135 citations
••
TL;DR: In this paper, the effects of liquid nitrogen cooling on rock pore structure, sandstone, marble, and shale samples were examined before and after treatment using scanning electron microscopy and nuclear magnetic resonance.
135 citations
Authors
Showing all 40138 results
Name | H-index | Papers | Citations |
---|---|---|---|
Lei Jiang | 170 | 2244 | 135205 |
Shi-Zhang Qiao | 142 | 523 | 80888 |
Jian Zhou | 128 | 3007 | 91402 |
Tao Zhang | 123 | 2772 | 83866 |
Jian Liu | 117 | 2090 | 73156 |
Qiang Yang | 112 | 1117 | 71540 |
Jianjun Liu | 112 | 1040 | 71032 |
Ju Li | 109 | 623 | 46004 |
Peng Wang | 108 | 1672 | 54529 |
Alan R. Fersht | 108 | 400 | 33895 |
Jian Zhang | 107 | 3064 | 69715 |
Wei Liu | 102 | 2927 | 65228 |
Xiaoming Sun | 96 | 382 | 47153 |
Haibo Zeng | 94 | 604 | 39226 |
Chao Wang | 91 | 561 | 32854 |