Grass-like Co2P superstructures: direct synthesis between elements, forming mechanism and catalytic properties

RSC Advances ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 5154-5160 ◽  
Author(s):  
Hao Wu ◽  
Yonghong Ni ◽  
Feng Hong ◽  
Dican Lu ◽  
Yanling Xiao
Keyword(s):  
Catalytic Properties ◽  
Direct Synthesis ◽  
Direct Reaction ◽  
Forming Mechanism ◽  
Catalytic Performances

Grass-like Co2P superstructures with good catalytic performances were successfully prepared through a direct reaction between elements route.

Pt-porous ZnO nanoribbon hybrid materials with enhanced catalytic performances

CrystEngComm ◽  
2015 ◽  
Vol 17 (8) ◽  
pp. 1765-1768 ◽  
Author(s):  
Zhiqiang Cheng ◽  
Mingyue Yu ◽  
Guixia Yang ◽  
Lijuan Kang
Keyword(s):  
Photocatalytic Degradation ◽  
Co Oxidation ◽  
Hybrid Materials ◽  
Catalytic Properties ◽  
Seeded Growth ◽  
Hybrid Nanomaterial ◽  
Growth Method ◽  
Catalytic Applications ◽  
Catalytic Performances

With the help of bio-molecule l-lysine, a seeded growth method has been developed and Pt–ZnO porous nanoribbons have been successfully obtained. For the catalytic applications of CO oxidation and the photocatalytic degradation of MO, the hybrid nanomaterial exhibits remarkably enhanced catalytic properties.

Direct synthesis of high-silica nano ZSM-5 aggregates with controllable mesoporosity and enhanced catalytic properties

RSC Advances ◽  
2016 ◽  
Vol 6 (101) ◽  
pp. 99129-99138 ◽  
Author(s):  
Hongyao Li ◽  
Yaquan Wang ◽  
Fanjun Meng ◽  
Hengbao Chen ◽  
Chao Sun ◽  
...  
Keyword(s):  
Catalytic Properties ◽  
Direct Synthesis ◽  
High Silica

In the absence of additional mesoporous template, high-silica nano-sized ZSM-5 aggregates have been rapidly synthesized by solid-like state conversion.

Understanding the impact of one-dimensional pore containing 10MR and 12MR and aluminium content on MTH reaction pathways: direct synthesis of heteroatom containing UZM-55

2020 ◽  
Vol 10 (3) ◽  
pp. 726-735
Author(s):  
Melissa M. Galey ◽  
Mark A. Miller ◽  
Mary Lanuza ◽  
Sesh Prabhakar ◽  
Christopher P. Nicholas
Keyword(s):  
Pore Structure ◽  
Catalytic Properties ◽  
Direct Synthesis ◽  
Reaction Pathways ◽  
Aluminium Content ◽  
One Dimensional ◽  
The Impact

We directly synthesized one-dimensional zeolite UZM-55 as an aluminosilicate and catalyzed MTH to understand pore structure influence on catalytic properties.

scholarly journals Enhanced Direct Dimethyl Ether Synthesis from CO2-Rich Syngas with Cu/ZnO/ZrO2 Catalysts Prepared by Continuous Co-Precipitation

Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 816
Author(s):  
Sabrina Polierer ◽  
David Guse ◽  
Stefan Wild ◽  
Karla Herrera Delgado ◽  
Thomas N. Otto ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Catalytic Properties ◽  
Direct Synthesis ◽  
Copper Surface ◽  
Precipitation Method ◽  
Dme Synthesis ◽  
Surface Areas ◽  
Dimethyl Ether Synthesis ◽  
Material Homogeneity ◽  
Co Precipitation

The manufacturing of technical catalysts generally involves a sequence of different process steps, of which co-precipitation is one of the most important. In this study, we investigate how continuous co-precipitation influences the properties of Cu/ZnO/ZrO2 (CZZ) catalysts and their application in the direct synthesis of dimethyl ether (DME) from CO2/CO/H2 feeds. We compare material characteristics investigated by means of XRF, XRD, N2 physisorption, H2-TPR, N2O-RFC, TEM and EDXS as well as the catalytic properties to those of CZZ catalysts prepared by a semi-batch co-precipitation method. Ultra-fast mixing in continuous co-precipitation results in high BET and copper surface areas as well as in improved metal dispersion. DME synthesis performed in combination with a ferrierite-type co-catalyst shows correspondingly improved productivity for CZZ catalysts prepared by the continuous co-precipitation method, using CO2-rich as well as CO-rich syngas feeds. Our continuous co-precipitation approach allows for improved material homogeneity due to faster and more homogeneous solid formation. The so-called “chemical memory” stamped during initial co-precipitation is kept through all process steps and is reflected in the final catalytic properties. Furthermore, our continuous co-precipitation approach may be easily scaled-up to industrial production rates by numbering-up. Hence, we believe that our approach represents a promising contribution to improve catalysts for direct DME synthesis.

2H → 1T Phase Change in Direct Synthesis of WS2 Nanosheets via Solution-Based Electrochemical Exfoliation and Their Catalytic Properties

2017 ◽  
Vol 9 (31) ◽  
pp. 26350-26356 ◽  
Author(s):  
Shi Xuan Leong ◽  
Carmen C. Mayorga-Martinez ◽  
Xinyi Chia ◽  
Jan Luxa ◽  
Zdeněk Sofer ◽  
...  
Keyword(s):  
Phase Change ◽  
Catalytic Properties ◽  
Direct Synthesis ◽  
Electrochemical Exfoliation ◽  
Ws2 Nanosheets

Understanding alloy structure and composition in sinter-resistant AgPd@SiO2 encapsulated catalysts and their effect on catalytic properties

2017 ◽  
Vol 41 (23) ◽  
pp. 14652-14658 ◽  
Author(s):  
Sourik Mondal ◽  
Thattarathody Rajesh ◽  
Basab B. Dhar ◽  
Markus Snellman ◽  
Junjie Li ◽  
...  
Keyword(s):  
Particle Size ◽  
Alloy Composition ◽  
Catalytic Properties ◽  
Alloy Structure ◽  
Precursor Particle ◽  
Encapsulated Catalysts ◽  
Catalytic Performances

Effects of precursor particle size, extent of alloying and alloy composition on AgPd@SiO2 catalytic performances.

scholarly journals Structural, electronic and catalytic performances of single-atom Fe stabilized by divacancy-nitrogen-doped graphene

RSC Advances ◽  
2017 ◽  
Vol 7 (13) ◽  
pp. 7920-7928 ◽  
Author(s):  
Zhiyong Liu ◽  
Tingwei He ◽  
Kaikai Liu ◽  
Weiguang Chen ◽  
Yanan Tang
Keyword(s):  
First Principles ◽  
Catalytic Properties ◽  
Single Atom ◽  
First Principles Calculations ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Catalytic Performances

The geometric, electronic and catalytic properties of a single-atom Fe embedded GN4 sheet (Fe–GN4) were systematically studied using first-principles calculations.

Precisely modulating the surface sites on atomically monodispersed gold-based nanoclusters for controlling their catalytic performances

Nanoscale ◽  
2020 ◽  
Vol 12 (35) ◽  
pp. 18004-18012
Author(s):  
Yongnan Sun ◽  
Xinglian Cheng ◽  
Yuying Zhang ◽  
Ancheng Tang ◽  
Xiao Cai ◽  
...  
Keyword(s):  
Catalytic Properties ◽  
Surface Sites ◽  
Catalytic Performances

The catalytic properties of atomically precise gold-based nanoclusters can be tailored by precisely modulating the surface sites on the nanoclusters.

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