scholarly journals Towards an object-oriented design of active hydrogen evolution catalysts on single-atom alloys

2021 ◽  
Author(s):  
Chuan Zhou ◽  
Jiayue Zhao ◽  
Peng Fei Liu ◽  
Jian-Fu Chen ◽  
Sheng Dai ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Hydrogen Evolution ◽  
Object Oriented ◽  
Single Atom ◽  
Active Hydrogen ◽  
Object Oriented Design ◽  
Single Atom Alloys

Given an oriented property, to locate the adequate material is always highly desired but very challenging in a range of applications including heterogeneous catalysis. Obviously, an object-oriented design/screening is an...

Copper-based single-atom alloys for heterogeneous catalysis

2021 ◽  
Author(s):  
Fengjuan Qin ◽  
Wenxing Chen
Keyword(s):  
Heterogeneous Catalysis ◽  
High Activity ◽  
Single Atom ◽  
Single Atom Alloys

Compared with traditional catalysts, copper-based SAAs have high activity and stability in heterogeneous catalysis due to their special structures and interactions.

scholarly journals UMA BREVE REVISÃO SOBRE A CATÁLISE POR ÁTOMOS ISOLADOS: CONCEITOS E APLICAÇÕES

Química Nova ◽  
2021 ◽  
Author(s):  
Luanne Ferreira ◽  
Ruan Ribeiro ◽  
Vinicius Madriaga ◽  
Sancler Vasconcelos ◽  
Eric Shimabukuro ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Homogeneous Catalysis ◽  
Industrial Revolution ◽  
Single Atom ◽  
Preparation Methods ◽  
High Exposure ◽  
Promising Alternative ◽  
Single Atoms ◽  
Catalytic Processes ◽  
Single Atom Alloys

A BRIEF OVERVIEW ON SINGLE-ATOM CATALYSIS: CONCEPTS AND APPLICATIONS. Catalytic processes became extremely important for the development of our society, especially after the second industrial revolution. Thus, the research for more efficient catalysts is an obstacle to overcome to achieve cheaper processes, higher yields, and selectivity of desired products. In this context, single-atom catalysis emerges as a promising alternative to unite the advantages of traditional homogeneous and heterogeneous catalysis. Catalysis by single-atoms is a bridge that unites in a single catalyst the ease of recovery and reuse (from heterogeneous catalysis) with the high exposure and uniformity of sites (from homogeneous catalysis). Thus, single-atom catalysts (SACs) and single-atom alloys (SAAs) have already found several applications in the literature, such as in hydrogenation, oxidation, conversion of biomass derivatives, electrocatalysis, and photocatalysis. However, it is essential to emphasize that it is still a field that is expanding and relatively new, with several opportunities and many barriers to surpass. In this review, concepts of homogeneous, enzymatic, and heterogeneous catalysis will be addressed, as well as fundamental aspects of single-atom catalysis, preparation methods, characterization, and current challenges.

Theoretical insights into TM@PHEs as single-atom catalysts for water splitting based on density functional theory

2021 ◽  
Author(s):  
Yongzhen Jiang ◽  
Wenxu Zou ◽  
Yadong Li ◽  
Yingxiang Cai
Keyword(s):  
Density Functional Theory ◽  
Heterogeneous Catalysis ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Density Functional ◽  
Environmental Issues ◽  
Single Atom ◽  
Energy Crisis ◽  
Functional Theory ◽  
New Frontier

Single-atom catalysis is the new frontier of heterogeneous catalysis, and have attracted considerable attention for they exhibit great potential in hydrogen evolution to mitigate energy crisis and environmental issues. The...

Rational prediction of multifunctional bilayer single atom catalysts for the hydrogen evolution, oxygen evolution and oxygen reduction reactions

Nanoscale ◽  
2020 ◽  
Vol 12 (39) ◽  
pp. 20413-20424
Author(s):  
Riming Hu ◽  
Yongcheng Li ◽  
Fuhe Wang ◽  
Jiaxiang Shang
Keyword(s):  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Single Atom ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions

Bilayer single atom catalysts can serve as promising multifunctional electrocatalysts for the HER, ORR, and OER.

Cardiological Database Management System as a Mediator to Clinical Decision Support

1996 ◽  
Vol 35 (01) ◽  
pp. 52-58 ◽  
Author(s):  
A. Mavromatis ◽  
N. Maglaveras ◽  
A. Tsikotis ◽  
G. Pangalos ◽  
V. Ambrosiadou ◽  
...  
Keyword(s):  
Management System ◽  
Database Management ◽  
Medical Information ◽  
Object Oriented ◽  
Medical Personnel ◽  
Database Management System ◽  
Ease Of Use ◽  
Medical Database ◽  
Analysis And Design ◽  
Object Oriented Design

AbstractAn object-oriented medical database management system is presented for a typical cardiologic center, facilitating epidemiological trials. Object-oriented analysis and design were used for the system design, offering advantages for the integrity and extendibility of medical information systems. The system was developed using object-oriented design and programming methodology, the C++ language and the Borland Paradox Relational Data Base Management System on an MS-Windows NT environment. Particular attention was paid to system compatibility, portability, the ease of use, and the suitable design of the patient record so as to support the decisions of medical personnel in cardiovascular centers. The system was designed to accept complex, heterogeneous, distributed data in various formats and from different kinds of examinations such as Holter, Doppler and electrocardiography.

scholarly journals Active hydrogen evolution on the plasma-treated edges of WTe2

APL Materials ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 061108
Author(s):  
Ning Ling ◽  
Shoujun Zheng ◽  
Yongjoon Lee ◽  
Mali Zhao ◽  
Eunah Kim ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Active Hydrogen

Addressing security for object-oriented design and Ada 95 development

1998 ◽  
Vol XVIII (2) ◽  
pp. 89-104 ◽  
Author(s):  
John A. Reisner ◽  
Steven A. Demurjian
Keyword(s):  
Object Oriented ◽  
Object Oriented Design ◽  
Ada 95
Sign in / Sign up

Export Citation Format

Share Document