scholarly journals How Surface Species Drive Product Distribution during Ammonia Oxidation: An STM and Operando APXPS Study

ACS Catalysis ◽  
2021 ◽  
pp. 8261-8273
Author(s):  
Oleksii Ivashenko ◽  
Niclas Johansson ◽  
Christine Pettersen ◽  
Martin Jensen ◽  
Jian Zheng ◽  
...  
Keyword(s):  
Ammonia Oxidation ◽  
Product Distribution ◽  
Surface Species

Surface Species and Product Distribution in the Electrooxidation of Small Organic Molecules

2019 ◽  
Vol 25 (1) ◽  
pp. 259-269 ◽  
Author(s):  
Martin Heinen ◽  
Zenonas Jusys ◽  
R. Jürgen Behm
Keyword(s):  
Organic Molecules ◽  
Product Distribution ◽  
Surface Species ◽  
Small Organic Molecules

Use of thermomechanical pulp fibers from waste woods for making eco-friendly cushioning material

TAPPI Journal ◽  
2010 ◽  
Vol 9 (7) ◽  
pp. 15-21 ◽  
Author(s):  
JI-YOUNG LEE ◽  
CHUL-HWAN KIM ◽  
JEONG-MIN SEO ◽  
HO-KYUNG CHUNG ◽  
KYUNG-KIL BACK ◽  
...  
Keyword(s):  
Impact Test ◽  
Product Distribution ◽  
Expanded Polystyrene ◽  
Thermomechanical Pulp ◽  
Fiber Structure ◽  
Pulp Fibers ◽  
Cationic Starch ◽  
Thermal Insulating ◽  
Surface Sizing ◽  
The Impact

Eco-friendly cushioning materials were made with thermomechanical pulps (TMPs) from waste woods collected from local mountains in Korea, using a suction-forming method without physical pressing. The TMP cushions had superior shock-absorbing performance, with lower elastic moduli than expanded polystyrene (EPS) or molded pulp. Even though the TMP cushions made using various suction times had many voids in their inner fiber structure, their apparent densities were a little higher than that of EPS and much lower than that of molded pulp. The addition of cationic starch contributed to an increase in the elastic modulus of the TMP cushions without increasing the apparent density, an effect which was different from that of surface sizing with starch. In the impact test, the TMP cushions showed a more ductile pattern than the brittle EPS. The porosity of the TMP cushion was a little less than that of EPS and much greater than that of molded pulp. The porous structure of the TMP cushions contributed to their excellent thermal insulating capacity, which was equivalent to that of EPS. In summary, the TMP packing cushions showed great potential for surviving external impacts during product distribution.

An NBO-TS predictive approach for torquoselectivity of ring opening in 3-substituted cyclobutenes

2017 ◽  
Author(s):  
Arpita Yadav ◽  
Dasari L V K Prasad ◽  
Veejendra Yadav
Keyword(s):  
Transition State ◽  
Ring Opening ◽  
Natural Bond Orbital ◽  
Theoretical Calculations ◽  
Lone Pair ◽  
Product Distribution ◽  
Acceptor Substituent ◽  
Important Contributor ◽  
Predictive Approach ◽  
Donor Substituent

<p>The torquoselectivity, the inward or outward ring opening of 3-substituted cyclobutenes, is conventionally guided by the donor and/or acceptor ability of the substituent (S). It is typically predicted by estimating the respective ring opening transition state (TS) barriers. While there is no known dissent in regard to the outward rotation of electron-rich substituents from the approaches of TS calculations, the inward rotation was predicted for some electron-accepting substituents and outward for others. To address this divergence in predicting the torquoselectivity, we have used reliable orbital descriptors through natural bond orbital theoretical calculations and demonstrated that (a) interactions <i>n</i><i><sub>S</sub></i>→s*<sub>C3C4</sub> for a lone pair containing substituent, s<sub>S</sub>→s*<sub>C3C4</sub> for a s-donor substituent, s<sub>C3C4</sub>→p*<sub>S</sub> for a resonance-accepting substituent and s<sub>C3C4</sub>→s*<sub>S</sub> for a s-acceptor substituent constitute the true electronic controls of torquoselectivity, and (b) reversibility of the ring opening event is an additional important contributor to the observed product distribution.</p>

Penerbitan buku ilmiah daring berbasis open monograph press (OMP)

2020 ◽  
Vol 16 (2) ◽  
pp. 155-169
Author(s):  
Dhevi Enlivena Irene Restia Mahelingga
Keyword(s):  
Book Publishing ◽  
Scientific Publication ◽  
Product Distribution ◽  
Qualitative Approach ◽  
Primary Data ◽  
Access To Information ◽  
Online Publishing ◽  
Publishing Process ◽  
Publication Process ◽  
Academic Publications

Introduction. There has been limited discussion on Open Monograph Press (OMP) although its  potential is recognized to support academic publications in Indonesia. This is due to the lack of access to information and dissemination of OMP by academic publishers that have implemented OMP in their publication process. Data Collection Method. This paper used a qualitative approach by starting the elaboration publication process in Lembaga Ilmu Pengetahuan Indonesia (LIPI) Press. This paper examined how OMP-based online publishing system is able to accommodate book publishing process in LIPI Press. Primary data in this study was collected through records of the user interface of the online page of LIPI Press which uses OMP. Data Analysis. The data was analyzed by using  a descriptive-analytic approach. Results and Discussions. OMP is useful not only to accommodate all roles and processes of scientific publication but also to accommodate the publisher's need for a catalog website. OMP metadata can be indexed by Google Scholar and can be a helpful tool for product distribution. Conclusion. OMP is suggested to become a standard in publication process.

Novel Products in the CO2-Laser Induced Reaction of Trichloroethylene

1995 ◽  
Vol 60 (1) ◽  
pp. 104-114 ◽  
Author(s):  
Boyd L. Earl ◽  
Richard L. Titus
Keyword(s):  
Irradiation Time ◽  
Product Distribution ◽  
Incident Power ◽  
Cell Geometry ◽  
Reaction Conditions ◽  
Peak Areas ◽  
Induced Decomposition ◽  
Nmr Methods ◽  
Induced Reaction ◽  
Novel Products

Previous reports on the thermal or CO2-laser induced decomposition of trichloroethylene have identified only one condensible product, hexachlorobenzene (in addition to HCl and mono- and dichloroacetylene). We have found that trichloroethylene vapor exposed to cw irradiation on the P(24) line of the (001 - 100) band of the CO2 laser at incident power levels from 8 - 17 W produces numerous products, of which the 13 major ones have been identified using IR, GC/MS, GC/FTIR, and NMR methods. All of these products have 4, 6, or 8 carbons, are highly unsaturated, and are completely chlorinated or contain a single hydrogen. C4HCl5 and C6Cl6 isomers (three of each) account for S 55% to 85% of total products (based on peak areas in the total ion chromatograms in GC/MS runs), depending on reaction conditions. In addition to characterizing the products, we discuss the dependence of the product distribution on laser power, irradiation time, and cell geometry, and we outline a possible mechanism.

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