Deltin 7

Deltin 7

Deltin 7 Aviator গেম টাকা ইনকাম of Barishal

বরিশাল বিশ্ববিদ্যালয়

Article

Sl. Details
271 Dr. Apurba Roy , Impact of extratropical cyclones, floods, and wildfires on firms’ financial performance in New Zealand Environmental Economics and Policy Studies ,04 May 2023
272 Dr. Apurba Roy , Income and floods in New Zealand Environmental Hazards ,10 Nov 2022
273 Dr. Apurba Roy , Impact of agriculture extension services on technical efficiency of rural paddy farmers in southwest Bangladesh Environmental Challenges ,02 Sep 2025
274 Dr. Apurba Roy , Sudipa Basu , Determinants of Livelihood Diversification Under Environmental Change in Coastal Community of Bangladesh Asia-Pacific Journal of Rural Development ,26 Aug 2025
275 Dr. Apurba Roy , Income and extratropical cyclones in New Zealand Journal of Environmental Management ,14 Mar 2022
276 Dr. Apurba Roy , Assessing socioeconomic vulnerability of cyclone remal-affected coastal communities in Bangladesh Natural Hazards ,05 Dec 2024
277

Abstract: In this article modeling of  of hydrogen on Pd (1 1 1) surface by ultra-accelerated quantum chemical  (UA-QCMD) was reported for the better understanding of the role of hydrogen vacancy for the dissociative adsorption of hydrogen. Here we have demonstrated and examined the isolated steps of hydrogen dissociative adsorption on Pd (1 1 1) surface. The direct observations of dissociative adsorption of hydrogen on Pd (1 1 1) surface (different vacancy models) were successfully simulated. From the analysis of the change of electronic structures and the dynamics of dissociative , we can conclude that divacancy sites are inactive for dissociative adsorption of hydrogen on Pd (1 1 1) surface. Our findings suggest that H2 dissociation on Pd (1 1 1) requires an ensemble of at least three hydrogen vacancies.


278

Applied Surface Science (Elsevier)  Rank =Q1,  IF= 7.21 

Abstract:

 plays an important role in catalysis, due to its ability to store and release oxygen depending on the condition present in the catalyst environment. To analyze the role of ceria in , it is necessary to know the details of the interaction of ceria surface with environmentally sensitive molecules. This study was conducted using ultra accelerated quantum chemical . Its purpose was to investigate the reduction process of the (1 1 1) and (1 1 0) surfaces of ceria with atomic hydrogen as well as water desorption mechanisms from the surfaces. This simulation demonstrated that when a high-energy colliding  are adsorbed on the ceria, it pulls up an O atom from the ceria surfaces and results in the formation of a H2O molecule. This is the first dynamics simulation related to such reduction processes based on .
279

Journal:Applied Surface Science (Elsevier) , Rank =Q1, IF= 7.21 

Abstract:
Ultra accelerated quantum chemical  (UA-QCMD) was used to study the dynamics of the hydrogen spillover process on Pt/CeO2  for the first time. The direct observation of  of hydrogen on Pt/CeO2 catalyst surface as well as the diffusion of dissociative hydrogen from the Pt/CeO2 catalyst surface was simulated. The diffusion of the  in the gas phase explains the high reactivity observed in the hydrogen spillover process. , change of adsorption states and structural changes were investigated. It was observed that parallel adsorption of hydrogen facilitates the dissociative adsorption leading to hydrogen desorption. Impact with perpendicular adsorption of hydrogen causes the  on the surface, which decelerates the hydrogen spillover. The present study also indicates that the CeO2 support has strong interaction with Pt catalyst, which may cause an increase in Pt activity as well as enhancement of the  dispersions and hence increasing the rate of hydrogen spillover reaction.
280

Journal: Journal of Physical Chemistry C, Rank= Q1, IF= 3.2

Abstract:Ceria has attracted intensive interest in the past decade because of its vital role in emerging technologies for exhaust gas purification in automobiles. In this study, we have investigated the process of conversion of CO to CO2 via the creation of an oxygen vacancy on the ceria surface. The study was conducted using a new ultra accelerated quantum chemical molecular dynamics method. Through this simulation, we have demonstrated that a high-energy colliding CO molecule is adsorbed on the ceria, pulling up an O atom from the ceria surface to form a CO2 molecule. This molecular dynamics simulation of CO oxidation has been carried out for the first time using quantum chemical methods.