نتایج جستجو برای: nanoporous graphene

تعداد نتایج: 55192  

2016
Yanmei Yang Weifeng Li Hongcai Zhou Xiaoming Zhang Mingwen Zhao

Water scarcity represents one of the most serious global problems of our time and challenges the advancements in desalination techniques. Although water-filtering architectures based on graphene have greatly advanced the approach to high performance desalination membranes, the controlled-generation of nanopores with particular diameter is tricky and has stunted its wide applications. Here, thro...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مراغه - دانشکده علوم پایه 1393

در این کار، ما کاتالیست pt-sn/graphene را برای اکسیداسیون اتانول در محیط اسیدی، گزارش کرده ایم. گرافن، با استفاده از محلول مایع یونی و لایه برداری الکتروشیمیایی الکترودهای گرافیت سنتز شد. سپس کاتالیست های pt-sn بر پایه گرافن به وسیله اتیلن گلیکول، که به عنوان عامل تثبیت کننده استفاده می شود، احیا شدند تا نانو ذرات ptsn با پخش شدگی بالا بر روی صفحات گرافن تهیه شوند و در اکسیداسیون اتانول در پیل ...

Journal: :Computational Materials Science 2021

We have explored the role of pore width, specific surface area, and conductivity nanoporous carbons on their adsorption capacity CO2, CH4, N2. Graphene sheets with a width 7.35 Å (522.65 m2/g) activated carbon (2445.38 been generated using user-written code Hybrid Reverse Monte Carlo (HRMC) algorithm. numerically shown that graphene enhance gas separation properties, i.e., CO2 CH4 from N2 in bi...

Journal: :International Journal of Hydrogen Energy 2021

The hydrogen storage capacities of nanoporous carbons, simulated as graphene slit-shaped pores, have been calculated using simple theoretical methods that do not involve computationally expensive calculations. calculate the molecules on a solid porous material by Equation Of State, EOS, gas and interaction potential energy H2 with surfaces pores material. Calculations carried out same empirical...

Journal: :Advanced Functional Materials 2021

During the last decade, on-surface fabricated graphene nanoribbons (GNRs) have gathered enormous attention due to their semiconducting π-conjugated nature and atomically precise structure. A significant breakthrough is recent fabrication of nanoporous (NPG) as a 2D array laterally bonded GNRs. This covalent integration GNRs could enable complex electronic functionality at nanoscale; however, fo...

Journal: :Journal of Membrane Science 2021

High-permeance, molecular-sieving, nanoporous single-layer graphene (NSLG) membranes are highly promising for gas separation. However, the formation of cracks during transfer NSLG to a low-cost porous support is difficult avoid. These detrimental selectivity, and therefore, make scale-up gas-sieving challenging. To mitigate crack on macroporous supports, herein, we demonstrate mechanical reinfo...

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