Universiti Teknologi Petronas

About: Universiti Teknologi Petronas is a education organization based out in Ipoh, Malaysia. It is known for research contribution in the topics: Adsorption & Ionic liquid. The organization has 6127 authors who have published 11284 publications receiving 119400 citations.

Bio-based liquid fuels as a source of renewable energy: A review

Abstract: Limited availability of fossil fuels and their associated environmental impact during combustion remains the primary basis for exploring alternative energy sources such as bio-based liquid fuels. Several feedstocks have been used to produce biofuels for different applications with their own pros and cons. For instance, production of bio-fuels using human food chain raw materials such as corn, soy, peanut, and sugarcane are receiving increased criticism due to the competing demands of the same sources for human consumption as food. However, the non-food biomass in the form of agricultural wastes, municipal wastes, waste vegetable oil, and microbial sources are abundantly available that can be utilized as feedstock for production of biofuels. Because of this reason, most biofuels have been produced using the feedstocks that do not affect the food chain. Thus, in this work, the feedstocks of different generation biofuels and their potential yield and associated greenhouse gas emissions, production technologies are critically surveyed. Moreover, the application of biofuels for different purposes are analyzed and compared with their corresponding conventional fuels. The survey also points out the recent issues and challenges of biofuels with their resolution. The future research directions are suggested to sustain biofuel production.

Pseudocapacitive Charge Storage in Single-Step-Synthesized CoO–MnO2–MnCo2O4 Hybrid Nanowires in Aqueous Alkaline Electrolytes

Abstract: A new pseudocapacitive combination, viz. CoO-MnO2–MnCo2O4 hybrid nanowires (HNWs), is synthesized using a facile single-step hydrothermal process, and its properties are benchmarked with conventional battery-type flower-shaped MnCo2O4 obtained by similar processing. The HNWs showed high electrical conductivity and specific capacitance (Cs) (1650 F g–1 or 184 mA h g–1 at 1 A g–1) with high capacity retention, whereas MnCo2O4 nanoflower electrode showed only one-third conductivity and one-half of its capacitance (872 F g–1 or 96 mA h g–1 at 1 A g–1) when used as a supercapacitor electrode in 6 M KOH electrolyte. The structure–property relationship of the materials is deeply investigated and reported herein. Using the HNWs as a pseudocapacitive electrode and commercial activated carbon as a supercapacitive electrode we achieved battery-like specific energy (Es) and supercapacitor-like specific power (Ps) in aqueous alkaline asymmetric supercapacitors (ASCs). The HNWs ASCs have shown high Es (90 Wh kg–1) (vol...

Industry Revolution IR 4.0: Future Opportunities and Challenges in Construction Industry

Abstract: The future of construction industry development is the approach of the component-industrialization, the construction-breakdown, design-identical, construction-assembled, operation-data technique to maximize the life cycle value. This paper presents a general idea of Industrial Revolution (IR) 4.0 with the introduction descriptions of important aspects in Construction Industry (CI) development. The aim is to define and show possible research areas connected with the IR 4.0 into the CI. For this purpose, an analysis was made, based on the most recent literature, to point out actual needs in the CI in terms of its evolution into IR 4.0 level. It is shown that multidiscipline approaches are not investigated to create special rules, procedures and methods and know-how designed for introducing the principles of IR 4.0 in the CI. A popular from stakeholders in the CI understand how digitization is affecting each part of their trade, however, its practical applications are still in infancy stage. IR 4.0 concepts should be combined with construction production, novel expertise must be applied to the intellectual engineering of modern construction, enhance the level of incorporation, to achieve the sustainable development.