Freddy Marpaung

RESEARCH INTERESTS

nanotechnology, metal casting, energy efficiency & conservation, modeling, and simulation in engineering.

Scopus Publications

Materials selection for low-cost manufacturing of electric motorcycle platform by using Finite Element Method (FEM) evaluation and Digital Logic Method (DLM)
Lambert Hotma, Harry Purnama, Endra Dwi Purnomo, Arifin, Nasril, Muizuddin Azka, Wahyu Sulistiyo, Mustasyar Perkasa, Freddy Marpaung, Eko Agus Nugroho,et al.
AIP Publishing



Gram-scale synthesis of bimetallic ZIFs and their thermal conversion to nanoporous carbon materials
Freddy Marpaung, Teahoon Park, Minjun Kim, Jin Woo Yi, Jianjian Lin, Jie Wang, Bing Ding, Hyunsoo Lim, Konstantin Konstantinov, Yusuke Yamauchi,et al.
MDPI AG
The hybrid metal-organic frameworks (MOFs) with different Zn2+/Co2+ ratios are synthesized at room temperature with deionized water as the solvent. This use of deionized water can increase the yield of hybrid MOFs (up to 65–70%). After the pyrolysis, the obtained nanoporous carbons (NPCs) show a decrease in the surface area, in which the highest surface area is 655 m2 g−1. The as-prepared NPCs are subjected to activation with KOH in order to increase their surface area and convert cobalt nanoparticles (Co NPs) to Co oxides. These activated carbons are applied to electrical double-layer capacitors (EDLCs) and pseudocapacitors due to the presence of CoO and Co3O4 nanoparticles in the carbon framework, leading to significantly enhanced specific capacitance as compared to that of pristine NPCs. This synthetic method can be utilized in future research to enhance pseudocapacitance further while maintaining the maximum surface area of the carbon materials.


Metal–Organic Framework (MOF)-Derived Nanoporous Carbon Materials
Freddy Marpaung, Minjun Kim, Junayet Hossain Khan, Konstantin Konstantinov, Yusuke Yamauchi, Md. Shahriar A. Hossain, Jongbeom Na, and Jeonghun Kim
Wiley
Metal-organic framework (MOF)-derived nanoporous carbon materials have attracted significant interest due to their advantages of controllable porosity, good thermal/chemical stability, high electrical conductivity, catalytic activity, easy modification with other elements and materials, etc. Thus, MOF-derived carbons have been used in numerous applications, such as environmental remediations, energy storage systems (i.e. batteries, supercapacitors), and catalysts. To date, many strategies have been developed to enhance the properties and performance of MOF-derived carbons. Herein, we introduce and summarize recent important approaches for advanced MOF-derived carbon structures with a focus on precursor control, heteroatom doping, shape/orientation control, and hybridization with other functional materials.


Jute-derived microporous/mesoporous carbon with ultra-high surface area using a chemical activation process
Junayet Hossain Khan, Freddy Marpaung, Christine Young, Jianjian Lin, Md Tofazzal Islam, Saad M. Alsheri, Tansir Ahamad, Norah Alhokbany, Katsuhiko Ariga, Lok Kumar Shrestha,et al.
Elsevier BV
Abstract Here, we report the synthesis of nanoporous carbons (NCs) derived from a low-cost and renewable biomass, jute, by a chemical activation process using KOH. Jute is one of the least expensive and most abundant crops, with a staggering 2.8 million metric tons of jute produced each year. In this study, we synthesize NCs from three different parts of jute fibers through a chemical activation technique using KOH. The NCs prepared from the bottom portion of the fiber show a high surface area (2682 m2 g−1) with the presence of both micropores and mesopores. The ultra-high surface area of jute makes it an economically viable, environmentally friendly precursor for NCs, with a wide variety of applications from energy storage to environmental and biomedical applications.