Zobrazeno 1 - 10
of 557
pro vyhledávání: '"Won Chun-Oh"'
Autor:
Is Fatimah, Gani Purwiandono, Imam Sahroni, Suresh Sagadevan, Won Chun-Oh, Sheikh Ahmad Izaddin Sheikh Mohd Ghazali, Ruey-an Doong
Publikováno v:
South African Journal of Chemical Engineering, Vol 40, Iss , Pp 134-143 (2022)
This paper reports on the first case of the recyclable catalysts of ZnO/SiO2 prepared from salacca leaf ash as a source of silica for biodiesel production. The catalysts were prepared using a hydrothermal synthesis method, and the catalyst was utiliz
Externí odkaz:
https://doaj.org/article/11c2a6617fb042bf90d2e01b75a22f2d
Autor:
Aldino Javier Saviola, Karna Wijaya, Akhmad Syoufian, Wahyu Dita Saputri, Dita Adi Saputra, Ilyas Taufik Abdul Aziz, Won-Chun Oh
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 9, Iss , Pp 100653- (2024)
The objectives of this study were to determine the optimum phosphoric acid concentration that produces a PO4–ZrO2 catalyst with the best acidity and examine its performance in the catalytic hydroconversion of used palm cooking oil. The catalysts we
Externí odkaz:
https://doaj.org/article/cad60f9ec3054618ab576a17ec6892ad
Autor:
Yonrapach Areerob, Won-Chun Oh, Chaowalit Hamontree, Theeranuch Nachaithong, Supinya Nijpanich, Kongsak Pattarith
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract A novel tungsten disulfide-molybdenum copper oxide composite supported with graphene quantum dots (WM@GQDs) has been synthesized as a counter electrode (CE) for dye-sensitized solar cells (DSSCs) using a simple and low-cost ultrasonication m
Externí odkaz:
https://doaj.org/article/d19e9500150443719ae3757aa129b734
Publikováno v:
Nanomaterials, Vol 14, Iss 1, p 11 (2023)
Gas-sensing technology has witnessed significant advancements that have been driven by the emergence of graphene quantum dots (GQDs) and their tailored nanocomposites. This comprehensive review surveys the recent progress made in the construction met
Externí odkaz:
https://doaj.org/article/06ce114bb3e04dd3a7c3e593bf9b73aa
Autor:
Adyatma Bhagaskara, Dita Adi Saputra, Aldino Javier Saviola, Karna Wijaya, Won-Chun Oh, Sri Rahayu, Muhammad Dikdik Gumelar, Aghni Ulma Saudi, Agustanhakri Agustanhakri, Abdul Hamid Budiman, Surat Indrijarso
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 10, Iss , Pp 100844- (2024)
Nickel-manganese-cobalt (NMC) is a type of cathode material widely used in lithium-ion batteries (LiBs). It performs well on high energy density and thermal stability, but after several charged-discharged cycles, its capacity significantly degrades a
Externí odkaz:
https://doaj.org/article/9297717869034d0db7d1fed2273b75e0
Autor:
Is Fatimah, Rahmania Audita, Gani Purwiandono, Habibi Hidayat, Suresh Sagadevan, Won-Chun Oh, Ruey-an Doong
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 10, Iss , Pp 100797- (2024)
A nanocomposite of hydroxyapatite-supported Ag3PO4 (Ag3PO4/HA) was prepared by in-situ co-precipitation followed by hydrothermal method by utilizing cockle (Anadara granosa) shell as biogenic calcium source. The obtained nanocomposite was characteriz
Externí odkaz:
https://doaj.org/article/ba0893bf479645848e77ae2eb4052a79
Autor:
Yonrapach Areerob, Chaowalit Hamontree, Phitchan Sricharoen, Nunticha Limchoowong, Supinya Nijpanich, Theeranuch Nachaithong, Won-Chun Oh, Kongsak Pattarith
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-11 (2022)
Abstract Novel MoWO4 with ZnO nanoflowers was synthesized on multi-walled carbon nanotubes (MW-Z@MWCNTs) through a simple hydrothermal method, and this unique structure was applied as a counter electrode (CE) for dye-sensitized solar cells (DSSC) for
Externí odkaz:
https://doaj.org/article/3245d3f7737640798d3f8dcf04762a11
Autor:
Suk Jekal, Minki Sa, Yeon-Ryong Chu, Chan-Gyo Kim, Jungchul Noh, Jiwon Kim, Ha-Yeong Kim, Won-Chun Oh, Zambaga Otgonbayar, Chang-Min Yoon
Publikováno v:
Gels, Vol 9, Iss 11, p 891 (2023)
The use of plate-like materials to induce a percolation gel-like effect in electrorheological (ER) fluids is sparsely documented. Hence, we dispersed plate-like materials, namely natural mica, synthetic mica, and glass, as well as their pulverized pa
Externí odkaz:
https://doaj.org/article/3a36a431de3c4b9a832a90f3d7690562
Autor:
Ha-Yeong Kim, Suk Jekal, Chan-Gyo Kim, Jungchul Noh, Jiwon Kim, Yeon-Ryong Chu, Zambaga Otgonbayar, Won-Chun Oh, Sang Hun Lee, Chang-Min Yoon
Publikováno v:
Materials, Vol 16, Iss 19, p 6454 (2023)
In this study, Al paper and cellulose acetate (CA) filters derived from heated tobacco waste were successfully converted into current collectors and active materials for a supercapacitor device. Typically, heated tobacco contains electrically discont
Externí odkaz:
https://doaj.org/article/600e06a1409543869c4befdf83052a02
Publikováno v:
Sustainable Energy & Fuels; 6/21/2024, Vol. 8 Issue 12, p2535-2569, 35p