This study highlights the role of voltage and magnetite (Fe3O4) nuclei in particle formation. 本研究では、電圧とマグネタイト（Fe3O4）核の役割に焦点を当てています。
Tag: Electrochemistry
Published) Harnessing anodizing & Electrodeposition: A synergy for enhanced H2 production 相乗効果： 陽極酸化と電気めっきが水素生産を向上させる
Lead-author: TUAT Visiting Fellow, Riski A. N. Utama. “Enhancing the Photoelectrochemical Activity of CuO/ZnO Junction Photocathodes for Water Splitting” 光電気化学（PEC）水分解のためのCuO/ZnO異種接合光陰極
[VISITOR] From Institut Teknologi Sepuluh Nopember ITS Indonesia
From Nov. 2023 to February 2024: Riski A. N. Utama, a visiting PhD student. Topic: Electrochemical synthesis for energy materials And from 15 Dec. to 20 Dec. 2023: Dr. Heru Setyawan (Professor of Chemical Engineering)
開発の事例：微粒子の合成と構造化 Example of Technology: Synthesis & Structuring of Particles (2018-2019)
浮遊する微粒子の構造化と集積化について、従来まで考証されていなかった物質の輸送に対する「駆動力のバランス」の視点からの技術手法を開発した。We have developed methods for synthesis & structuring suspended particles from the viewpoint of “balance of the driving force on the transport of matter”, which has not been considered before.
Rotary-electrochemical system: Ca-P Particles (Patent) リン酸カルシウム粒子の合成法（回転型電気化学システム）特許出願
TUAT & CBIC submitted a patent on 2017/12 for a “rotary” electrochemical method; producing calcium phosphate particles. 東京農工大学および株式会社シービックは、2017年に特許を出願。回転型電極を用いた新しい電気化学的手法により、リン酸カルシウム粒子を製造する技術。
Producing magnetite nanoparticles: Saving resources, Electrode design. 磁鉄鉱粒子製造の省資源化：電極設計
◆環境に優しい（磁性）ナノ粒子製造プロセスを提案。◆水と鉄（電極）以外に化学薬品は必要ない
*Environmentally friendly process for (magnetic) nanoparticles. *No chemicals are needed, except water and iron (electrode).
Charge-Interactive nano-Particle Deposition (CIPD) & Optical Properties. 光学的性質も変化させる、荷電相互作用ナノ粒子堆積技術 (Patent)
Patent application (2018/2/7): A method to control the interaction between the surface charge of colloidal nanoparticles and the charge of aerosol droplets generated by electrospray. This is the first study in the world to investigate this interaction. 特許出願（2018年2月7日）：コロイドナノ粒子の表面電荷と、静電噴霧によって生成される気相中の懸濁液滴の帯電との相互作用を制御する手法。 この相互作用を解明したのは、世界で初めての研究報告です。
A doctoral student presented in Asian Aerosol Conference 2017 (Jeju, Korea)博士学生が韓国で発表した。
Presenter: F. Faizal (Doctoral student),Co-author:S. Yokote (Master-student),M. P. Khairunnisa (former doctoral student, now with Ministry of Higher Education, Malaysia),W. Lenggoro “Direct- and Electrospray-Depositions of Particles Derived from Burning Candles” DATE: JULY 2 – 6, 2017, VENUE: ICC JEJU, JEJU, KOREA * Presentation by student >> LIST
Collection of particles in tap water by electrophoresis. 電気泳動法で水道水中の微粒子の採集
Other “intro” of papers from our lab >> /tag/paper/ Removal of iron-oxide particles after post-filtration in local potable water using an electrophoretic method Collaborated with: Univ. Putra Malaysia; Univ. Teknologi MARA, Malaysia Journal of Water Process Engineering: Vol. 9, Feb. 2016, Pages 208–214. doi: Full text/PDF: Researchgate, or here Keywords: Electrophoretic deposition; Fibre electrodes; Limiting flux;…
卒業生が教員）バンドン工科大学を訪問..Visited Chemical Engineering ITB, Bandung, met Dr. Pramujo.
2015/Sept/3: Lenggoro visited Dept. of Chemical Engr. ITB, with 8 fellows (including 4 CEOs) from Society of Powder Technology Japan. A lecturer, Dr. Pramujo Widiatmoko (a TUAT Alumnus) kindly welcomed us. ……….. Link between our group and ITB : 当研究室とITBとの関係: /tag/itb/
NanoSERS AeroMapper: <100 nm Resolution Mapping with Aerosol Probes. 粒子散布による有機分子層のマッピング技術
気中微粒子を用いた100nm未満の分子分布マッピング技術。SERS法で表面上の分子パターンを可視化。A <100 nm resolution mapping technology using airborne aerosol probes for organic molecular layers, visualizing surface molecular patterns with SERS.
Plant-derived materials for battery. グルコース添加の合成で電池用粉末は「質」が向上
Without a milling process (break-down) process, Lithium-battery material can be synthesized, in submicron size (100-600 nm) through glucose-assisted combustion synthesis.（植物由来原料）グルコースを添加した新しい「燃焼合成法」により二次電池用粉末をサブミクロンサイズで合成できた。
Pulse-Electrophoretic Nanopore Immobilization (PENI) Technology パルス電気泳動ナノポア固定化技術
2008年発表のPEPD法を発展させ、水中の100nm以下の多孔性基板内部に粒子を固定化する世界初の技術。An evolution of the 2008 PEPD method, this world-first technology immobilizes particles within sub-100 nm porous structures of substrates in aqueous media.
博士Thesis: Role of substrate in particle deposition. 粒子沈着における表面性状の役割
The role of chemical and physical properties of substrate in the deposition of particles
粒子の沈着における基板表面の物理的・化学的特性の役割
A Visiting Scholar: Prof. Heru Setyawan
On 2013 Nov.1-2: We welcomed Dr. Heru Setyawan Professor, Department of Chemical Engineering, Sepuluh Nopember Institute of Technology (ITS). He was also our visiting fellow in November 2009. ITS is a recognized top university in Indonesia. Lab Website
Student presented (in Osaka): Electroplating. 液中粒子状膜（学生が学会発表）2013
2013 Oct. 8-9, Osaka. 粉体工学会2013年度秋期研究発表会 電解めっきを伴う電気泳動法による金属粒子状膜の形成 発表者= M1.内藤恵介 Formation of particulate metallic layer by electrophoretic deposition synchronized with electroplating (Naito, Keisuke & Wuled Lenggoro) Society of Powder Technology Autumn Meeting 2013 Other presentations by students. = Other presentations from our group
Thermal stability of magnetite particles made by an electrochemical method/ 電気化学法で合成した磁鉄鉱粒子の熱安定性
Surface modifications have been conducted by coating the nanoparticles with silica by a one-step synthesis in dilute sodium silicate solution. 希薄ケイ酸ナトリウム溶液中での一段階合成によりナノ粒子をシリカで被覆することにより表面改質を行った。
Visiting doctoral student: Adrian Nur (Oct.-Dec. 2012) 訪問研究者（博士課程）
ADRIAN NUR (アドリアン ヌール) Visiting doctoral student / visiting fellow (October to December 2012) A doctoral student of Chemical Engineering, Institut Teknologi Sepuluh Nopember (ITS) (セプルノペンバー工科大学), Indonesia, with supervision of Prof. Heru Setyawan (also TUAT visitor Oct.-Nov. 2009), and with same program with Ms. Fauziatul Fajaroh (also a TUAT visitor Oct.-Dec. 2010). Also, an academic staff…
Silica-coated magnetite particles by electrooxidation/ 電解酸化で磁性粒子の合成
Method: Electrochemical method.
Material: Silica-coated magnetite nanoparticles
Size: 6 to 10 nm
Property: superparamagnetic
方法: 電気化学的
材料: シリカ被覆マグネタイト
粒子サイズ:6-10nm
特性: 超常磁性
Pulse-Electrophoretic Nanofilm Deposition (PEND) for Dense Aqueous Colloids. 高密度液相コロイド用パルス型電気泳動膜形成技術 (Patent)
本特許技術では、パルス直流電気泳動を用いて、金属ワイヤー上に酸化チタンナノ粒子膜を均一に形成します。水系または有機系分散媒に変動電圧を加えることで、密着性と光触媒活性に優れた膜を得ることができます。This patented method enables the uniform deposition of titanium oxide nanoparticle films onto metal wires using pulse DC electrophoresis. The technique achieves strong adhesion and high photocatalytic activity by applying fluctuating voltage to aqueous or organic suspensions.
Open Seminar by Dr. H. Setyawan – Synthesis of nanoparticles
2009/11/5: インドネシアの大学からの客員教授の講演会 TUAT-BASE Visiting scholar – Dr. Heru Setyawan Professor, Dept. of Chemical Engineering, Sepuluh Nopember Institute of Technology (ITS), Indonesia: Title = Synthesis of nanoparticles by a novel electrochemical method. 新規電気化学法によるナノ粒子の合成 Place: BASE, 2nd Floor Meeting room, Koganei, TUAT
"Particles & Transfer" Lab. 