SEMINAR: What, How and Why Real Green Processing is Difficult but...

SEMINAR: What, How and Why Real Green Processing is Difficult but...


Speaker: Masahiro YOSHIMURA, National Cheng Kung University, Tainan,Taiwan

Title: What, How and Why Real Green Processing is Difficult but Necessary for Sustainable Society?

Date/Time:17 March 2022 / 13:40 - 14:30

Location: FENS G035 (Hybrid)

Zoom Link:

Passcode: gradsem


Abstract: Most of People have considered SDGs (Sustainable Developing Goals) to be important. Moreover, Global Warming has been caused by CO2 increase. In my opinion, however, it has been misunderstand on Reason vs. Result. Even in the present Meeting (Hi-GEM),”Green Energy Processing” via (1) Energy Storage, (2) Sustainable Energy Conversion, (3) Low Carbon and Recycling Energy.etc. have been discussed. However, Real Problem should be “Reduce Energy Usages to sustain the Earth System and Human Lives. In those regards, one must learn from Nature Systems actually sustained by Water Cycles of the Earth. That is: (A) Reduce using Total Energies, (B) Reduce Wastes(Matters and Heats =Entropy), (C) Recycle is not better than Reduce and Re-use, (D)Learn from Oceanology, Plate Techtonics and Bio-systems via Solar-Soil-Water, but not from Industries based upon Fossil Fuels.We have challenged to fabricate advanced materials with desired shape/ size/ location, etc. directly in low energetic routes using aqueous solutions. We  proposed in 1995 those innovative concept and technology, as “Soft Processing” or “Soft, Solution Processing,” which aims low energetic (=environmentally friendly) fabrication of shaped, sized, located, and oriented inorganic materials in/from solutions [1,2]. It can be regarded as a real “Green Processing”. When we have activated/stimulated interfacial reactions locally and/or moved the reaction point dynamically, we can get patterned ceramic films directly in solution without any firing, masking nor etching.   Direct Patterning of CdS, PbS and CaWO4 on papers by Ink-Jet Reaction method. Furthermore, we have succeeded to fabricate BaTiO3 patterns on Ti by a laser beam scanning [3] and carbon patterns on Si by plasma using a needle electrode scanning directly  in solutions [4]. Successes in TiO2 and CeO2 patterns by Ink-Jet Deposition, where nano-particles are nucleated and grown successively on the surface of substrate thus become dense  even below 300 C had been presented [5]. In addition, we propose Heat cascades for Materials Fabrication to elliminate wastes (Heat and materials =Entropy) [6].

[1]  MRS Bulletin,25 [9],Sept. issue 2000, special issue for Soft Processing of Advanced Inorganic Materials ,Guest Editors:M. Yoshimura and J. Livage.

[2]  Yoshimura, M., J. Mater. Sci.,41 [5],1299-1306 (2006), 43[7],2085-2103(2008). 

[3] Watanabe, T.,Yoshimura,M.,et al. Thin Solid Film,515,2696-2699(2006).

[4] Watanabe, T,Yoshimura,M,et al.,Carbon,44,799-803(2006), and S.Sahoo, M. Yoshimura ,  et al., submitting (2023).

[5] E.Satheeshkumar, J.R. Rombardi,M. Yoshimura, Materials Advances,1,146(2020).

[6] M.Yoshimura et al., MRS Fall meeting, Boston, Nov. 30 (2022).

Bio:  Masahiro Yoshimura is a Distinguished Chair Professor (Guest) and Director of the Promotion Center for Global Materials Research, Materials Science and Engineering, National Cheng Kung University, Taiwan and a Professor Emeritus at the Tokyo Institute of Technology, Japan. Yoshimura has received the following degrees: B.S. in 1965, M.S. in 1967 and a D. Sc. in Engineering in 1970 from the Tokyo Institute of Technology, Japan; 1970, Research Assoc., 1978 Assoc. Prof., 1985 Full Prof. in Materials and Structures Laboratory, Tokyo Institute of Technology. During those periods, 1973-1975 he worked as a Post Doc in 3 CNRS Labs in France, (Odeillo, Orleans and Paris) and from 1975-1977 at Massachusetts Institute of Technology, Boston, MA, USA. He was the Director of The Center for Materials Design from 1996-2002.After several visiting/guest professor positions at Tohoku University, Japan, University Limerick, Ireland, ETH Zurich, Switzerland, Institute of Metal Research, CAS, Shenyang, China, Yoshimura retired in 2008, as Professor Emeritus, from Tokyo Institute of Technology. He has been at the National Cheng Kung University, Taiwan since February 2010 as a Visiting Chair Professor, and in his present position since July 2012. He was nominated by Thomson-Reuter as the ISI Highly-Cited Researcher in 2001. Yoshimura has >730 peer-reviewed papers, 84 reviews, 5 books (44 book chapters) and 30 patents, and >17,500 International Citations with h-index = 66 in Mendeley, Elsevier or Citations >22,000 for >850 articles in Research Gate. He received the Academic Award (1993) from The Ceramic Society of Japan, 10thFulrath Pacific Award (1987) and Fellow (1995) from The American Ceramic Society, International Award (2001) from The European Ceramic Society, IUMRS Somiya Award for International Collaborative Work, IUMRS (2002), Honorary Member in MRS – India (2003), Research Award, Ministry of Education, Culture & Science, Japan (2007), Lee Hsun Award, Institute of Metal Research, CAS, Shenyang, China (2008) and Honorable Permanent Resident Visa, Taiwan (2012). He received the Lifetime Achievement Award in 2013 from ISHA. Yoshimura has been nominated as one of the Honorary Fellows in The European Ceramic Society in 2017. Yoshimura has served as 19 Organizing Chairs, IUMRS-ICA, Chiba, 1997, IUMRS-ICAM, Yokohama, 2003, and International Conference in Hydrothermal Reactions, Sendai, 2006, 6th ISHA, 2016, Tainan, Taiwan, has joined 64 International Advisory/Organizing Committees, 21 Plenary Lectures, i.e. MS&T, San Francisco (2000), ICMAT, Singapore (2003), Hydrothermal/Solvothermal Symposia, Kochi, Japan (2000) Mysore, India (2004), Sendai, Japan (2006), Nottingham, UK (2008), Beijing, China (2010), etc. and gave >200 Invited/Keynote Lectures at International Meetings. He is one of the Editors in Solid State Science (since 1988), J. Nanomaterials (since 2004), Nano Letters (2002-2005), etc. and Guest Editor in MRS Bull, Oct. 1994 and Sept. 2000, Euro. J. Solid State and Inorg. Chem. 1995, Solid State Ionics, 152/154, 2002, J. Mater. Sci. 2006 and 2007. Yoshimura is also the Founding President (2006-2008), of the International Solvothermal and Hydrothermal Association (ISHA). He was the President of the Advisory Board (2010-2014) after the Chairman of the Nomination Committee, 2002, 2004 & 2006 in The World Academy of Ceramics (WAC), An Advisory Officer, IUMRS (Audit Elect 2007-2008, Former President of MRS-Japan).