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- Development of an energy-efficient and robust zirconium carboxylate metal-organic framework
- Prof. Jong-San CHANG (Professor, Dept. of Chemistry, Sungkyunkwan University and KRICT) and his co-researchers in the French CNRS have recently published an important article, titled with “A robust large-pore zirconium carboxylate metal-organic framework for energy-efficient water-sorption-driven refrigeration’’ in Nature Energy (doi: 10.103 /s41560-018-0261-6). The use of electric air conditioners is rapidly increasing due to recent weather changes and global warming. There are more than 1.6 billion electric air conditioners operating in the world. Amount of greenhouse gas emissions due to the use of air conditioner was 1.25 billion tons in 2016. The IEA recently estimated that outdoor units of electric air-conditioners raise the temperature by 1oC overnight in the cities. The new generation of air conditioners will get rid of noisy compressors and greenhouse gas coolants and instead rely on the cooling power of water, thanks to a super adsorbent metal-organic framework (MOF). The porous material could drive adsorption chillers that, instead of consuming huge amounts of electricity, run on industrial waste heat or solar energy. The water sorption (i.e., molecules capable of fixing water at the surface) is used for heat recovery from industrial processes and solar energy. The typical temperature of in-house warm water systems involving a cogeneration producer does not exceed 63°C, and it can be used for cooling systems and heat pumps. Currently it is based on inorganic porous commercial adsorbents (zeolites or related solids) that suffer from high regeneration temperatures and/or limited pore volumes leading to energy-inefficient systems. To overcome these drawbacks, the researchers designed a new hydrophilic nanoporous hybrid solid with large pores, made of zirconium oxoclusters. Made from zirconium oxo clusters linked by tetracarboxylate units, the MOF can store almost twice as many water in its hydrophilic channels than the silica gel, a common desiccant. The researchers also showed that their material outperforms a commercial zeolite absorbent in terms of cooling performance which is the ratio of cooling to energy input required to release the coolant. For cooling, the overall performance relies not only on evaporation and condensation temperatures of water, but also on adsorption (exothermic) and desorption (endothermic) temperatures, the storage capacity, stability and kinetics of heat exchange. The new Zr-MOF exhibits a microporous structure very stable in presence of hot water. It shows a highly pronounced hydrophilic behavior with significant heat exchanges and a pore size sufficient enough to adsorb large amount of water and also a lower regeneration temperature during desorption step (<65°C). They have performed energetic performance calculations (ratio of the energy taken from the evaporator and the energy needed to regenerate the adsorbent). This analysis revealed that the solid is more efficient than any other evaluated porous materials so far for this type of application. It will lead to the development of a new generation of cooling to recover solar energy or even energy from heat sources related to human activities. *Thesis title: A robust large-pore zirconium carboxylate metal–organic framework for energy-efficient water-sorption-driven refrigeration, Nature Energy, 3, 985-993 (2018). (DOI:10.1038/s41560-018-0261-6)
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- 작성일 2019-03-22
- 조회수 2205
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- SKKU ranked 14th place in the 2019 Asia-Pacific University Rankings. No.1 in Korea
- Times Higher Education has released its recent world university ranking. SKKU has ranked 14th place in the 2019 Asia-Pacific University Rankings. It is No.1 among private universities in Korea. Sungkyunkwan University, Seoul National University, and KAIST was among top 20 universities in the ranking. SKKU scored 74.8 points in thesis evaluation, which was higher than Seoul National University (64.2 points). Original Article (Korean): http://news.mk.co.kr/newsRead.php?year=2019&no=107789
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- 작성일 2019-03-18
- 조회수 2415
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- Mr. Choong Gu LEE, Chairman of Unix Electronics donates 110 Million Won
- On January 25th, Chairman Choong Gu LEE (Graduated in 59’) visited President’s office to donate 100 Million Won for Sungkyun Nobel Prize Fund and 10 Million Won for Student Meal Support Fund. Chairman LEE has donated over 1.8 Billion Won to SKKU, which included 5 million won towards the dormitory construction fund, 5 million Won for Vision 2010 Fund, and 3 million won for "LEE Chung GU Life Science Scholarship Fund". In this ceremony, Dong-Ryeol SHIN(President of SKKU), Yong Taek YUN (Chairman of Alumni Association), Tae Hyup LEE (Executive Director), Hong Won JUNG (previously Prime Minister of Korea),Hong Joon YOO (Vice-President of Humanities Campus), Young Bok BAE (Vice-Chairmanof Alumni Association) and Hang Sik ROH (CEO of C&C Project Corporation) attended to express gratitude to the chairman’s donation. Chairman LEE said, “I feel very proud of my university as it advances in the global community. I decided to donate after hearing the news about the creation of the “Noble Prize Fund”. I hope that this fund is used as the foundation to improve our university’s research power and produce Korea’s first Noble prize winner.”
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- 작성일 2019-03-05
- 조회수 2380
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- 2019 Freshman Orientation ended successfully
- University College (Dean Hongjoon YOO) held a Freshman Orientation on February 13 ~ 15 at both campuses to inform new students about the academic affairs. In this event over 2,000 freshmen and parents participated to have a community building time with their LC (Learning Community). Sungkyun Mentor Jonghee JEON said, “We welcome all freshmen who have decided to join this innovative university which puts ‘student success’ as prime value. I hope that the students enjoy a fantastic year along with FG (Freshman Guide) mentors and fellow LC students.” Senior student Chanhee LEE (Global Management 15’) advised, “Students need to spend time constructing a future plan prior to their first year.” In the orientation held at the Natural Sciences Campus, Vice-President Sungjin SONG gave an welcoming address wishing students success. Kingo Cheer Leader Jungmin LEE (English Literature 17’) said, “It was very rewarding to see freshmen sing the school song along with other students despite the awkwardness.” University College is trying to help out students be informed of academic affairs by posting e-book and video clips on the website. The entrance ceremony will be held on February 27th 11AM at the Suseonggwan, Natural Sciences Campus.
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- 작성일 2019-02-19
- 조회수 2204
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- Orientation for 2019 Freshmen (rolling recruitment) ended successfully
- On December 28th and January 4th, University College (Dean Hong Joon YOO) held an orientation session at each campus for freshmen who were accepted on a rolling-basis for the 2019 academic year. 1,124 students and parents took part in this year’s event and the increase of students enrolled in engineering and natural sciences programs was prevalent. The overall number of participants increased as well, recording about 220 more participants in comparison to the previous year. Programs in the orientation were designed to help the adjustment of the newcomers and it included a session with Sungkyun Mentor on the detail of preliminary school, welcoming performance by Kingo cheering squad and a session on the Freshman Guide. Soon Hyun JUNG, the Sungkyun Mentor who led the orientation at the Humanities and Social Sciences Campus expressed, “New students showed great interest in the details of university life such as dorm, scholarship, exchange program, cafeteria and shuttle bus. I feel that the university will take a bigger role for the success of the students.” One of the parents who participated in the orientation said, “At first, we were worried that the general program will be different from the specialized programs. But after listening to the lectures by Sungkyun Mentors and other Freshman Guide seniors, we are relieved.” University College has published an e-book containing information about course, library, and issuing Kingo-M for students who were unable to attend the orientation due to the distance. The college has also sent out a mobile message to individual students so that new students will be informed of academic affairs prior to the admission. University College is planning to have an orientation session for each program after mid-February and the entrance ceremony will be held at February 27th 11:00 AM in Suseonggwan (Natural Sciences Campus).
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- 작성일 2019-02-08
- 조회수 2319
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- SKKU AORC concludes MOU with Zhejiang Normal University’s CDM
- SKKU’s Applied Algebra and Optimization Research Center (hereafter AORC) signed an agreement with Zhejiang Normal University’s Center for Discrete Mathematics (hereafter CDM) for a joint research on December 27th, 2018. AORC is a science research center (SRC) established under the sponsorship of the Korean government with the purpose of becoming the leading institute of research in the field of applied algebra and optimization. Its focus is on the development of efficient algorithm to be used in various applicable areas, and performing researches on the theory of matrix, combinatorial analysis, network/graph and optimization. Zhejiang Normal University’s CDM was established in 2010 as a platform to participate in projects sponsored by the Chinese government and to promote joint research on theories of graph, combinatorial analysis and network optimization. CDM is currently performing its role as the platform that carries out projects sponsored by Zhejiang province and the Ministry of Education in China. 20 professors who are well-known in this field are currently participating as researchers and each year more than 20 researchers are visiting CDM. It holds 2~3 international workshops every year and biennially a symposium is held under the topic “Graph theory, combinatorial analysis and its application”. In addition, CDM is strengthening international cooperation with global research centers. CDM has signed a MOU with SKKU after agreeing to have research cooperation with Charles University’s DIMATIA center (Czech Republic) and Renyi Institute of Mathematics (Hungary). AORC and CDM will perform a joint research on graph theory and network optimization.
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- 작성일 2019-02-07
- 조회수 2484
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- In December, 2018, warm donation news was delivered to College of Science.
- In December, 2018, warm donation news was delivered to College of Science. Dukhee RYU (CHEM 56/President of Kyungdong Pharmaceutical Co.) donated 200 million won to Haeng-ja KIM Scholarship fund and did 10 million won to the Sport team development fund(total 210 million won). Tae-seon KANG(Chem ‘74/ CEO of Kisan Tech Co,. LTD.) donated 5 million won to the department of the chemistry Tae-seon KANG scholarship fund, Jun-gwon KIM(Bio ’77/ CEO of Sinyoung Biomedics) donated 5 million won to the department of the biological sciences scholarship fund and Man HEO(Math ’93/ Principal of Sun&Grass Kindergarten) donated 1 million won to the university development fund. Many other alumni have been very helpful for the development of College of Science. They said, "We will continue to give support to SKKU students and juniors so that they can concentrate on their studies."
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- 작성일 2019-01-16
- 조회수 2236
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- New Year’s Message from the President of SKKU
- Dear Sungkyun Family, The year of Golden Dog has passed, and the new year of 2019 has come. This year is the year of the Golden Pig, which brings abundance to life. I sincerely hope that all SKKU members’ dreams and wishes are realized in accordance with the meaning of the year. Despite the tough domestic and foreign environment, our university has made a great achievement by entering the list of top 100 global universities. SKKU now takes rank with many prestigious universities in the world by achieving 82nd place in THE and 100th place in QS world university rankings. This will leave a significant mark on our university’s long history. Last year, SKKU was selected for the demonstration of university innovation project (PILOT) and has achieved 1st place in the National Customer Satisfaction Index (NCSI) for 12 consecutive years. Also, we saw great results such as recording the highest job employment rate for 5 consecutive years and producing an increasing number of successful candidates for the national exams. We have newly established prospective majors to meet the needs of the era of fusion and convergence. Academic affairs have been reorganized to a flexible and student-centered system, setting the foundation for a new takeoff. In addition, SKKU has exhibited a high level of research power in the global academic world. In 2018, four of our researchers were selected as ‘Highly Cited Researcher’ and we have made excellent academic achievements in both quantity and quality. More than 5000 theses (SCI) were published for 2 years in a row and each piece was cited more than 10 times. Also, SKKU has gained a foothold of GT10+Convergence R&E cluster centered research by establishing the Institute of Quantum Biophysics and Institute of Art & Culture Media Convergence. SKKU was able to maintain inner stability and move on as a global leading university by the united efforts of university, foundation and alumnus. I would like to express my sincere appreciation for all the Sungkyun members for their dedication to our university. We should now take a powerful step toward our goal of being a ‘Global Leading University’. We should bear in mind that if we remain content of our previous achievements, we will fall behind of competition. Our university is now confronting challenges such as: the call for futuristic human resource education, decrease in number of school age population and the appearance of new form in education. SKKU will not remain content of our 600 years of history but move on by overcoming hardships with the collective wisdom of Sungkyun family. This year, I feel a great sense of responsibility and duty as the new president of SKKU. I will do my best to make SKKU a successful model of an innovative university and a truly Global Leading University. I suggest the following policies to achieve this goal: First, strengthen data · convergence education Second, achieve Global TOP 50 researches Third, advance as the leading university of new industries Fourth, manage based on the principle of communication and participation Again, thank you very much for all the dedication towards the development of our university. I wish each and every one of you good health and success in the year of our school’s 621st anniversary. January 1st, 2019 Dong Ryeol SHIN, The President of SKKU
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- 작성일 2019-01-07
- 조회수 2300
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- SKKU ranked 33rd(Global), 1st(Korea) place in Chemistry
- SKKU has ranked 33rd(global) and1st(Korea) in the chemistry section of the ‘US News Subject Ranking’. US News’ subject ranking is assessed based on the number of thesis publication/citation and global reputation. It uses one of the world’s most renowned database ‘Web of Science’ (Clarivate Analytics) to count the number of thesis publication/citation. For the subject of chemistry, it evaluated 1,032 global universities and SKKU has ranked 33rd globally, 14thin Asia, and 2nd in Korea. UC Berkeley and Nanyang Technological University was named as the top universities in the global ranking. SKKU wasr anked as the top university among regular universities in Korea and it was followed by UNIST, SNU, POSTECH, etc. Relevant Article: https://www.usnews.com/education/best-global-universities/chemistry
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- 작성일 2019-01-04
- 조회수 2341
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- Prof. Karsten Rott's Research Team (Dept. of Physics) Participated in the IBS Dark Matter Study
- The Cosine-100 Collaborative Research Unit of IBS (Institute for Basic Science) which SKKU research team led by Prof. Karsten Rott (Dept. of Physics) participated paved the way for long-standing controversy surrounding dark matter signal that Dama experiment had observed. The results of this research were published at the online edition of Nature (IF 42.351) on December 6th at 3 AM. In the paper, data from the cosine-100 experiment suggested that there is insufficient evidence that the signal detected by the Dama experiment is caused by dark materials, and disproved most of the theories based on the results of the Dama experience. Currently, two graduate students of our university are participating in the cosine-100 experiment and are conducting a detector simulation. SKKU team has been participated in this experiment from the beginning of detector production and is contributing on the data monitoring from the detector. "The cosine-100 experiment will continue to collect data. We hope that we will be able to fully understand the anomalies observed by the Dama experiment, Prof. Karsten said. “Although this result does not directly identify the presence of dark matter, it may discovered a new phenomenon that we do not yet.”
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- 작성일 2019-01-03
- 조회수 2278