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메인 제목 Advanced Materials Interfaces, Main Cover of Inaugural Issue 
메인 소개 내용  

Enhanced HGeneration of Au-Loaded, Nitrogen-Doped TiOHierarchical Nanostructures under Visible Light
Brundabana  Naik, Sun Mi Kim, Chan Ho Jung, Song Yi Moon, Sang Hoon Kim, and Jeong Young Park 
Advanced Materials Interfaces

Hierarchical N-doped TiO2nanostructured catalysts with micro-, meso-, and macroporosity are synthesized by a facile self-formation route using ammonia and titanium isopropoxide precursor. UV–vis diffuse reflectance spectra confirm the red shift and band gap narrowing due to the doping of N species in the TiOnanoporous catalyst. Hierarchical macroporosity with fibrous channel patterning is observed and well preserved even after calcination at 800 °C, indicating thermal stability, whereas micro- and mesoporosity are lost after calcination at 500 °C. The photocatalytic activity of hiearchical N doped catalysts loaded with Au is evaluated for H2 production reaction in visible light. The enhanced photocatalytic activity is attributed to the combined synergetic effect of N doping for visible light absorption, micro- and mesoporosity for an increase of effective surface area and light harvestation, and hierarchical macroporous fibrous structure for multiple reflection and effective charge transfer.


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나노물질 개질 이용한 인공광합성 효율 증대 원리 개발 [Advanced Materials Interface 창간호 메인표지논문선정박정영교수팀]

 

국내연구진이 나노물질 개질을 이용한 인공광합성 효율 증대 원리를 개발했다.

기초과학연구원(IBS)은 나노물질 및 화학반응 연구단 그룹리더 박정영 연구진(KAIST EEWS대학원 교수) KIST 김상훈 박사와의 공동연구를 통해 빛에 노출되면 촉매제의 역할을 하는 광촉매인 이산화 티타늄의 나노구조화 및 질소 도핑을 통해 인공광합성의 효율을 증대시키는 원리를 발견했다고 16일 밝혔다.

 

연구결과는 에너지 저장 및 전환 등 화학공학 분야와 소재 및 바이오 분야 발전에 기여할 것으로 기대된다최근 지구 온난화와 화석자원의 고갈지구 환경의 보존을 위해 재생가능 에너지기술의 핵심기술 확보가 급격하게 요구되면서 해당 분야 연구가 전 세계적으로 이뤄지고 있다.

 

이러한 문제를 근본적으로 해결할 수 있는 기술로 태양광 에너지를 연료로 축적하는 기술인 인공광합성이 점차 주목 받고 있는 가운데 가시광선과 물을 이용해 연료로 사용가능한 수소를 제조해 내는 기술이 대표적이다연구진은 이산화티타늄을 연탄 모양과 같이 계층이 정렬된 계층적 다공성을 지닌 구조로 제작해 구조적인 특성을 바꾼 다음 질소를 투입하고 전기적인 특성을 바꿨다.

 

이산화 티타늄의 인공광합성 효율을 개선하고 빛을 이용해 인공광합성이 원활히 이뤄질 수 있는 새로운 방법을 개발했다연구진은 물질이 계층성을 지니면서 정렬된 경우 그렇지 않은 경우에 비해 2질소 도핑을 한 경우는 도핑이 되지 않았을 때와 비교해 효율을 30% 높이는 결과를 얻었다.

 

지금까지의 관련 연구들이 이산화티타늄을 질소 도핑하거나 다공성 물질로 만드는 부분만이 보고됐으나 이번 연구는 세계 최초로 질소 도핑과 계층적 다공성을 모두 지니고 있는 물질을 개발했다는 점에서 의미가 있다계층적 다공성 신소재를 구현한 이번 연구성과는 어드밴스드 머터리얼스 인터페이스 창간호 메인 표지논문으로 선정됐다.

번호 제목 글쓴이 날짜 조회 수
공지 SCALE lab members attended Korean Society of Surface Analysis (Daejeon, Nov 22-24) 관리자 2022.11.28 206
공지 Prof. Park was elected to be the member of Korean Academy of Science and Technology (2023). 관리자 2022.11.28 181
공지 SCALE lab members attended AVS 68th International Symposium & Exhibition (Pittsburgh, PA USA, November 6-11, 2022) 관리자 2022.11.28 186
공지 SCALE lab members attended Korean Chemical Society Meeting (Gyeongju, Oct 19-21) 관리자 2022.11.28 146
공지 The talk entitled “Atomic Scale Friction Properties of Two-dimensional Intercalated Water Layers” was given at Korean Tribology Society Meeting and Best presentation award was given. 관리자 2022.11.28 279
공지 Dr. Heeyoung Kim’s work was published in The Journal of Chemical Physics and selected as Issue Cover 관리자 2022.09.14 216
공지 Dr. Woosuk Choi’s work (in collaboration with Prof. Ryong Ryoo) was published in Carbon and selected as Issue Cover 관리자 2022.04.18 1976
공지 Group members got poster awards from 18JKSC, PAL user meeting, and IWOX-XIII 관리자 2022.02.15 3706
공지 Yongman Kim’s paper has been selected as the Back Cover of Advanced Materials Interfaces 관리자 2022.02.15 1001
공지 Prof. Park chaired the 13th International Workshop on Oxide Surfaces (IWOX-XIII). 관리자 2022.02.15 566
공지 the 13th International Workshop on Oxide Surfaces (IWOX-XIII) will be held in Pyeongchang, Republic of Korea 관리자 2021.05.17 4207
공지 “Atomic scale tackling of greenhouse gas” highlighted by KAIST Compass 관리자 2021.05.17 3926
공지 “Plasmonic hot hole driven water splitting” work has been highlighted 관리자 2021.05.17 5091
공지 Editor of Nature Comm featured our article, entitled “How Rh surface breaks CO2 molecules under ambient pressure” 관리자 2021.03.08 1287
공지 Dr. Siwoo Lee’s hot electron work was introduced in media 관리자 2021.03.08 1786
공지 Outside Front Cover was selected for Hanseul’s Catalysis Science & Technology paper 관리자 2021.03.08 1713
공지 Park Yujin was selected as one of recipient of Posco Science Fellowship in 2020 관리자 2020.11.16 6695
공지 Hot hole measurement (published in Advanced Science) have been introduced in news media 관리자 2020.11.16 38764
공지 Ambient pressure studies on CO2 dissociation (published in Nat Comm) have been introduced in news media 관리자 2020.11.16 8436
공지 Dr. Mondal’s Advanced Functional Materials paper was selected as Inside Front Cover. 관리자 2020.01.27 20591
공지 Prof. Park gave an on-line talk in MRS Webinar Series for the special issue about “ 관리자 2020.01.27 21189
공지 Dr. Sunyoung Oh’s paper will appear as a Feature Article in JCP in a special topic on 관리자 2020.01.27 26221
공지 Advanced Functional Materials paper (in collaboration with Prof. Jong Hoon Jung in Inha Univ) was selected as Front Cover. 관리자 2019.11.18 27045
공지 Hot electron research of SCALE laboratory was highlighted in Electronic Newspaper 관리자 2019.11.18 18834
공지 Two-dimensional FeS2 encapsulated Au was selected as the Inside Cover 관리자 2019.09.27 23758
공지 IBS-RIKEN Joint Symposium [Oct 17-18] 관리자 2019.09.27 29216
공지 Perovskite-based hot electron plasmonic nanodiode was developed. The higher hot electron flux and longer lifetime were observed on this photovoltaic device. 관리자 2019.08.27 36463
공지 IBS-KAIST Symposium on Operando Surface Science and Catalysis 관리자 2019.03.27 38648
공지 Direct Imaging of Surface Plasmon-driven Hot Electron 관리자 2019.01.23 34745
공지 Ambient pressure AFM was developed in SCALE lab 관리자 2018.10.29 39660
공지 Professor Park wrote the Perspective Article in Science regarding self-cleaning on TiO2 관리자 2018.10.29 37441
공지 Highlight article about ambient pressure STM was introduced in Chemistry World (Korean) 관리자 2018.10.29 46082
공지 Kalyan and Hyosun’s ChemComm paper was selected as Inside Cover 관리자 2018.08.17 41107
공지 Sunyoung’s work was selected as Inside Front Cover of ChemComm 관리자 2018.08.17 48173
공지 Visualizing Chemical Reaction on Bimetal Surfaces 관리자 2018.08.17 44980
공지 Nature Communications paper was highlighted in Nature Research Chemistry Community 관리자 2018.06.08 54619
공지 Front Cover Selected in Nanoscale 관리자 2018.06.08 68637
공지 The Fifth Symposium of Center for Nanomaterials and Chemical Reactions 관리자 2018.05.14 44992
공지 Top 100 Scientific Reports Chemistry papers in 2017 관리자 2018.04.08 59935
공지 Dr. Joong Il Jake Choi received the first prize at Best Poster Awards of ISEST 2018. 관리자 2018.01.22 64522
공지 Dr. Hyunsoo Lee was selected as one of the winners of 2017 IBS Outstanding Researcher Awards. 관리자 2017.12.22 59462
공지 IBS CNCR Symposium : Surface Chemistry and Catalysis 관리자 2017.10.25 63018
공지 Review article about “catalytronics” was published. 관리자 2017.09.11 71924
공지 EEWS 2016 Workshop was introduced in ACS Energy Letters 관리자 2017.02.17 81971
공지 Hot electron work was selected as KAIST Top 10 Research Achievements 관리자 2017.02.17 76365
공지 Hyosun Lee and Changwhan Lee got Samsung Humantech Award 관리자 2017.02.07 70013
공지 Graphene/Pt(111) STM image was shown at Art in Science during IBS Symposium 관리자 2016.11.27 77825
공지 Friction on graphene work was highlighted in YTN Science Prime 관리자 2016.10.31 71440
공지 IBS Symposium on “Understanding photocatalytic materials at the atomic level” was held on July 14 관리자 2016.09.12 69799
공지 SCALE group attended IVC-20 conference in Busan 관리자 2016.09.12 78138
공지 Hot electrons detected at solid-liquid interfaces (Sciencedaily, YTN, and other media) 관리자 2016.07.10 73008
공지 Angewandte Chemie paper was selected as the Front Cover 관리자 2016.07.10 73606
공지 Dr. Sun Mi Kim has been awarded the Young Scientist Prize of the 16th International Congress on Catalysis (ICC 16) 관리자 2016.04.29 104574
공지 Best Poster Award at ISFM 2016 관리자 2016.03.07 76938
공지 Issue Cover Selected in Chemical Physics Letters 관리자 2016.03.07 77112
공지 박정영교수팀, ‘꿈의 신소재’ 그래핀 통해 새로운 핫전자 촉매센서 개발 관리자 2016.03.07 77951
공지 Advanced Materials Interfaces Front Cover Selected 관리자 2016.01.15 104096
공지 First group result of ambient pressure STM was published in JACS 관리자 2016.01.15 75881
공지 Science talk in the Library at Sejong Library 관리자 2015.11.23 79836
공지 Hot electron work was highlighted in IBS Research 관리자 2015.11.23 89571
공지 SCALE lab welcomes new group members 관리자 2015.09.08 79818
공지 Hot electron work was selected as KAIST breakthroughs 관리자 2015.09.08 78244
공지 Six Most Downloaded Catalysis Books in 2014 관리자 2015.07.05 81796
공지 Editorial Board of Scientific Reports 관리자 2015.05.18 82822
공지 Nanoporous Au work was highlighted in YTN 관리자 2015.05.18 80800
공지 Chemical Reviews Issue Cover selected 관리자 2015.04.20 87438
공지 SCALE lab welcomes four new members 관리자 2015.04.18 81980
공지 Surface structure can tailor adhesion [Nanotechweb Technology Update] 관리자 2015.03.10 82356
공지 Surprising current domains of misoriented graphene on graphite [Nanotechweb LAB TALK] 관리자 2015.03.03 79722
공지 Chemicurrent work by Hyosun was highlighted in media 관리자 2015.02.22 82758
공지 Angewandte Chemie paper was selected as Frontispiece 관리자 2015.02.12 79429
공지 Nanotechnology paper was selected as Cover 관리자 2015.02.12 76456
공지 KAIST Times highlighted research of SCALE laboratory 관리자 2014.12.15 73531
공지 ENGE Poster Awards (Kamran and SongYi) 관리자 2014.11.22 80629
공지 Prof. Park gave a public lecture at library 관리자 2014.10.31 75080
54 2014 KINC Fusion Research Award [Sun Mi Kim] file 관리자 2014.06.15 19980
53 SCALE lab welcomes three new members 관리자 2014.06.15 11410
52 Excellent Poster Awards in the 1st Muju International Winter School (Feb, 09-13) file 관리자 2014.06.15 12030
51 First IBS-RIKEN Workshop on Surface Science (KAIST, Feb 12-13, 2014) file 관리자 2014.06.15 15074
» Advanced Materials Interfaces, Main Cover of Inaugural Issue file 관리자 2014.06.15 22639
49 International Advisory Board of Advanced Materials Interfaces [December 2013] 관리자 2014.06.15 11267
48 October 2013 Tribology and Lubrication Technology - Cutting Edge file 관리자 2014.06.15 8013
47 Book by Prof. Park "Current Trends in Surface Science and Catalysis" has been published file 관리자 2014.06.15 7953
46 SCALE lab was introduced in Physics and High Technology (Korean Physical Society) file 관리자 2014.06.15 7787
45 SCALE Lab joined in Institute for Basic Science file 관리자 2014.06.15 7748
44 Sunmi's poster was selected as "2013 MRS Spring Meeting 'Best Poster' Nominees" file 관리자 2014.06.15 24835
43 Professor Park hosted Science Breakfast in Lindau Meeting (with Prof. Ertl) file 관리자 2014.06.15 8632
42 2013년 한국진공학회 으뜸포스터상 수상 (이현수, 이효선, 황진희) 관리자 2014.06.15 10540
41 한국물리학회 최우수발표상 (황진희) file 관리자 2014.06.15 18543
40 RHK Tech Image of the Month (March, 2013) Selected file 관리자 2014.06.15 7921
39 New members joined SCALE lab 관리자 2014.06.15 8624
38 금요일에 과학터치 강연 [이상한 전자를 이용한 에너지소자 만들기] 관리자 2014.06.15 7675
37 2011 ~ 2012 KAIST 대표연구 우수성과 10선 선정 관리자 2014.06.15 10158
36 한국연구재단 Webzine (2012, December) 나노촉매의 활성도를 효과적으로 높일 수 있는 원리 규명 관리자 2014.06.15 7839
35 KAIST News "Principle behind increasing the catalytic property of nanocatalysts proven" 관리자 2014.06.15 7840