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Lee, Heeju,Choi, Yong Nam,Choi, Sang Beom,Seo, Jung Hye,Kim, Jaheon,Cho, In Hwa,Gang, Seunggi,Jeon, Cheol Ho American Chemical Society 2014 The Journal of Physical Chemistry Part C Vol.118 No.11
<P>Recent research on hydrogen storage in metal–organic frameworks focuses on how to achieve increased hydrogen binding energies by using doped metal, using unsaturated metal ions, or forming composites comprising Pt-doped carbon materials. In particular, noticeable progress using MOFs and Pt-doped carbons has been achieved to enhance the hydrogen storage capacity near room temperature. A three-component composite material, Pt-MWCNT-MOF5 (PMM5), which is a metal–organic framework (MOF-5) hybridized with Pt nanoparticles on multiwalled carbon nanotubes (MWCNT), stores 0.22 wt % hydrogen at 320 K and 30 bar, which is larger than 0.13 wt % at 300 K and 30 bar. Although the increased quantity is small, it is possible to detect the origin of uptake increase based on various analyses. In situ neutron diffraction experiments of deuterium-sorbed PMM5 with a temperature cycling process (D<SUB>2</SUB> loading at 50 K → 4 K → 320 K, 2 h → 50 K → 4 K) result in a significant background increase owing to both chemisorbed deuterium atoms and a local deformation of the MOF-5 framework. Hydrogen loading in PMM5 induces significant binding energy shifts in C 1s and Zn 2p<SUB>3/2</SUB> electrons in the X-ray photoelectron spectra, suggesting the chemical environment change in Zn<SUB>4</SUB>O(COO)<SUB>6</SUB> coordination sphere in MOF-5. All accumulated experimental data support the fact that the hydrogen receptor is the oxygen atoms of benzene-1,4-dicarboxylates of MOF-5, which is facilitated by the embedded Pt-MWCNT.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jpccck/2014/jpccck.2014.118.issue-11/jp411955y/production/images/medium/jp-2013-11955y_0007.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/jp411955y'>ACS Electronic Supporting Info</A></P>
이동규(Lee Dong gyu),강민규(Gang Min gyu),김규범(Kim Gyu beom),이재신(Lee Jae shin),서인석(Seo In seok) 한국지방정부학회 2014 지방정부연구 Vol.18 No.3
This research attempted to make it possible to analyze the relative importance of individual factors by selecting Busan Citizens' Park for regional future prediction for Busanjin-gu, hierarchizing SWOT analytical factors centering on this, and conducting AHP (Analytic Hierarchy Process) that needs specialists' survey. The results of this research show that the importance of opportunities and strengths of Busan Citizens' Park was greater than that of weaknesses and threats, indicating that the future prediction of Busan Citizens' Park is positive. However, just because the importance of weaknesses and threats is relatively low, they should not be treated lightly, and efforts should be made to quickly eliminate even small negative factors. It is expected that this research will present meaningful implications for establishing development strategies of Busanjin-gu centering on Busan Citizens' Park by quantifying the characteristics of each factor and will help Busanjin-gu take off as a prestige borough representing Busan and raise the competitiveness of Busan City as a whole. 본 연구는 부산진구의 부산시민공원 지역미래예측 조사를 시도했다. 부산시민공원의 SWOT 분석 요인들을 계층화 하고, 전문가 설문을 필요로 하는 AHP(Analytic Hierarchy Process)분석을 실시했다. 또한 SWOT 요인들을 계량화 하여 개별 요인들의 상대적인 중요도를 분석할 수 있도록 하였다. 연구결과 부산시민공원은 기회와 강점의 중요도가 약점과 위협에 비해 두드러지게 나타났다. 이러한 지역 미래예측결과를 바탕으로 도시발전 전략 수립이 긍정적임을 보여준다. 이러한 분석은 각각의 요인이 갖고 있는 특성을 계량화함으로써 부산시민공원을 중심으로 한 부산진구의 발전전략을 수립하는데 의의가 있다. 부산시민공원을 통해 부산진구가 부산을 대표하는 명품 지역구로 도약하고 나아가 부산시 전체의 경쟁력을 제고하는데 도움을 줄 수 있다.