scholarly journals Electron Transfer Function of Metalloporphyrins and Their Fixation in Polymer Gel Beads for Constructing Hydrogen Evolution System.

1996 ◽  
Vol 52 (3) ◽  
pp. 121-128 ◽  
Author(s):  
Satoko Okubayashi ◽  
Jin Matsumoto ◽  
Takuji Yamaguchi ◽  
Teruo Hori
Keyword(s):  
Electron Transfer ◽  
Transfer Function ◽  
Hydrogen Evolution ◽  
Evolution System ◽  
Polymer Gel ◽  
Gel Beads

Light-driven hydrogen evolution system with glutamic-acid-modified zinc porphyrin as photosensitizer and [FeFe]-hydrogenase model as catalyst

2013 ◽  
Vol 85 (7) ◽  
pp. 1405-1413 ◽  
Author(s):  
Shan Yu ◽  
Feng Wang ◽  
Jing-Jing Wang ◽  
Hong-Yan Wang ◽  
Bin Chen ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Cyclic Voltammetry ◽  
Glutamic Acid ◽  
Hydrogen Evolution ◽  
Lower Energy ◽  
Intersystem Crossing ◽  
Evolution System ◽  
Time Resolved ◽  
Zinc Porphyrin ◽  
Proton Source

An intermolecular light-driven hydrogen evolution system with free glutamic-acid-modified zinc tetra(p-phenyl) porphyrin (Glu-ZnP) as a photosensitizer and [Fe2(CO)6(μ-adt)C6H5] [μ-adt = N(CH2S)2] (Badt) as a catalyst has been constructed. Using phenylmercaptan (BSH) as electron donor and acetic acid (HOAc) as proton source, hydrogen was obtained after irradiation with visible light for 2 h; the efficiency is comparable to that of the similar intramolecular dyad. Steady-state and time-resolved spectroscopy and cyclic voltammetry show that both the first and the second electron transfer from singlet 1*Glu-ZnP to Badt and reduced Badt are thermodynamically feasible. However, the competition of electron transfer from singlet 1*Glu-ZnP to Badt with intersystem crossing from singlet 1*Glu-ZnP to triplet 3*Glu-ZnP, inefficient electron transfer from triplet 3*Glu-ZnP to Badt, and the lower energy of triplet 3*Glu-ZnP and possible 3*Badt to that of yielded charge-separated state of Glu-ZnP+·-Badt−· were believed to be the obstacles for efficient hydrogen evolution.

Modulating photogenerated electron transfer with selectively exposed Co–Mo facets on a novel amorphous g-C3N4/CoxMo1−xS2 photocatalyst

RSC Advances ◽  
2016 ◽  
Vol 6 (28) ◽  
pp. 23709-23717 ◽  
Author(s):  
Xuqiang Hao ◽  
Zhiliang Jin ◽  
Shixiong Min ◽  
Gongxuan Lu
Keyword(s):  
Electron Transfer ◽  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Photogenerated Electron ◽  
Photocatalytic Hydrogen Evolution ◽  
Exposed Facets

Novel photocatalysts, g-C3N4/Co0.04Mo0.96S2 with different exposed facets of Co–Mo, were employed as catalysts for the examination of facet-dependent catalytic activity toward photocatalytic hydrogen evolution.

scholarly journals Photoinduced Hydrogen-Evolution System with an Antibody–Porphyrin Complex as a Photosensitizer

2009 ◽  
Vol 82 (11) ◽  
pp. 1341-1346 ◽  
Author(s):  
Hiroyasu Yamaguchi ◽  
Takeshi Onji ◽  
Hidetaka Ohara ◽  
Noriaki Ikeda ◽  
Akira Harada
Keyword(s):  
Hydrogen Evolution ◽  
Evolution System ◽  
Porphyrin Complex

Stress–strain behavior in uniaxial compression of polymer gel beads

2006 ◽  
Vol 102 (3) ◽  
pp. 3037-3047 ◽  
Author(s):  
Runi D. Egholm ◽  
Søren F. Christensen ◽  
Peter Szabo
Keyword(s):  
Uniaxial Compression ◽  
Polymer Gel ◽  
Stress Strain ◽  
Strain Behavior ◽  
Gel Beads
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