نتایج جستجو برای: hydrogen evolution

تعداد نتایج: 479832  

Journal: :Physical chemistry chemical physics : PCCP 2010
Kazuhiro Takanabe Kumiko Kamata Xinchen Wang Markus Antonietti Jun Kubota Kazunari Domen

Spectral sensitization of a mesoporous graphite carbon nitride (mpg-C(3)N(4)) photocatalyst was investigated by depositing magnesium phthalocyanine (MgPc) to expand the absorption to wavelengths longer than those of the principal mpg-C(3)N(4). The obtained sample, MgPc/Pt/mpg-C(3)N(4) (Pt as a cocatalyst) showed stable photocatalytic evolution of hydrogen from aqueous solution in the presence o...

2016
Haiqing Zhou Fang Yu Yufeng Huang Jingying Sun Zhuan Zhu Robert J Nielsen Ran He Jiming Bao William A Goddard Iii Shuo Chen Zhifeng Ren

With the massive consumption of fossil fuels and its detrimental impact on the environment, methods of generating clean power are urgent. Hydrogen is an ideal carrier for renewable energy; however, hydrogen generation is inefficient because of the lack of robust catalysts that are substantially cheaper than platinum. Therefore, robust and durable earth-abundant and cost-effective catalysts are ...

Clean production of hydrogen from electrochemical water splitting has been known as a green method of fuel production. In this work, electrocatalytic hydrogen evolution reaction (HER) was investigated at new prepared layered double hydroxides (LDH) in acidic solution. NiAl/carbon black (CB) LDH was monitored using x-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, scannin...

2014
Ting Liao Ziqi Sun Chenghua Sun Shi Xue Dou Debra J. Searles

Inorganic nano-graphene hybrid materials that are strongly coupled via chemical bonding usually present superior electrochemical performance. However, how the chemical bond forms and the synergistic catalytic mechanism remain fundamental questions. In this study, the chemical bonding of the MoS2 nanolayer supported on vacancy mediated graphene and the hydrogen evolution reaction of this nanocat...

Journal: :Nature communications 2013
Yu Hang Li Jun Xing Zong Jia Chen Zhen Li Feng Tian Li Rong Zheng Hai Feng Wang P Hu Hui Jun Zhao Hua Gui Yang

Solar-driven water splitting to produce hydrogen may be an ideal solution for global energy and environment issues. Among the various photocatalytic systems, platinum has been widely used to co-catalyse the reduction of protons in water for hydrogen evolution. However, the undesirable hydrogen oxidation reaction can also be readily catalysed by metallic platinum, which limits the solar energy c...

Journal: :The Journal of General Physiology 1942
Hans Gaffron Jack Rubin

1.. After 2 hours of fermentation in nitrogen the metabolism of those algae which were found capable of photoreduction with hydrogen changes in such a way that molecular hydrogen is released from the cell in addition to carbon dioxide. 2. The amount of hydrogen formed anaerobically in the dark depends on the amount of some unknown reserve substance in the cell. More hydrogen is formed in presen...

Journal: :Journal of the American Chemical Society 2011

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