نتایج جستجو برای: clean hydrogen

تعداد نتایج: 176961  

Journal: :Physical chemistry chemical physics : PCCP 2006
Xiu-Li Yin Alexander Birkner Kathrin Hänel Thomas Löber Ulrich Köhler Christof Wöll

The adsorption of atomic hydrogen on a single crystal ZnO(1010) surface has been studied by scanning tunneling microscopy (STM) under ultrahigh vacuum conditions at room temperature and at elevated temperatures. High resolution STM images indicate that a well-ordered (1x1) H adlayer is formed on the ZnO(1010) surface. The STM data strongly indicate that the hydrogen adsorbs on top of the oxygen...

2015
Heyang Yuan Yaobin Lu Ibrahim M Abu-Reesh Zhen He

BACKGROUND While microbial electrolysis cells (MECs) can simultaneously produce bioelectrochemical hydrogen and treat wastewater, they consume considerable energy to overcome the unfavorable thermodynamics, which is not sustainable and economically feasible in practical applications. This study presents a proof-of-concept system in which hydrogen can be produced in an MEC powered by theoretical...

Journal: :C&EN global enterprise 2023

While editing this week’s cover story on the electrolyzers needed for clean hydrogen production, I couldn’t help wondering if producing H 2 really makes sense a national scale (page 24). The idea is to run low-carbon electricity through that split water into and oxygen. can then be stored used as fuel or raw material in place of oil natural gas. It’s nice idea, one already being carried out lim...

2015
Min-Rui Gao Jin-Xia Liang Ya-Rong Zheng Yun-Fei Xu Jun Jiang Qiang Gao Jun Li Shu-Hong Yu

The electroreduction of water for sustainable hydrogen production is a critical component of several developing clean-energy technologies, such as water splitting and fuel cells. However, finding a cheap and efficient alternative catalyst to replace currently used platinum-based catalysts is still a prerequisite for the commercialization of these technologies. Here we report a robust and highly...

2017
Martin J. Taylor Li Jiang Joachim Reichert Anthoula C. Papageorgiou Simon K. Beaumont Karen Wilson Adam F. Lee Johannes V. Barth Georgios Kyriakou

Furfural is a key bioderived platform chemical whose reactivity under hydrogen atmospheres affords diverse chemical intermediates. Here, temperature-programmed reaction spectrometry and complementary scanning tunneling microscopy (STM) are employed to investigate furfural adsorption and reactivity over a Pt(111) model catalyst. Furfural decarbonylation to furan is highly sensitive to reaction c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه پلیمر و پتروشیمی ایران - پژوهشکده پتروشیمی 1389

this is an original study on the effect of a polyisobutylene – polydimethylsiloxane (pibpdms) block copolymer modifier used as an interfacial active agent on the dynamics behaviour of single newtonian drops suspended in a polyisobutylene (pib) newtonian matrix. the results were divided in two sections. the first part included the experiments carried out on the non-modified and 2% block cop...

Journal: :Nanoscale 2015
Jun Seop Lee Sung Gun Kim Sunghun Cho Jyongsik Jang

Hydrogen, a clean-burning fuel, is of key importance to various industrial applications, including fuel cells and in the aerospace and automotive industries. However, hydrogen gas is odorless, colorless, and highly flammable; thus appropriate safety protocol implementation and monitoring are essential. Highly sensitive hydrogen leak detection and surveillance sensor systems are needed; addition...

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 ...

2014
Chih-Hung Huang Chung-Sung Tan

Global warming due to the accumulation of atmospheric CO2 has received widespread attention in recent years. Although various CO2 capture technologies have been proposed, using the captured CO2 from power plants is increasingly popular because of concerns with regard to the safety of underground and ocean CO2 storage. Various techniques related to utilization of CO2 from the exhausted gas of po...

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