نتایج جستجو برای: alkaline earth compounds

تعداد نتایج: 356757  

Journal: :Physical chemistry chemical physics : PCCP 2013
ZhenHua Zeng Federico Calle-Vallejo Mogens B Mogensen Jan Rossmeisl

Generalized trends in the formation energies of several families of perovskite oxides (ABO3) and plausible explanations to their existence are provided in this study through a combination of DFT calculations, solid-state physics analyses and simple physical/chemical descriptors. The studied elements at the A site of perovskites comprise rare-earth, alkaline-earth and alkaline metals, whereas 3d...

2018
Brian M. Waters Keenan Amundsen George Graef

Alkaline soils comprise 30% of the earth and have low plant-available iron (Fe) concentration, and can cause iron deficiency chlorosis (IDC). IDC causes soybean yield losses of $260 million annually. However, it is not known whether molecular responses to IDC are equivalent to responses to low iron supply. IDC tolerant and sensitive soybean lines provide a contrast to identify specific factors ...

Journal: :Le Journal de Physique Colloques 1976

Journal: :ACS Sustainable Chemistry & Engineering 2022

Alkaline-earth-metal ions accelerate the breaking of cellulose bonds and control distribution products in pyrolysis lignocellulose to biofuels chemicals. Here, activation via magnesium was measured over a range temperatures from 370 430 °C for 20–2000 ms compared with calcium, another naturally occurring alkaline earth metal materials. The experimental approach pulse-heated analysis solid/surfa...

Journal: :Chemical & pharmaceutical bulletin 2009
Yukio Nohara Tomomi Usui Junko Suzuki Toshihiko Hanai Toshio Kinoshita Kazuya Nakagomi Mitsuo Watanabe

It is shown that o-carboxyphenylglyoxal, which is converted from ninhydrin by alkali, produces a chemiluminescent lucigenin reaction under alkaline conditions when with reacted with guanidino compounds. It is also demonstrated that phenylglyoxal, which is a model compound of o-carboxyphenylglyoxal, produces a strong chemiluminescent lucigenin reaction under alkaline conditions when reacted with...

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