Results 11 to 20 of about 167,769 (338)

Synthesis of chiral germanium center enabled by poly-deborylative alkylation and desymmetrization [PDF]

Nature Communications
Chiral germanium centers are historically undervalued due to their extremely limited synthetic accessibility. Although germanium shares similar chemical properties with silicon, synthesizing chiral germanium centers proves significantly more challenging.
Ke Wang, Xin-Yuan Liu, Zhe Dong
doaj   +2 more sources

Challenges and Opportunities in Hydrometallurgical Recovery of Germanium from Coal By-Products [PDF]

Molecules
Germanium, a critical material for advanced technologies, is enriched in certain coal deposits and by-products, including coal combustion and gasification fly ashes. This review examines germanium concentrations and occurrence modes in coal, coal gangue,
Ewa Rudnik
doaj   +2 more sources

Geochemical Characteristics and Influencing Factors of Germanium-enriched Soils in Nehe City, Heilongjiang Province

Yankuang ceshi, 2022
BACKGROUND Germanium is an essential element for life. With the discovery of germanium-enriched soils all over China in recent years, the development of germanium-enriched agriculture has gradually gained attention.
ZHAO Jun, RAO Zhu, WANG Peng, ZHANG Zhehuan, LIANG Shuai, WANG Yuehua   +5 more
doaj   +1 more source

Study on the mechanism of ultrasonic enhanced removal of zinc and germanium from lead residue

Journal of Saudi Chemical Society, 2023
Lead residue is the residue from the leaching process of zinc oxide dust containing germanium, which comprises a certain amount of valuable elements such as zinc and germanium.
Ming Liang, Leiting Song, Haokai Di, Yan Hong, Junchang Liu, Kun Yang, Libo Zhang   +6 more
doaj   +1 more source

Research on the mechanism of lead sulfate adsorption of germanium and ultrasonic inhibition during the leaching process of zinc oxide dust containing germanium

Journal of Saudi Chemical Society, 2023
In response to the problem of germanium adsorption loss caused by lead sulfate adsorption during the leaching process of zinc oxide dust containing germanium, this article simulates and identifies the mechanism of lead sulfate adsorbing germanium, and ...
Ming Liang, Leiting Song, Haokai Di, Yan Hong, Jie Dai, Junchang Liu, Kun Yang, Libo Zhang   +7 more
doaj   +1 more source

The States and Properties of Germanium in Sulfuric Acid Solution

Metals, 2023
In recent years, with the development of science and technology, the strategic position of germanium is becoming more and more important, and the global demand for germanium is also increasing. At present, there is no unified description of the existence
Leiting Song, Haokai Di, Ming Liang, Yan Hong, Yiner Zeng, Kun Yang, Libo Zhang   +6 more
doaj   +1 more source

Electronegativity and doping in Si1-xGex alloys [PDF]

, 2020
Silicon germanium alloys are technologically important in microelectronics but also they are an important paradigm and model system to study the intricacies of the defect processes on random alloys.
Christopoulos, Stavros, Chroneos, Alexander, Kuganathan, Navaratnarajah   +2 more
core   +1 more source

Unusual nuclear exchange within a germanium-containing aromatic ring that results in germanium atom transfer

Nature Communications, 2023
The delivery of single atoms is highly desirable for the straightforward synthesis of complex molecules, however this approach is limited by a lack of suitable atomic transfer reagents.
Ryohei Nishino, Norihiro Tokitoh, Ryuto Sasayama, Rory Waterman, Yoshiyuki Mizuhata   +4 more
doaj   +1 more source

Germanium compounds and their role in animal body

Біологія тварин, 2022
Last years literature data and separate research results analysis was carried out concerning biological influence of Germanium compounds at laboratory and productive animals.
R. S. Fedoruk, I. I. Kovalchuk, L. M. Mezentseva, U. I. Tesarivska, A. Z. Pylypets, V. H. Kaplunenko   +5 more
doaj   +1 more source

Intensity of Radiative Recombination in the Germanium/Silicon Nanosystem with Germanium Quantum Dots

Crystals, 2021
It is shown that in a germanium/silicon nanosystem with germanium quantum dots, the hole leaving the germanium quantum dot causes the appearance of the hole energy level in the bandgap energy in a silicon matrix.
Sergey I. Pokutnyi, Lucjan Jacak
doaj   +1 more source