Results 151 to 160 of about 521,898 (197)

Tracer diffusion of Mn in α-MnS and α-(Mn,Cr)S

Solid State Communications, 1990
Abstract By a radioactive tracer method the bulk self-diffusivity of 54 Mn in α-MnS was determined in the temperature range 873 K to 973 K. The effect was determined of doping the manganese sulphide with chromium. As expected the diffusivity of Mn is increased by the increase of vacancy concentration caused by Cr 3+ ions. Accordingly, the growth of
P. Papaiacovou, K. Hennesen, H.J. Grabke
openaire   +1 more source

Facile preparation of porous Mn/Fe3O4 cubes as peroxymonosulfate activating catalyst for effective bisphenol A degradation

Chemical Engineering Journal, 2019
Metal oxides are potentially interesting catalysts for activating peroxymonosulfate (PMS) for the degradation of recalcitrant contaminants. This study presents a magnetic porous Mn-Fe binary oxide (p-Mn/Fe3O4) in micron-size with abundant micro- and meso-
Jiangkun Du, J. Bao, Y. Liu, S. Kim, D. Dionysiou   +4 more
semanticscholar   +1 more source

Facile synthesis of Mn-doped BiOCl for metronidazole photodegradation: Optimization, degradation pathway, and mechanism

, 2020
Manganese-doped bismuth oxychloride (Mn-BiOCl) photocatalysts were facilely synthesized for the photodegradation of metronidazole (MTZ), and the as-prepared Mn-BiOCl was systematically characterized.
Jinyan Cao, Jianjun Li, W. Chu, Wanglai Cen   +3 more
semanticscholar   +1 more source

Impurity Distribution on the Sites of β-Mn Structure for Mn(Co), Mn(Fe) and Mn(Ni) Alloys

Journal of the Physical Society of Japan, 1989
The occupation probability of impurity atoms, Co, Fe or Ni, on each site of β-Mn structure has been determined by means of neutron diffraction with the single crystal specimens. Almost 90% of the impurity atoms occupy the site I. In the β-Mn(Co) alloy, an atomic long range order of Co impurities on the site I has been discovered below 500 K.
Hisato Oyamatsu, Yutaka Nakai, Nobuhiko Kunitomi   +2 more
openaire   +1 more source

Enhanced degradation of triclosan in heterogeneous E-Fenton process with MOF-derived hierarchical Mn/Fe@PC modified cathode

, 2020
Mn/Fe@porous carbon (PC) was successfully fabricated through a simple carbonization of Mn-doped MIL-53(Fe) precursor and used as cathode modification in hydroxyl radical ( OH) based heterogeneous electro-Fenton (hetero-EF) process for triclosan (TCS ...
Xiaolan Zhou, Dong Xu, Yuancai Chen, Yongyou Hu   +3 more
semanticscholar   +1 more source

V2O5-modified Mn-Ce/AC catalyst with high SO2 tolerance for low-temperature NH3-SCR of NO

Chemical Engineering Journal, 2019
Development of the efficient catalysts with high SO2 tolerance for NH3-SCR is crucial to control NOx emission at low temperature. In this work, Mn-Ce/AC and Mn-Ce-V/AC catalysts were prepared through wet impregnations. The enhanced effects of V2O5 on the
Lijun Jiang, Qingcai Liu, Guangjing Ran, M. Kong, Shan Ren, Jian Yang, Jiangling Li   +6 more
semanticscholar   +1 more source

Highly efficient Mn2O3 catalysts derived from Mn-MOFs for toluene oxidation: The influence of MOFs precursors

, 2020
The effect of Mn-MOFs precursors (Mn-MIL-100, Mn-MOF-74 and Mn-BTC) on the performance of Mn2O3 catalysts pretreated with different atmosphere (Ar, O2 and O2 after Ar treatment) for toluene oxidation is investigated in this work, respectively.
Xiaodong Zhang, X. Lv, Fukun Bi, G. Lu, Yuxing Wang   +4 more
semanticscholar   +1 more source

Mn behaviors in Mn-implanted ZnO

Acta Materialia, 2009
The behavior of Mn when doped into ZnO by ion implantation was investigated by scanning transmission electron microscopy, electron energy loss spectroscopy and dispersive X-ray spectroscopy. Unlike the previously reported case of Co/Ni-implanted ZnO (where Co/Ni nanocrystals were observed.) Mn implantation has been found to induce an O deficiency in ...
Wang, Y., Zou, J., Li, Y.J., Zhang, B., Lu, W.   +4 more
openaire   +3 more sources

Thermodynamics of Mn in Cu-Mn Melts

Metallurgical and Materials Transactions B, 2014
The present work aimed to measure the thermodynamic data of manganese in Cu-Mn melts over a broad manganese concentration range, using the equilibrium among the liquid copper/MnO(s)/CO-CO2 gas mixture in the temperature range from 1673 K to 1873 K (1400 °C to 1600 °C). Darken’s quadratic formalism was introduced to correlate the activity coefficient of
Baijun Yan, Dongdong Guo, Zengwu Zhao, Yan Li   +3 more
openaire   +1 more source

Approach to magnetic saturation in Mn and Mn

Journal of Magnetism and Magnetic Materials, 1986
Abstract High field magnetic moment measurements on dilute Cu Mn and Ag Mn reveal that the magnetic state of an isolated Mn in solution may be compatible with the free ionic spin value S 0 = 5 2 and Lande factor G 0 = 2. The most dilute sample of each system shows this directly, after extrapolation of M vs . ( H -1 )
G.E. Brodale, R.A. Fisher, N.E. Philips, K. Matho   +3 more
openaire   +1 more source