HAUSMANNITE

作品数：5被引量：8H指数：1
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Low-temperature catalytic methane deep oxidation over sol-gel derived mesoporous hausmannite (Mn_(3)O_(4)) spherical particles
《ChemPhysMater》2024年第3期329-340,共12页Patrick Ndouka Ndouka Stephane Kenmoe Jacques Richard Mache Elie Acayanka Dick Hartmann Douma Ralph Gebauer Patrick Mountapmbeme Kouotou 
S.K.acknowledges computing time granted by the Center for Computational Sciences and Simulation(CCSS);the Universität DuisburgEssen and provided on the supercomputer magnitude(DFG grants INST 20876/209-1 FUGG,INST 20876/243-1 FUGG);the Zentrum für Informations-und Mediendienste(ZIM).S.K.gratefully acknowledges the Deutsche Forschungsgemeinschaft(DFG,German Research Foundation)for funding 388390466-TRR 247.
In this study,Mn_(3)O_(4) spherical particles(SPs)were synthesized by the sol-gel process,after which they were thermally annealed at 400℃,and comprehensively characterized.X-ray Diffraction(XRD)revealed that Mn_(3)O...
关键词：SOL-GEL Manganese oxide Catalytic oxidation METHANE Langmuir−Hinshelwood mechanism Mars−van Krevelen route Two−term process 
Effects of cobalt doping on the reactivity of hausmannite for As(Ⅲ)oxidation and As(Ⅴ)adsorption
《Journal of Environmental Sciences》2022年第12期217-226,共10页Shuang Zhang Hui Li Zhongkuan Wu Jeffrey EPost Bruno Lanson Yurong Liu Biyun Hu Mingxia Wang Limei Zhang Mei Hong Fan Liu Hui Yin 
supported by the Key science and Technology Projects of Inner Mongolia Autonomous Region(No.2019ZD001);the National Natural Science Foundation of China(Nos.42077015,41771267 and 41877030);the National Key Research and Development Program of China(No.2016YFD0800403);the Fundamental Research Funds for the Central Universities(No.103-510320036)。
Hausmannite is a common low valence Mn oxide mineral,with a distorted spinel structure,in surficial sediments.Although natural Mn oxides often contain various impurities of transitional metals(TMs),few studies have ad...
关键词：Mn oxide HAUSMANNITE TRANSITION-METAL Cobalt Arsenate adsorption Arsenite oxidation 
A facile preparation of hausmannite as a high-performance catalyst for toluene combustion被引量：1
《Chinese Journal of Chemical Engineering》2022年第4期392-401,共10页Qi Liu Gao Cheng Ming Sun Weixiong Yu Xiaohong Zeng Shichang Tang Yongfeng li Lin Yu 
supported by the National Natural Science Foundation of China(Nos.21306026,21576054);Natural Science Foundation of Guangdong Province(No.2018A030310563);the Foundation of Higher Education of Guangdong Province(2018KZDXM031)。
Mesoporous transition metal oxide catalysts are well-used in the elimination of volatile organic compounds.In this study,we developed an efficient method for the preparation of mesoporous-Mn_(3)O_(4)(mMn_(3)O_(4))with...
关键词：CATALYSIS NANOMATERIALS Environment TOLUENE Solvents Mn_(3)O_(4) 
Strong interfacial charge transfer between hausmannite manganese oxide and alumina for efficient photocatalysis
《Chinese Journal of Chemical Engineering》2021年第5期147-159,共13页Aisha Kanwal Shamaila Sajjad Sajjad Ahmed Khan Leghari Muhammad Naeem Khan 
The work is acknowledged to H-10,Islamabad,Higher Education of Commission of Pakistan (NRPU Grant No. 3660);International Islamic University,H-10,Islamabad,and Pakistan Institute of Engineering and Applied Sciences. We are very much grateful to School of Environmental and Chemical Engineering,Shanghai Jiao Tong University,Shanghai,China,University of the Punjab Lahore,Government College University Lahore,National Centre of Physics,Institute of Space Technology and Allama Iqbal Open University Islamabad for analysis.
Well crystalline manganese oxide(Mn_(3)O_(4))nanoparticles anchored on gamma alumina(γ-Al_(2)O_(3))have been successfully tailored via a proficient and cost effective chemical process as an efficient material for pho...
关键词：HAUSMANNITE Mn_(3)O_(4) ALUMINA Band gap tuning INTERFACIAL charge transfer NANOMATERIALS Catalysis 
Pathways of birnessite formation in alkali medium被引量：7
《Science China Earth Sciences》2005年第9期1438-1451,共14页FENG Xionghan1, TAN Wenfeng1, LIU Fan1, HUANG Qiaoyun1 & LIU Xiangwen2 1. College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China 2. Testing Center, China University of Geosciences, Wuhan 430074, China 
supported by the National Natural Science Foundation of China(Grant Nos.40403009 and 40101017);by Research Fund for the Doctoral Program of Higher Education(Grant No.2002050411).
Birnessite is a common weathering and oxidation product of manganese-bearing rocks. An O2 oxidation procedure of Mn(OH)2 in the alkali medium has been used to synthesize birnessite. Fast and powder X-ray diffraction (...
关键词：birnessite  pathway of formation  reaction process  Eh-pH diagram  hausmannite  feitknechtite. 
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