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18篇 您的检索式:作者名="M.A.K"
    题名 作者 年代 出处 被引量
1Greenhouse gases and other airborne pollutants from household stoves in China: a database for emission factors显示文摘J Zhang K.R Smith Y Ma S Ye F Jiang W Qi P Liu M.A.K Khalil R.A Rasmussen S.A Thorneloe 2000Atmospheric Environment2000,,26:1
2System and text:Making links显示文摘Halliday M.A.K Hasan R 0,,02:1
3Notes on transitivity and theme in English显示文摘Halliday M.A.K 0,,03:1
4Functionaldiversityinlanguageasseenfromaconsideration of modalityandmoodin English显示文摘Halliday M.A.K 0,,:1
5Notes on Transitivity and Theme in English显示文摘Halliday M.A.K 0,,03:1
6Towards a language-based theory of learning显示文摘Halliday M.A.K 0,,2:1
7Categories of the theory of grammar显示文摘Halliday M.A.K 0,,:1
8Categories of the Theory of Grammar显示文摘Halliday M.A.K 0,,:1
9Notes on Transitivity and Theme in English (Part 2)显示文摘Halliday M.A.K 0,,:1
10Notes on transitivity and theme in English Part Ⅱ显示文摘Halliday M.A.K 0,,03:1
11Notes on Transitivity and Theme in English (Part II)显示文摘Halliday M.A.K 0,,03:1
12Novel LaFe_(2)O_(4)spinel structure with a large oxygen reduction response towards protonic ceramic fuel cell cathode显示文摘Highly active and stable electrocatalysts are mandatory for developing high-performance and longlasting fuel cells.The current study demonstrates a high oxygen reduction reaction(ORR)electrocatalytic activity of a novel spinel-structured LaFe_(2)O_(4)via a self-doping strategy.The LaFe_(2)O_(4)demonstrates excellent ORR activity in a protonic ceramic fuel cell(PCFC)at temperature range of 350-500℃.The high ORR activity of LaFe_(2)O_(4)is mainly attributed to the facile release of oxide and proton ions,and improved synergistic incorporation abilities associated with interplay of multivalent Fe^(3+)/Fe^(2+)and La^(3+)ions.Using LaFe_(2)O_(4)as cathode over proton conducting BaZr_(0.4)Ce_(0.4)Y_(0.2)O_(3)(BZCY)electrolyte,the fuel cell has delivered a high-power density of 806 mW/cm^(2)operating at 500℃.Different spectroscopic and calculations methods such as UV-visible,Raman,X-ray photoelectron spectroscopy and density functional theory(DFT)calculations were performed to screen the potential application of LaFe_(2)O_(4)as cathode.This study would help in developing functional cobalt-free ORR electrocatalysts for low temperature-PCFCs(LT-PCFCs)and solid oxide fuel cells(SOFCs)applications.Jinping Wang Yuzheng Lu Naveed Mushtaq M.A.K Yousaf Shah Sajid Rauf Peter D.Lund Muhammad Imran Asghar 2023Journal of Rare Earths2023,41,3:1
13The Linguistic Sciences and Language Teaching显示文摘Halliday M.A.K 0,,:1
14Anti-languages显示文摘Halliday M.A.K 0,,:1
15Notes on transitivity and theme in Eng-lish,(Part 2)显示文摘Halliday M.A.K 0,,:1
16Prediction of 137 Cs deposition from atmospheric nuclear weapons tests within the Arctic显示文摘S.M Wright B.J Howard P Strand T Nylén M.A.K Sickel 1998Environmental Pollution1998,,1:1
17Greenhouse gases and other airborne pollutants from household stoves in China: a database for emission factors显示文摘J Zhang K.R Smith Y Ma S Ye F Jiang W Qi P Liu M.A.K Khalil R.A Rasmussen S.A Thorneloe 2000Atmospheric Environment2000,,26:1
18Proton transport controlled at surface layer of CeO_(2) by gradient-doping with a built-in-field effect显示文摘Ceramic fuel cells hold an important position for the sustainable energy future using renewable energy sources with high efficiency.The design and synthesis of active materials,interface engineering and having capability of low operating temperature is considered as an important factor to further increase the power output and stability of ceramic fuel cell devices.A novel methodology has vital importance to develop new functionalities of existing materials by introducing new different effects.The built-in electric field(BIEF) is one of the most recently used approaches to improve charge transfer and ionic conductivity of solid oxide materials.Herein,we demonstrate gradient doping strategy in CeO_(2)-δstructure to produce BIEF effect and to modulate the proton transport effectively at the surface layer rather than bulk structure.The inclusions of La and Sr metal ions at the surface and Co-metal ions into bulk-layer of CeO_(2)form the gradiently doped structure.The gradient doping into CeO_(2)highly improves the proton transport properties through the surface layer by modifying the energy levels.Moreover,unbalanced charge distribution due to gradient doping produces built-in electric-field to provide extra driving force for protons transport through surface layer.The acquired gradiently doped fluorite structure exhibits remarkable proton conductivity of>0.2 S/cm,as a result ceramic fuel cell shows power output of>1000 mW/cm2while operating at 500℃.This unique work highlights the critical role of gradiently doped electrolyte in electrochemical conversion energy devices and offers new understanding and practices for sustainable energy future.Yuzheng Lu Naveed Mushtaq M.A.K Yousaf Shah Sajid Rauf Chen Xia Bin Zhu 2023Journal of Rare Earths2023,41,12:0
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