Method for measuring contents of rare earth and trace elements in nickel-plated neodymium iron boron matrix by ICP-AES (inductively coupled plasma-atomic emission Spectrometry)
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Ultrasonic spraying method for preparing porous catalyst layer of membrane electrode of fuel cell
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Method for synthesizing 3, 6-dibromo-9-bromophenyl-9H-carbazole
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Method for preparing core-shell type ternary positive electrode material by using waste lithium battery
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Method for synthesizing high-purity 3-bromo-N-phenylcarbazole
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Method for recovering valuable metals from waste lithium ion batteries
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Method for recovering metal from waste lithium battery positive electrode material
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Catalyst for solid polymer fuel cell and preparation method thereof
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Preparation method for synthesizing N-phenylcarbazole and recovery method of catalyst
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Recovery method of waste powder produced in ternary material production
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Method for recycling and preparing olivine type five-element high-entropy lithium battery precursor
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Anisotropic inner circle orientation multi-pole magnetic ring and die and preparation method thereof
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Method for recovering sulfate solution from waste ternary batteries
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Preparation method of 4-bromocarbazole
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Method for preparing nickel-cobalt-iron-aluminum-magnesium five-element high-entropy material, product and application
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Lithium ion battery anode material precursor and preparation method thereof
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Method for preparing iron oxide red by using ferrous sulfate as byproduct of titanium dioxide, product and application
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Crushing-method Fe-Si-Al soft magnetic powder core and preparation method thereof
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Composite Fe-Si-Al soft magnetic powder core and preparation method thereof
