CN115305496A - 一种稀土铈掺杂磷化钴/磷化铁异质材料的制备方法和应用 - Google Patents
一种稀土铈掺杂磷化钴/磷化铁异质材料的制备方法和应用 Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 229910017052 cobalt Inorganic materials 0.000 title claims abstract description 13
- 239000010941 cobalt Substances 0.000 title claims abstract description 13
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 title claims abstract description 10
- VAKIVKMUBMZANL-UHFFFAOYSA-N iron phosphide Chemical compound P.[Fe].[Fe].[Fe] VAKIVKMUBMZANL-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 9
- 239000002086 nanomaterial Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003054 catalyst Substances 0.000 claims abstract description 13
- 239000002243 precursor Substances 0.000 claims abstract description 10
- 239000004094 surface-active agent Substances 0.000 claims abstract description 9
- 238000003837 high-temperature calcination Methods 0.000 claims abstract description 6
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000033228 biological regulation Effects 0.000 claims abstract description 3
- 239000012279 sodium borohydride Substances 0.000 claims abstract description 3
- 229910000033 sodium borohydride Inorganic materials 0.000 claims abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000001354 calcination Methods 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000012266 salt solution Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 150000001868 cobalt Chemical class 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- -1 rare earth cerium salt Chemical class 0.000 claims description 6
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 5
- 150000002505 iron Chemical class 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical group [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 4
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical group [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical group [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 3
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 3
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 3
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 150000000703 Cerium Chemical class 0.000 claims description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 2
- 239000012448 Lithium borohydride Substances 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical group [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- MCDLETWIOVSGJT-UHFFFAOYSA-N acetic acid;iron Chemical compound [Fe].CC(O)=O.CC(O)=O MCDLETWIOVSGJT-UHFFFAOYSA-N 0.000 claims description 2
- VYLVYHXQOHJDJL-UHFFFAOYSA-K cerium trichloride Chemical compound Cl[Ce](Cl)Cl VYLVYHXQOHJDJL-UHFFFAOYSA-K 0.000 claims description 2
- VGBWDOLBWVJTRZ-UHFFFAOYSA-K cerium(3+);triacetate Chemical compound [Ce+3].CC([O-])=O.CC([O-])=O.CC([O-])=O VGBWDOLBWVJTRZ-UHFFFAOYSA-K 0.000 claims description 2
- 229940011182 cobalt acetate Drugs 0.000 claims description 2
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 claims description 2
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical group [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 2
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 2
- 229940044175 cobalt sulfate Drugs 0.000 claims description 2
- 229910000361 cobalt sulfate Inorganic materials 0.000 claims description 2
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 claims description 2
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 239000011790 ferrous sulphate Substances 0.000 claims description 2
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 229920000428 triblock copolymer Polymers 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 abstract description 11
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000001878 scanning electron micrograph Methods 0.000 description 4
- 229910052684 Cerium Inorganic materials 0.000 description 3
- 239000012300 argon atmosphere Substances 0.000 description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 3
- 229910000000 metal hydroxide Inorganic materials 0.000 description 3
- 150000004692 metal hydroxides Chemical class 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229910002554 Fe(NO3)3·9H2O Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910021397 glassy carbon Inorganic materials 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/055—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material
- C25B11/057—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material consisting of a single element or compound
- C25B11/065—Carbon
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- C25B1/00—Electrolytic production of inorganic compounds or non-metals
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Abstract
本发明属于纳米材料制备技术领域,公开了一种稀土铈掺杂磷化钴/磷化铁异质材料的制备方法和应用。在表面活性剂的调控下,利用硼氢化钠等碱性试剂制备Ce‑CoFe‑LDH纳米材料为前驱体,利用高温煅烧的方法制备Ce‑CoP/FeP纳米材料。本发明提供的制备方法简单、绿色无污染,实用化程度高,且得到的Ce‑CoP/FeP纳米材料可作为电解水的析氢/析氧双功能催化剂使用。
Description
技术领域
本发明涉及一种稀土铈掺杂磷化钴磷化铁异质材料的制备与应用,属于纳米材料制备技术领域。
背景技术
在传统化石燃料能源危机与环境污染的背景下,亟需寻找一种可替代化石燃料的新能源。氢气因其热值高、零污染等优点,被视为未来能源。通过电解水得到的氢气纯净度高、被认为是绿色氢气,其电力可来源于太阳能、风能以及潮汐能等可再生能源,因此电解水制氢技术被认为是最有前景的制氢技术。电解水包括析氢和析氧半反应,目前其商用贵金属催化剂(Ir、Pt等)稳定性差、价格昂贵、储量低等因素限制了其应用。金属磷化物因其丰富的物相、独特的电子结构,在电催化领域中备受关注。
铈基化合物是一种常见的稀土材料,其具有储量高、价格低、性质稳定、易于储存等优点,通常情况下铈是以CeO2的状态存在。并且其具有灵活的氧化还原对“Ce3+/Ce4+”,有利于电子传输,因此在催化剂研究领域受到了广泛地关注。目前已经应用于电解水反应,大量的研究表明(Angew.Chem.,Int.Ed.2018,57,1616;Nanoscale Adv.2019,1,3686;J.Power Sources2021,512,230514;Small 2022,18,e2106592;ACS SustainableChem.Eng.2021,9,11981.),催化剂中掺杂稀土铈会影响催化剂表面的微观结构,从而优化其催化性能。非贵金属Ce-CoP/FeP系列催化剂因其来源广泛、性能优异、稳定性好等优点展现了巨大的应用潜力。
通常,以金属氢氧化物作为前驱体,通过高温煅烧可以制备磷化物(ACSAppl.Energy Mater.2020,3,8075.)、硫化物(Mater.Today Energy2021,21,100741.)、硒化物(ACS Appl.Energy Mater.2021,4,12998.)等纳米材料。在氩气气氛下磷化金属氢氧化物前驱体,制备的磷化物分散性好、具有可控的形貌以及优异的电化学催化性能。因此本发明采用金属氢氧化物作为前驱体制备Ce-CoP/FeP纳米材料,对于电解水研究具有至关重要的应用价值。
发明内容
本发明的目的是提供一种稀土铈掺杂磷化钴/磷化铁异质材料的制备方法和应用
本发明的技术方案:
一种稀土铈掺杂磷化钴/磷化铁异质材料的制备方法,在表面活性剂的调控下,通过碱性试剂制备Ce-CoFe-LDH,利用高温煅烧途径进而制备铈掺杂磷化钴/磷化铁异质纳米材料(Ce-CoP/FeP),步骤如下:
(1)将稀土铈盐、钴盐、铁盐溶于水中,控制三者的摩尔比为1~3:20~40:4~20,室温下搅拌均匀得到金属盐溶液;将含有表面活性剂的水溶液倒入金属盐溶液中,控制表面活性剂摩尔数:钴与铁盐总摩尔数=0.5~1:1,搅拌混合;然后将碱性水溶液滴加入上述溶液中,控制碱性物质摩尔数:钴与铁盐总摩尔数=1~2:1;将得到的产物分别用去离子水和乙醇离心洗涤后进行干燥,得到前驱体Ce-CoFe-LDH纳米材料;
(2)将质量比为1:10~1:30的前驱体Ce-CoFe-LDH纳米材料与NaH2PO2置于管式炉中,在200℃~600℃温度条件下煅烧1~3h,得到Ce-CoP/FeP纳米材料。
所述的钴盐为硝酸钴、氯化钴、醋酸钴或硫酸钴。
所述的铁盐为硝酸铁、氯化铁、醋酸亚铁或硫酸亚铁。
所述的铈盐为硝酸铈、氯化铈或醋酸铈。
所述的表面活性剂为十六烷基三甲基氯化铵(CTAC)、十六烷基三甲基溴化铵(CTAB)、聚乙烯吡咯烷酮(PVP)、聚环氧乙烷-聚环氧丙烷-聚环氧乙烷三嵌段共聚物(P123)或乙二醇(EG)。
所述的碱性试剂为硼氢化钾、硼氢化钠、硼氢化锂、碳酸钠或碳酸钾。
步骤(1)中,干燥温度为50~80℃,干燥时间为8~24h,优选为8~12h。
步骤(2)中,煅烧优选温度为300~400℃。
Ce-CoP/FeP纳米材料作为催化剂使用。
本发明的有益效果:本发明制备的Ce-CoP/FeP纳米材料具有独特的片状结构、将其作为催化剂时,在碱性条件下表现出良好的电催化活性。并且该制备方法简单、原料易得、实用价值高,对于催化剂的设计制备以及应用具有重要的意义。
附图说明
图1为实施例1中Co:Fe=3:1,制备的CoFe-LDH纳米材料的扫描电镜图。
图2为实施例2中Co:Fe:Ce=30:10:1,制备的Ce-CoFe-LDH纳米材料的扫描电镜图。
图3为实施例3中Co:Fe=3:1,CoP/FeP纳米材料的扫描电镜图。
图4为实施例4中Co:Fe:Ce=30:10:1,Ce-CoP/FeP纳米材料的扫描电镜图。
图5为实施例5所测试的CoP/FeP与Ce-CoP/FeP纳米材料的析氢催化性能。
图6为实施例5所测试的CoP/FeP与Ce-CoP/FeP纳米材料的析氧催化性能。
图7为实施例6所测试的CoP/FeP与Ce-CoP/FeP纳米材料的XPS。
具体实施方式
以下结合附图和技术方案,进一步说明本发明的具体实施方案。
实施例1
制备CoFe-LDH纳米材料
将Co(NO3)2·6H2O(436.5mg),Fe(NO3)3·9H2O(201.9mg)溶于水(15mL)中,室温下搅拌10min;将含有CTAB(500mg)的10mL水溶液并倒入到盐溶液中;然后将NaBH4(100mg)溶于10mL水中,并向金属盐溶液中滴加NaBH4溶液,用时30min。然后将得到产物用H2O和乙醇离心后在80℃条件下干燥8h,得到前驱体CoFe-LDH。
实施例2
制备Ce-CoFe-LDH纳米材料
将Ce(NO3)3·6H2O(21.7mg),Co(NO3)2·6H2O(436.5mg),Fe(NO3)3·9H2O(201.9mg)溶于水(15mL)中,室温下搅拌10min;将含有CTAB(500mg)的10mL水溶液并倒入到盐溶液中;然后将NaBH4(100mg)溶于10mL水中,并向金属盐溶液中滴加NaBH4溶液,用时30min。然后将得到产物用H2O和乙醇离心后在60℃条件下干燥12h,得到前驱体Ce-CoFe-LDH。
实施例3
制备CoP/FeP纳米材料
将实例1中的CoFe-LDH纳米材料(20mg)放入瓷舟中置于管式炉下游,将Na2H2PO2(400mg)置于管式炉上游,在氩气气氛下进行高温煅烧。煅烧温度为300℃,升温速度2℃/min,煅烧时间为2h。
实施例4
制备Ce-CoP/FeP纳米材料
将实例2中的Ce-CoFe-LDH纳米材料(20mg)放入瓷舟中置于管式炉下游,将Na2H2PO2(400mg)置于管式炉上游,在氩气气氛下进行高温煅烧。煅烧温度为300℃,升温速度2℃/min,煅烧时间为2h。
用扫描电子显微镜表征所制备CoFe-LDH的形貌。如图1所示,所得的CoFe-LDH呈纳米片堆积的小颗粒结构,小颗粒的尺寸为200nm左右。
用扫描电子显微镜表征所制备Ce-CoFe-LDH的形貌。如图2所示,所得的Ce-CoFe-LDH的尺寸与形貌和CoFe-LDH相似。
对CoFe-LDH纳米颗粒高温处理后,获得颗粒状更加明显的CoP/FeP纳米颗粒,如图3所示,煅烧后得到的颗粒尺寸几乎没有变化。
用扫描电子显微镜表征得到的Ce-CoP/FeP异质材料。如图4所示,所得的Ce-CoP/FeP异质材料基本保持了Ce-CoFe-LDH的形貌。
实施例5
Ce-CoP/FeP与CoP/FeP纳米材料催化性能测试
通过电化学工作站对其进行测试,如图5与图6所示,在极化曲线上研究Ce-CoP/FeP与CoP/FeP的析氢和析氧电催化性能。制备电极过程如下,称取4mg催化剂于2mL离心管,然后加入H2O、EtOH各480μL,最后加入Nafion40μL,混合均匀后超声30min。将制备好的墨水每次取8μL涂敷在直径为5mm的玻碳电极上风干,重复两次。将制备好的电极置入电解池中,铂片为对电极,HgO/Hg电极为参比电极。催化剂的活性用极化曲线中10mAcm-2处的过电势来评估,过电势越低,说明催化活性越好,由此可知Ce的引入对析氢和析氧催化活性的提升起到重要作用。
实施例6
Ce-CoP/FeP与CoP/FeP纳米材料化学结构测试
通过XPS对其进行表征,如图7所示,Ce的引入改变了催化剂内部的电子结构,因此通过该合成方法对电催化性能的提升有着重要的意义。
Claims (7)
1.一种稀土铈掺杂磷化钴/磷化铁异质材料的制备方法,在表面活性剂的调控下,通过碱性试剂制备Ce-CoFe-LDH,利用高温煅烧途径进而制备铈掺杂磷化钴/磷化铁异质纳米材料Ce-CoP/FeP,其特征在于,步骤如下:
(1)将稀土铈盐、钴盐、铁盐溶于水中,控制三者的摩尔比为1~3:20~40:4~20,室温下搅拌均匀得到金属盐溶液;将含有表面活性剂的水溶液倒入金属盐溶液中,控制表面活性剂摩尔数:钴与铁盐总摩尔数=0.5~1:1,搅拌混合;然后将碱性水溶液滴加入上述溶液中,控制碱性物质摩尔数:钴与铁盐总摩尔数=1~2:1;将得到的产物分别用去离子水和乙醇离心洗涤后进行干燥,得到前驱体Ce-CoFe-LDH纳米材料;
(2)将质量比为1:10~1:30的前驱体Ce-CoFe-LDH纳米材料与NaH2PO2置于管式炉中,在200℃~600℃温度条件下煅烧1~3h,得到Ce-CoP/FeP纳米材料。
2.根据权利要求1所述的制备方法,其特征在于,
所述的钴盐为硝酸钴、氯化钴、醋酸钴或硫酸钴;
所述的铁盐为硝酸铁、氯化铁、醋酸亚铁或硫酸亚铁;
所述的铈盐为硝酸铈、氯化铈或醋酸铈。
3.根据权利要求1所述的制备方法,其特征在于,
所述的表面活性剂为十六烷基三甲基氯化铵、十六烷基三甲基溴化铵、聚乙烯吡咯烷酮、聚环氧乙烷-聚环氧丙烷-聚环氧乙烷三嵌段共聚物或乙二醇。
4.根据权利要求1所述的制备方法,其特征在于,
所述的碱性试剂为硼氢化钾、硼氢化钠、硼氢化锂、碳酸钠或碳酸钾。
5.根据权利要求1所述的制备方法,其特征在于,
步骤(1)中,干燥温度为50~80℃,干燥时间为8~24h。
6.根据权利要求1所述的制备方法,其特征在于,
步骤(2)中,煅烧温度为300~400℃。
7.权利要求1-6任一所述的制备方法得到的CeO2-CoP/FeP纳米材料作为催化剂使用。
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