CN110548527A - 一种化学镀制备负载型Ni-Fe-P-MnFeO3电催化剂的方法 - Google Patents
一种化学镀制备负载型Ni-Fe-P-MnFeO3电催化剂的方法 Download PDFInfo
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- 238000007747 plating Methods 0.000 title claims abstract description 65
- 239000000126 substance Substances 0.000 title claims abstract description 54
- 239000010411 electrocatalyst Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 76
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 36
- 239000006260 foam Substances 0.000 claims abstract description 13
- 229910019931 (NH4)2Fe(SO4)2 Inorganic materials 0.000 claims abstract description 12
- 229910017855 NH 4 F Inorganic materials 0.000 claims abstract description 12
- 241000080590 Niso Species 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 12
- 239000011734 sodium Substances 0.000 claims abstract description 12
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims abstract description 12
- 239000001509 sodium citrate Substances 0.000 claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 20
- 239000008367 deionised water Substances 0.000 claims description 20
- 229910021641 deionized water Inorganic materials 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 19
- 238000001035 drying Methods 0.000 claims description 19
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 239000003570 air Substances 0.000 claims description 11
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 11
- 239000011261 inert gas Substances 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 10
- 238000007772 electroless plating Methods 0.000 claims 8
- 208000005156 Dehydration Diseases 0.000 claims 1
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 238000001291 vacuum drying Methods 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 230000004913 activation Effects 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
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- 229910001325 element alloy Inorganic materials 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
本发明提供了一种化学镀制备负载型Ni‑Fe‑P‑MnFeO3电催化剂的方法,其特征在于:载体为经除油、活化处理的泡沫镍,化学镀液组成为2~15g·L‑1NiSO4·6H2O,5~25g·L‑1(NH4)2Fe(SO4)2,2~20g·L‑1NH4F,5~50g·L‑1柠檬酸钠(C6H5Na3O7·2H2O),10~50g·L‑1NaH2PO2·H2O,化学镀液中添加0.2~15g·L‑1粒度为5~500纳米nm的MnFeO3粉体,化学镀温度为75~95℃,时间为0.1~5h,通过化学复合镀法在泡沫镍载体表面制得成分均匀的Ni‑Fe‑P‑MnFeO3电催化剂。该方法具有简单易行、成本低廉、催化性能优异的特点,易于规模化制备,是一种很有前景的催化剂制备方法。
Description
技术领域
本发明涉及一种化学镀制备负载型Ni-Fe-P-MnFeO3电催化剂的方法,具体是一种泡沫镍基体表面负载Ni-Fe-P-MnFeO3电催化剂的复合化学镀制备方法,属于能源材料及电催化技术领域。
背景技术
传统化石能源的枯竭与环境污染成为当前全球共同面对的挑战性问题。氢能作为一种高能量密度、无毒的清洁能源,被广泛认为是未来极具发展潜力的能源之一。电解水析氢是目前最有效的制备高纯氢的方法。从性能和实际应用等多方面考虑,对于电解水阴极析氢材料研究的焦点还是以Ni为基础的过渡族合金材料。Ni基析氢催化材料的研究经历了由单一金属到多元合金再到复合材料的过程,进一步开发廉价的低过电势、快反应速率的新型Ni基析氢催化复合材料,是当前催化析氢材料的研究重点。
本专利通过使用复合化学镀的方法,在化学镀液中加入合适的具有催化活性的钙钛矿氧化物(MnFeO3),于泡沫镍表面制得了成分均匀的Ni-Fe-P-MnFeO3电催化剂。该方法操作简单,催化剂析氢性能优异,易于规模化制备,是一种很有前景的催化剂制备方法。
发明内容
本发明的目的是提供一种化学镀制备负载型Ni-Fe-P-MnFeO3电催化剂的方法,以获得廉价、低过电势、快反应速率的Ni基析氢催化剂。该方法操作简单,易于规模化制备,是一种很有前景的催化剂制备方法。
本发明目的通过如下技术方案实现:
一种化学镀制备负载型Ni-Fe-P-MnFeO3电催化剂的方法,包括如下步骤:
(1)将孔径为0.01~0.1mm、厚度为0.05~50mm的泡沫镍载体,于室温下在丙酮中超声除油5~30min,并在1~5mol·L-1的HCl中超声5~30min去除表面氧化层;
(2)将预处理后的泡沫镍载体用去离子水清洗至无HCl残留,后以无水乙醇进行脱水处理,真空干燥;
(3)化学镀液组成为2~15g·L-1NiSO4·6H2O,5~25g·L-1(NH4)2Fe(SO4)2,2~20g·L-1NH4F,5~50g·L-1柠檬酸钠(C6H5Na3O7·2H2O),10~50g·L-1NaH2PO2·H2O,利用氨水调整镀液pH值至9~12;
(4)将0.2~15g·L-1粒度为5~500nm的MnFeO3粉体加入到化学镀液中,超声分散5~30min;
(5)将预处理后的泡沫镍浸入到温度为75~95℃的化学镀液中,在空气或者氮气或者惰性气体或者超声搅拌下,化学镀时间为0.1~5h。化学镀完成后,将样品取出,用去离子水超声清洗干净并干燥,即获得负载型Ni-Fe-P-MnFeO3电催化剂。
本发明采用化学镀法制备出了Ni-Fe-P-MnFeO3电催化剂,与现有技术相比,本发明具有成本低廉、催化性能优异、方法简单易行等优点。
具体实施方式
通过下面给出的本发明的具体实施例可以进一步清楚地理解本发明,但下述实施例并不是对本发明的限定。
实施例1:
(1)将孔径为0.01~0.1mm、厚度为0.05~50mm的泡沫镍载体,于室温下在丙酮中超声除油5~30min,并在1~5mol·L-1的HCl中超声5~30min去除表面氧化层;
(2)将预处理后的泡沫镍载体用去离子水清洗至无HCl残留,后以无水乙醇进行脱水处理,真空干燥;
(3)化学镀液组成为2~15g·L-1NiSO4·6H2O,5~25g·L-1(NH4)2Fe(SO4)2,2~20g·L-1NH4F,5~50g·L-1柠檬酸钠(C6H5Na3O7·2H2O),10~50g·L-1NaH2PO2·H2O,利用氨水调整镀液pH值至9~12;
(4)将0.5g·L-1粒度为5~500nm的MnFeO3粉体加入到化学镀液中,超声分散5~30min;
(5)将预处理后的泡沫镍浸入到温度为75~95℃的化学镀液中,在空气或者氮气或者惰性气体或者超声搅拌下,化学镀时间为0.1h。化学镀完成后,将样品取出,用去离子水超声清洗干净并干燥,即获得负载型Ni-Fe-P-MnFeO3电催化剂。
实施例2:
(1)将孔径为0.01~0.1mm、厚度为0.05~50mm的泡沫镍载体,于室温下在丙酮中超声除油5~30min,并在1~5mol·L-1的HCl中超声5~30min去除表面氧化层;
(2)将预处理后的泡沫镍载体用去离子水清洗至无HCl残留,后以无水乙醇进行脱水处理,真空干燥;
(3)化学镀液组成为2~15g·L-1NiSO4·6H2O,5~25g·L-1(NH4)2Fe(SO4)2,2~20g·L-1NH4F,5~50g·L-1柠檬酸钠(C6H5Na3O7·2H2O),10~50g·L-1NaH2PO2·H2O,利用氨水调整镀液pH值至9~12;
(4)将1.0g·L-1粒度为5~500nm的MnFeO3粉体加入到化学镀液中,超声分散5~30min;
(5)将预处理后的泡沫镍浸入到温度为75~95℃的化学镀液中,在空气或者氮气或者惰性气体或者超声搅拌下,化学镀时间为0.5h。化学镀完成后,将样品取出,用去离子水超声清洗干净并干燥,即获得负载型Ni-Fe-P-MnFeO3电催化剂。
实施例3:
(1)将孔径为0.01~0.1mm、厚度为0.05~50mm的泡沫镍载体,于室温下在丙酮中超声除油5~30min,并在1~5mol·L-1的HCl中超声5~30min去除表面氧化层;
(2)将预处理后的泡沫镍载体用去离子水清洗至无HCl残留,后以无水乙醇进行脱水处理,真空干燥;
(3)化学镀液组成为2~15g·L-1NiSO4·6H2O,5~25g·L-1(NH4)2Fe(SO4)2,2~20g·L-1NH4F,5~50g·L-1柠檬酸钠(C6H5Na3O7·2H2O),10~50g·L-1NaH2PO2·H2O,利用氨水调整镀液pH值至9~12;
(4)将2.0g·L-1粒度为5~500nm的MnFeO3粉体加入到化学镀液中,超声分散5~30min;
(5)将预处理后的泡沫镍浸入到温度为75~95℃的化学镀液中,在空气或者氮气或者惰性气体或者超声搅拌下,化学镀时间为1h。化学镀完成后,将样品取出,用去离子水超声清洗干净并干燥,即获得负载型Ni-Fe-P-MnFeO3电催化剂。
实施例4:
(1)将孔径为0.01~0.1mm、厚度为0.05~50mm的泡沫镍载体,于室温下在丙酮中超声除油5~30min,并在1~5mol·L-1的HCl中超声5~30min去除表面氧化层;
(2)将预处理后的泡沫镍载体用去离子水清洗至无HCl残留,后以无水乙醇进行脱水处理,真空干燥;
(3)化学镀液组成为2~15g·L-1NiSO4·6H2O,5~25g·L-1(NH4)2Fe(SO4)2,2~20g·L-1NH4F,5~50g·L-1柠檬酸钠(C6H5Na3O7·2H2O),10~50g·L-1NaH2PO2·H2O,利用氨水调整镀液pH值至9~12;
(4)将3.0g·L-1粒度为5~500nm的MnFeO3粉体加入到化学镀液中,超声分散5~30min;
(5)将预处理后的泡沫镍浸入到温度为75~95℃的化学镀液中,在空气或者氮气或者惰性气体或者超声搅拌下,化学镀时间为3h。化学镀完成后,将样品取出,用去离子水超声清洗干净并干燥,即获得负载型Ni-Fe-P-MnFeO3电催化剂。
实施例5
(1)将孔径为0.01~0.1mm、厚度为0.05~50mm的泡沫镍载体,于室温下在丙酮中超声除油5~30min,并在1~5mol·L-1的HCl中超声5~30min去除表面氧化层;
(2)将预处理后的泡沫镍载体用去离子水清洗至无HCl残留,后以无水乙醇进行脱水处理,真空干燥;
(3)化学镀液组成为2~15g·L-1NiSO4·6H2O,5~25g·L-1(NH4)2Fe(SO4)2,2~20g·L-1NH4F,5~50g·L-1柠檬酸钠(C6H5Na3O7·2H2O),10~50g·L-1NaH2PO2·H2O,利用氨水调整镀液pH值至9~12;
(4)将5.0g·L-1粒度为5~500nm的MnFeO3粉体加入到化学镀液中,超声分散5~30min;
(5)将预处理后的泡沫镍浸入到温度为75~95℃的化学镀液中,在空气或者氮气或者惰性气体或者超声搅拌下,化学镀时间为1h。化学镀完成后,将样品取出,用去离子水超声清洗干净并干燥,即获得负载型Ni-Fe-P-MnFeO3电催化剂。
实施例6
(1)将孔径为0.01~0.1mm、厚度为0.05~50mm的泡沫镍载体,于室温下在丙酮中超声除油5~30min,并在1~5mol·L-1的HCl中超声5~30min去除表面氧化层;
(2)将预处理后的泡沫镍载体用去离子水清洗至无HCl残留,后以无水乙醇进行脱水处理,真空干燥;
(3)化学镀液组成为2~15g·L-1NiSO4·6H2O,5~25g·L-1(NH4)2Fe(SO4)2,2~20g·L-1NH4F,5~50g·L-1柠檬酸钠(C6H5Na3O7·2H2O),10~50g·L-1NaH2PO2·H2O,利用氨水调整镀液pH值至9~12;
(4)将8.0g·L-1粒度为5~500nm的MnFeO3粉体加入到化学镀液中,超声分散5~30min;
(5)将预处理后的泡沫镍浸入到温度为75~95℃的化学镀液中,在空气或者氮气或者惰性气体或者超声搅拌下,化学镀时间为2h。化学镀完成后,将样品取出,用去离子水超声清洗干净并干燥,即获得负载型Ni-Fe-P-MnFeO3电催化剂。
实施例7
(1)将孔径为0.01~0.1mm、厚度为0.05~50mm的泡沫镍载体,于室温下在丙酮中超声除油5~30min,并在1~5mol·L-1的HCl中超声5~30min去除表面氧化层;
(2)将预处理后的泡沫镍载体用去离子水清洗至无HCl残留,后以无水乙醇进行脱水处理,真空干燥;
(3)化学镀液组成为2~15g·L-1NiSO4·6H2O,5~25g·L-1(NH4)2Fe(SO4)2,2~20g·L-1NH4F,5~50g·L-1柠檬酸钠(C6H5Na3O7·2H2O),10~50g·L-1NaH2PO2·H2O,利用氨水调整镀液pH值至9~12;
(4)将10g·L-1粒度为5~500nm的MnFeO3粉体加入到化学镀液中,超声分散5~30min;
(5)将预处理后的泡沫镍浸入到温度为75~95℃的化学镀液中,在空气或者氮气或者惰性气体或者超声搅拌下,化学镀时间为2h。化学镀完成后,将样品取出,用去离子水超声清洗干净并干燥,即获得负载型Ni-Fe-P-MnFeO3电催化剂。
实施例8
(1)将孔径为0.01~0.1mm、厚度为0.05~50mm的泡沫镍载体,于室温下在丙酮中超声除油5~30min,并在1~5mol·L-1的HCl中超声5~30min去除表面氧化层;
(2)将预处理后的泡沫镍载体用去离子水清洗至无HCl残留,后以无水乙醇进行脱水处理,真空干燥;
(3)化学镀液组成为2~15g·L-1NiSO4·6H2O,5~25g·L-1(NH4)2Fe(SO4)2,2~20g·L-1NH4F,5~50g·L-1柠檬酸钠(C6H5Na3O7·2H2O),10~50g·L-1NaH2PO2·H2O,利用氨水调整镀液pH值至9~12;
(4)将15g·L-1粒度为5~500nm的MnFeO3粉体加入到化学镀液中,超声分散5~30min;
(5)将预处理后的泡沫镍浸入到温度为75~95℃的化学镀液中,在空气或者氮气或者惰性气体或者超声搅拌下,化学镀时间为2h。化学镀完成后,将样品取出,用去离子水超声清洗干净并干燥,即获得负载型Ni-Fe-P-MnFeO3电催化剂。
显然,本发明上述实施例仅仅是为了清楚地说明本发明所做的举例,并非是对本发明作其它形式的限制,任何熟悉本专业的技术人员可能利用上述揭示的技术内容加以变更或改型为等同变化的等效实施例。但是凡是未脱离本发明技术方案内容,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与改型,仍属于本发明技术方案的保护范围。
Claims (5)
1.一种化学镀制备负载型Ni-Fe-P-MnFeO3电催化剂的方法,包括下列顺序步骤:
(1)将孔径为0.01~0.1mm、厚度为0.05~50mm的泡沫镍载体,于室温下在丙酮中超声除油5~30min,并在1~5mol·L-1的HCl中超声5~30min去除表面氧化层;
(2)将预处理后的泡沫镍载体用去离子水清洗至无HCl残留,后以无水乙醇进行脱水处理,真空干燥;
(3)化学镀液组成为2~15g·L-1NiSO4·6H2O,5~25g·L-1(NH4)2Fe(SO4)2,2~20g·L- 1NH4F,5~50g·L-1柠檬酸钠(C6H5Na3O7·2H2O),10~50g·L-1NaH2PO2·H2O,利用氨水调整镀液pH值至9~12;
(4)将0.2~15g·L-1粒度为5~500nm的MnFeO3粉体加入到化学镀液中,超声分散5~30min;
(5)将预处理后的泡沫镍浸入到温度为75~95℃的化学镀液中,在空气或者氮气或者惰性气体或者超声搅拌下,化学镀时间为0.1~5h。化学镀完成后,将样品取出,用去离子水超声清洗干净并干燥,即获得负载型Ni-Fe-P-MnFeO3电催化剂。
2.按照权利要求1所述一种化学镀制备负载型Ni-Fe-P-MnFeO3电催化剂的方法,其特征在于:将孔径为0.01~0.1mm、厚度为0.05~50mm的泡沫镍载体,于室温进行超声除油和去除表面氧化层的处理。预处理后的泡沫镍载体用去离子水清洗至无HCl残留,后以无水乙醇进行脱水处理,真空干燥。
3.按照权利要求1所述一种化学镀制备负载型Ni-Fe-P-MnFeO3电催化剂的方法,其特征在于:化学镀液组成为2~15g·L-1NiSO4·6H2O,5~25g·L-1(NH4)2Fe(SO4)2,2~20g·L- 1NH4F,5~50g·L-1柠檬酸钠(C6H5Na3O7·2H2O),10~50g·L-1NaH2PO2·H2O,利用氨水调整镀液pH值至9~12。
4.按照权利要求1所述一种化学镀制备负载型Ni-Fe-P-MnFeO3电催化剂的方法,其特征在于:将0.2~15g·L-1粒度为5~500nm的MnFeO3粉体加入到化学镀液中,超声分散5~30min。
5.按照权利要求1所述一种化学镀制备负载型Ni-Fe-P-MnFeO3电催化剂的方法,其特征在于:将预处理后的泡沫镍浸入到温度为75~95℃的化学镀液中,在空气或者氮气或者惰性气体或者超声搅拌下,化学镀时间为0.1~5h。化学镀完成后,将样品取出,用去离子水超声清洗干净并干燥,制得负载型Ni-Fe-P-MnFeO3电催化剂。
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