新型燃料电池催化剂的制备及性能测试研究
发布时间:2018-12-17 16:01
【摘要】:以预处理的活性炭为载体,采用浸渍还原法制备出Pd基阳极催化剂,主要考察了活性炭预处理、金属前驱体加入顺序对催化剂的影响。结果表明:通过利用HNO_3溶液对活性炭进行处理,可以提高催化剂的负载量,在电化学测试中C2H5OH氧化峰值是未处理活性炭为载体催化剂的2.04倍。此方案可成功合成出粒径达到3.4nm的催化剂。另外利用分布还原法制备的催化剂,可以实现活性炭上催化剂的高负载量和更小的粒径尺寸。
[Abstract]:The Pd based anode catalyst was prepared by impregnation reduction with the pre-treated activated carbon as the carrier. The influence of the pretreatment of activated carbon and the addition order of metal precursor on the catalyst was investigated. The results showed that the amount of catalyst supported on activated carbon could be increased by using HNO_3 solution. The peak value of C2H5OH oxidation was 2.04 times of that of untreated activated carbon. The catalyst with particle size up to 3.4nm can be successfully synthesized by this scheme. In addition, the catalyst prepared by the distributed reduction method can achieve the high loading amount and smaller particle size of the catalyst on the activated carbon.
【作者单位】: 天津工业大学分离膜与膜过程国家重点实验室;天津工业大学环境与化学工程学院;
【基金】:天津市自然科学基金重点项目(12JCZDJC28400) 天津市科技计划项目(15PTSYJC00230) 国家自然科学基金(21476172和21206124)
【分类号】:TM911.4;TQ426
本文编号:2384423
[Abstract]:The Pd based anode catalyst was prepared by impregnation reduction with the pre-treated activated carbon as the carrier. The influence of the pretreatment of activated carbon and the addition order of metal precursor on the catalyst was investigated. The results showed that the amount of catalyst supported on activated carbon could be increased by using HNO_3 solution. The peak value of C2H5OH oxidation was 2.04 times of that of untreated activated carbon. The catalyst with particle size up to 3.4nm can be successfully synthesized by this scheme. In addition, the catalyst prepared by the distributed reduction method can achieve the high loading amount and smaller particle size of the catalyst on the activated carbon.
【作者单位】: 天津工业大学分离膜与膜过程国家重点实验室;天津工业大学环境与化学工程学院;
【基金】:天津市自然科学基金重点项目(12JCZDJC28400) 天津市科技计划项目(15PTSYJC00230) 国家自然科学基金(21476172和21206124)
【分类号】:TM911.4;TQ426
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