碱性膜燃料电池非贵金属催化剂性能评价

开发价格低廉、高活性、强稳定性的非贵金属催化剂对碱性膜燃料电池的发展是至关重要的。在ZIF-8中加入Co和Mn盐，得到CoMn-ZIF-Ac-2。通过在不同温度下对CoMn-ZIF-Ac-2进行碳化，得到了氮掺杂微孔碳(CoMn-N-C-Ac-2-Ts, T = 700、800、900和1000℃)中嵌入Co和Mn。研究了不同热解温度、Co和Mn的摩尔比对ORR催化活性的影响。对最佳催化剂CoMn-N-C-Ac-2-800进行了半电池活性和稳定性测试，以及全电池极化曲线测试。数据的采集时间是2021年6月至2022年10月，采用的测试仪器是CHI 760E电化学工作站配合美国PINE公司旋转装置，主要记录了催化剂循环伏安、氧还原极化曲线、恒电位衰减，半电池加速衰减等测试值，另外，还通过850E测试了催化剂的全电池极化曲线和阻抗曲线，另外数据量556MB。Developing low-cost, high-activity, and highly stable non-noble metal catalysts is critical for the advancement of alkaline membrane fuel cells. Co and Mn salts were added to ZIF-8 to synthesize CoMn-ZIF-Ac-2. Carbonization of CoMn-ZIF-Ac-2 at different temperatures yielded Co and Mn embedded in nitrogen-doped microporous carbons (denoted as CoMn-N-C-Ac-2-Ts, where T = 700, 800, 900, and 1000 ℃). The effects of pyrolysis temperature and the molar ratio of Co to Mn on the ORR catalytic activity were investigated. The optimal catalyst, CoMn-N-C-Ac-2-800, was subjected to half-cell activity and stability tests, as well as full-cell polarization curve tests. The data were collected from June 2021 to October 2022. The testing instruments included the CHI 760E electrochemical workstation coupled with the rotating setup from Pine Instrumentation (USA), and the recorded test data included cyclic voltammetry curves, oxygen reduction polarization curves, potentiostatic decay, and half-cell accelerated decay tests of the catalysts. Additionally, the full-cell polarization curves and impedance spectra of the catalysts were tested using the 850E system. The total data volume is 556 MB.

搜集汇总

背景与挑战

背景概述

该数据集针对碱性膜燃料电池，旨在开发低成本、高活性和稳定的非贵金属催化剂，通过研究Co和Mn掺杂的氮掺杂微孔碳在不同热解温度下的氧还原催化活性。数据包括半电池与全电池的性能测试结果，如极化曲线和稳定性数据，采集于2021年至2022年，总数据量为556MB。