IrOX Supported onto Niobium-Doped Titanium Dioxide as an Anode Reversal Tolerant Electrocatalyst for Proton Exchange Membrane Fuel Cells
IrOX Supported onto Niobium-Doped Titanium Dioxide as an Anode Reversal Tolerant Electrocatalyst for Proton Exchange Membrane Fuel Cells
复制标题
IrOX 负载在铌掺杂二氧化钛上作为质子交换膜燃料电池的耐阳极反转电催化剂
DOI：
10.1021/acsaem.1c03873
复制
发表时间：
2022-02
影响因子：
6.4
通讯作者：
Zhao Tianshou
中科院分区：
文献类型：
--
作者：
Liao Jianhua;Wang Yameng;Chen Ming;Wang Min;Fan Jiantao;Li Hui;Wang Haijiang;Zeng Lin;Zhao Tianshou
将析氧电催化剂添加到阳极催化剂层被证明是解决质子交换膜燃料电池（PEMFC）电压反转的实用方法。在这项工作中，IrOX纳米粒子均匀沉积在掺杂铌的二氧化钛（IrOX/Nb0.1Ti0.9O2）通过溶胶-凝胶法被用作耐反转阳极（RTA）的质子交换膜燃料电池。该膜电极的耐反转时间为29.1min，是所有膜电极中最好的。另一方面，在电流密度为1.2A·cm-2时，该MEA的反转试验后的电池电压下降仅为61mV，劣化率为11.1%。改进的反转耐受性部分归因于均匀分布的IrOX纳米颗粒，促进析氧反应，并且部分归因于通过应用非碳载体来避免碳氧化反应。这一结果为基于非碳载体的RTA提高PEMFC的阳极反转耐受性奠定了基础。
The addition of an oxygen evolution electrocatalyst to an anode catalyst layer is demonstrated as a practical approach to address the voltage reversal of proton exchange membrane fuel cells (PEMFCs). In this work, IrOX nanoparticles uniformly deposited on niobium-doped TiO2 (IrOX/Nb0.1Ti0.9O2) by a sol−gel method are employed as reversal tolerant anodes (RTAs) for PEMFCs. The membrane electrode assembly (MEA) with this RTA possesses a reversal tolerance time of 29.1 min, which is the best result among all the as-prepared MEAs. Meanwhile, the decrease in the cell voltage of this MEA after reversal testing is only 61 mV at a current density of 1.2 A cm−2 with a degradation rate of 11.1%. The improved reversal tolerance is attributed, in part, to the uniformly distributed IrOX nanoparticles, boosting the oxygen evolution reaction and, in part, to avoid the carbon oxidation reaction by the application of a noncarbon support. This result can lay a fundamental basis for the application of RTA based on a noncarbon support to improve the anode reversal tolerance for PEMFCs.
登录
查看更多内容
影响因子：
9.2
作者：
Changxing Yang;Ming-ruo Hu;Chen Wang;Guangyi Cao
通讯作者：
Changxing Yang;Ming-ruo Hu;Chen Wang;Guangyi Cao
影响因子：
6.4
作者：
T. Ralph;S. Hudson;D. Wilkinson
通讯作者：
T. Ralph;S. Hudson;D. Wilkinson
影响因子：
7.2
作者：
A. Taniguchi;T. Akita;K. Yasuda;Y. Miyazaki
通讯作者：
A. Taniguchi;T. Akita;K. Yasuda;Y. Miyazaki
影响因子：
9.2
作者：
Tita Labi;François B. Van Schalkwyk;S. M. Andersen;P. Morgen;S. Ray;J. Chamier
通讯作者：
Tita Labi;François B. Van Schalkwyk;S. M. Andersen;P. Morgen;S. Ray;J. Chamier
影响因子：
6.6
作者：
Rasten, E;Hagen, G;Tunold, R
通讯作者：
Tunold, R