Evaluating the Case for Reduced Precious Metal Catalysts in Proton Exchange Membrane Electrolyzers,ACS Energy Letters

当前位置： X-MOL 学术 › ACS Energy Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Evaluating the Case for Reduced Precious Metal Catalysts in Proton Exchange Membrane Electrolyzers
ACS Energy Letters ( IF 19.3 ) Pub Date : 2021-11-23 , DOI: 10.1021/acsenergylett.1c01869
McKenzie A. Hubert ₁ , Laurie A. King _{2,

3} , Thomas F. Jaramillo _{1,

4}

Affiliation

Proton exchange membrane (PEM) water electrolyzers are a key technology in decarbonizing hydrogen production. Though the market for PEM electrolyzer systems is growing, there are concerns that the cost and availability of precious metal catalysts utilized in today’s commercial systems can limit deployment. Herein, we show that while the availability of Ir should not impede deployment in the near term, the inelasticity of the Ir commodity price is cause for immediate concern. We emphasize that diversifying catalyst materials, even with other precious metals, can reduce system costs and mitigate supply chain risk. Furthermore, we analyze the trade-offs between catalyst capital cost and catalyst activity for a range of operating conditions (i.e., capacity factor, electricity price). The framework presented herein is a first step toward establishing performance targets (i.e., activity, stability, material cost) for reduced precious metal and non-precious metal catalysts as a function of PEM electrolyzer operating conditions.

中文翻译：

评估质子交换膜电解槽中还原贵金属催化剂的案例

质子交换膜 (PEM) 水电解槽是脱碳制氢的关键技术。尽管 PEM 电解系统市场正在增长，但人们担心当今商业系统中使用的贵金属催化剂的成本和可用性可能会限制部署。在此，我们表明，虽然 Ir 的可用性不应在短期内阻碍部署，但 Ir 商品价格的无弹性是引起当务之急的原因。我们强调，即使使用其他贵金属，催化剂材料的多样化也可以降低系统成本并降低供应链风险。此外，我们分析了催化剂资本成本和催化剂活性在一系列操作条件下的权衡（即容量系数、电价）。

更新日期：2022-01-14

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11