I-Corps: Two-step water splitting method using an electrochemical Zinc/Zinc Oxide cycle to produce hydrogen

I-Corps：使用电化学锌/氧化锌循环生产氢气的两步水分解方法

• 批准号: 2405325
• 负责人: Eric Detsi
• 金额: $ 5万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-02-01 至 2025-01-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2405325&HistoricalAwards=false
• 关键词: Corps; Two; step; water; splitting

The broader impact/commercial potential of this I-Corps project is the development of zero-emissions alternatives to fuel planes, trains, trucks, buses, ships, and off-road and cargo handling equipment. Currently, clean fuels, such as hydrogen or hydrogen-derived fuels, lack existing distribution and storage infrastructure creating major hurdles to adoption. The proposed technology uses on-board generation of hydrogen to provide a viable alternative to existing battery electric technology that cannot serve certain segments of the heavy-duty vehicle fleet due to weight or operating conditions. The goal is to provide zero emissions fuel independence for places that are currently reliant on expensive diesel and gasoline deliveries, and may be underserved by newer, cleaner fuel supply chains.This I-Corps project is based on the development of a two-step water electrolysis approach to produce hydrogen on-board a vehicle. The proposed technology is designed to provide a safer alternative to battery electric technology and solve one of the pressing challenges of using hydrogen as a transportation fuel, which is moving and storing hydrogen. In addition, the system has a total gravimetric energy density, including the fuel cell, two- to three-times that of commercially available lithium-based battery technologies. The proposed technology uses activated zinc (Zn) in the first step of the process that produces hydrogen gas and zinc oxide when in contact with water and does not require electricity. In step two, electricity is used to electrochemically convert the zinc oxide solid by-product back to activated zinc. Thisclosed-loop two-step water splitting process is referred to as an electrochemical zinc/zinc oxide cycle. The same activated zinc may be used to produce H2 on-site multiple times using many zinc/zinc oxide cycles, which makes it more cost-effective than current solutions. The activated zinc may be used to produce clean H2 off-grid, off-peak, or on-board a vehicle.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

I-Corps项目更广泛的影响/商业潜力是开发零排放燃料替代飞机、火车、卡车、公共汽车、船舶以及越野和货物装卸设备。目前，清洁燃料，如氢或氢衍生燃料，缺乏现有的分销和储存基础设施，这对采用造成了重大障碍。拟议中的技术使用车载氢气发电，为现有的电池电力技术提供了一种可行的替代方案。由于重量或操作条件的限制，现有的电池电力技术无法为重型车队的某些部分提供服务。目标是为目前依赖昂贵的柴油和汽油运输的地区提供零排放燃料独立，这些地区可能无法获得更新，更清洁的燃料供应链。I-Corps项目的基础是开发一种两步水电解方法，以在车辆上生产氢气。提出的技术旨在提供一种更安全的替代电池电力技术，并解决使用氢作为运输燃料的紧迫挑战之一，即移动和储存氢。此外，该系统的总重量能量密度（包括燃料电池）是商用锂基电池技术的两到三倍。该技术在工艺的第一步使用活性锌（Zn），当与水接触时产生氢气和氧化锌，并且不需要电力。在第二步中，电被用来电化学地将氧化锌固体副产品转化为活性锌。这种闭环两步水分解过程被称为电化学锌/氧化锌循环。相同的活化锌可以通过多次锌/氧化锌循环在现场多次生产氢气，这比目前的解决方案更具成本效益。活性锌可用于离网、非峰或车载生产清洁的H2。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。