Supported MoTe2: proving the viability of a 2D material to be employed in the PEM flow cell for the hydrogen production

支持的 MoTe2：证明在 PEM 流动池中用于制氢的 2D 材料的可行性

• 批准号: EP/W03333X/1
• 负责人: Alexey Ganin
• 金额: $ 31.44万
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FW03333X%2F1
• 关键词: Supported; MoTe2; proving; viability; 2D

Climate change and energy insecurity are two great challenges facing humankind. Suppose we can mitigate it by benefiting from the greater powers of nature which are in abundance such as wind and sun. We can make it work but adapting renewable electricity will bring intermittency challenge. What do we do when the sun does not shine, and the wind does not blow? We can solve it by generating green hydrogen by water electrolysis to manage the peaks and troughs in electricity production. We can make it work by stock-piling hydrogen reserves and re-utilising them when needed for heavy transport, domestic or industrial heating and chemical feedstock. Substantial progress in this direction would prevent the global warming and divert us from the reliance on fossil fuels.Electrolysers are devices for water splitting and they are probably the most advanced solution for creating green hydrogen when coupled with renewable energy sources. Although there has been a significant progress in the design of industrial electrolysers; effective compact systems ready for dynamic response and capable of being deployed in tandem with renewable energy sources such as solar are still limited. The state-of-the-art technologies are still facing serious drawbacks by relying on expensive noble metal catalysts but what if we created few nanometers thick layers with abundance of active sites to catalyse the hydrogen evolution reaction at the surface? We can do it by using 2D materials that consist of earth-abundant elements and intrinsically prone to forming atomically-flat thin layers.Delivered by a team of chemists and engineers the project will explore efficient and practical ways towards hydrogen production on MoTe2 which is a 2D material. The unique feature of MoTe2 is the abundance of catalytic sites at the surface. When supported on a high surface area substrate and laminated to proton exchange membrane it will act as cathode in the membrane electrode assembly within a flow cell that will generate hydrogen by water splitting. As such, the proposed research aims to create the first prototype of an electrolyser that works based on a 2D material. Success in this work would demonstrate an innovative solution by accessing MoTe2 on high surface area substrates to produce a highly stable and robust form of 2D catalyst for application in corrosive environments. This will allow further exploration of its use in delivering green hydrogen at scale.

气候变化和能源不安全是人类面临的两大挑战。假设我们可以通过受益于更大的自然力量来减轻它，这些力量是丰富的，比如风和太阳。我们可以让它工作，但适应可再生电力将带来不确定性的挑战。当太阳不发光，风不吹的时候，我们该怎么办？我们可以通过电解水产生绿色氢气来管理电力生产的高峰和低谷来解决这个问题。我们可以通过储存氢气储备并在重型运输，家庭或工业供暖和化学原料需要时重新利用它们来使其发挥作用。这方面的重大进展将防止全球变暖，并使我们摆脱对化石燃料的依赖。电解槽是水分解的设备，当与可再生能源结合时，它们可能是制造绿色氢的最先进的解决方案。虽然在工业电解槽的设计方面取得了重大进展，但准备好动态响应并能够与可再生能源（如太阳能）协同部署的有效紧凑系统仍然有限。由于依赖昂贵的贵金属催化剂，最先进的技术仍然面临严重的缺点，但是如果我们创造几个纳米厚的层，具有丰富的活性位点来催化表面的析氢反应呢？我们可以通过使用由地球上丰富的元素组成的2D材料来实现这一目标，并且该材料本身易于形成原子级平坦的薄层。该项目由化学家和工程师团队交付，将探索在MoTe 2（一种2D材料）上生产氢气的有效实用方法。MoTe2的独特之处在于其表面具有丰富的催化位点。当支撑在高表面积基底上并层压到质子交换膜上时，它将在流动电池内的膜电极组件中充当阴极，该流动电池将通过水裂解产生氢气。因此，拟议的研究旨在创建基于2D材料工作的电解槽的第一个原型。这项工作的成功将展示一种创新的解决方案，通过在高表面积基底上获得MoTe2，以产生高度稳定和坚固的2D催化剂形式，用于腐蚀性环境。这将允许进一步探索其在大规模输送绿色氢方面的用途。