Manufacturing of Silicon Ceramic Membranes via One-Pot Deposition and Pyrolysis of Preceramic Polymers for Water Treatment and Hydrogen Separation.
通过陶瓷前体聚合物的一锅沉积和热解制造硅陶瓷膜,用于水处理和氢气分离。
基本信息
- 批准号:2012196
- 负责人:
- 金额:$ 48万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-07-01 至 2024-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This grant supports research toward the development of membranes for energy applications. Increasing access to energy sources is very important for advancing the U.S. economy. As the demand for energy continues to increase, hydrogen has been increasingly considered as a viable alternative energy source for engines, turbines and fuel cells. To make this a realistic option, hydrogen must be efficiently separated from other gases and, therefore, it is crucial to manufacture robust inorganic ceramic membranes that can operate at high temperatures and pressures. Current methods to fabricate these membranes are costly, time-consuming and produce toxic waste. This award supports fundamental research that leads to the development of a solvent-free, one-pot or single step manufacturing process to fabricate inorganic membranes for hydrogen separation. This new manufacturing process leads to a more cost-effective and environmentally-friendly way to provide clean energy sources, which leads to national prosperity and security. This award supports the education of future scientists and engineers through outreach to K-12 students and mentorship of undergraduate researchers. This manufacturing technology can also lead to the development of membranes for other applications such as water purification. Hands-on modules demonstrating the use of membranes for water purification are developed to educate middle and high school students on the lack of access to clean water in many parts of the world.Traditional processes for making inorganic membranes require multiple steps and organic solvents, leading to higher cost and toxic waste. This research gains scientific insights that allow for the development of solventless, one-pot manufacturing of inorganic membranes. Pre-ceramic polymers are deposited in a reactor using a solvent-free process that requires very low energy and mild reactor conditions and employs a broad range of monomers to generate a variety of polymer films. Deposition of a dense, thin polymer layer on top of a macroporous silicon carbide support is ideal for creating high-quality nanoporous ceramic membranes for efficient hydrogen separation. A low vapor pressure liquid barrier layer, which itself serves as a ceramic precursor, is placed on the support before polymer deposition in order to prevent infiltration of the monomer into the support and thus avoid negatively impacting the permeation characteristics of the resulting membrane. Pyrolysis of these films is conducted in the same reactor, hence one-pot, to produce reliable ceramic membranes with lower risk of contamination. The research generates understanding of mechanistic insights on bond cleavage and formation during pyrolysis. Experimental efforts are coupled to multi-scale modeling studies to understand the fundamental reaction and transport processes.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.
该补助金支持能源应用膜的开发研究。增加获得能源的机会对促进美国经济非常重要。随着对能源需求的持续增加,氢越来越被认为是发动机、涡轮机和燃料电池的可行替代能源。为了使这成为一个现实的选择,氢气必须有效地与其他气体分离,因此,制造可以在高温和高压下工作的坚固的无机陶瓷膜至关重要。目前制造这些膜的方法成本高,耗时长,并产生有毒废物。该奖项支持基础研究,导致开发无溶剂,一锅或单步制造工艺,以制造用于氢气分离的无机膜。这种新的制造工艺带来了一种更具成本效益和环境友好的方式来提供清洁能源,从而实现国家繁荣和安全。该奖项支持未来的科学家和工程师的教育,通过推广到K-12学生和本科研究人员的导师。这种制造技术还可以促进用于水净化等其他应用的膜的开发。开发了演示使用膜进行水净化的实践模块,以教育初中和高中学生了解世界许多地区缺乏清洁水的情况。传统的无机膜制造工艺需要多个步骤和有机溶剂,导致成本较高和有毒废物。这项研究获得了科学的见解,允许开发无溶剂,一锅法制造无机膜。使用无溶剂工艺在反应器中沉积陶瓷前体聚合物,该工艺需要非常低的能量和温和的反应器条件,并采用宽范围的单体来产生各种聚合物膜。在大孔碳化硅载体上沉积致密的薄聚合物层是制造高质量纳米多孔陶瓷膜的理想方法,用于有效的氢气分离。在聚合物沉积之前,将本身用作陶瓷前体的低蒸气压液体阻挡层置于载体上,以防止单体渗透到载体中,从而避免对所得膜的渗透特性产生负面影响。这些膜的热解在同一反应器中进行,因此是一锅法,以生产具有较低污染风险的可靠陶瓷膜。该研究产生了对热解过程中键断裂和形成的机理见解的理解。该奖项反映了NSF的法定使命,并被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。
项目成果
期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Vapor Deposition of Silicon-Containing Microstructured Polymer Films onto Silicone Oil Substrates
含硅微结构聚合物薄膜在硅油基材上的气相沉积
- DOI:10.1021/acs.langmuir.1c02286
- 发表时间:2021
- 期刊:
- 影响因子:3.9
- 作者:Welchert, Nicholas A.;Nguyen, Bryan;Tsotsis, Theodore T.;Gupta, Malancha
- 通讯作者:Gupta, Malancha
Fabrication of SiC-Type Films Using Low-Energy Plasma-Enhanced Chemical Vapor Deposition (PECVD) and Subsequent Pyrolysis
- DOI:10.1021/acs.iecr.2c04656
- 发表时间:2023-06
- 期刊:
- 影响因子:0
- 作者:Bryant Nguyen;Farnaz Tabarkhoon;Nicholas A. Welchert;Sheng Hu;Malancha Gupta;T. Tsotsis
- 通讯作者:Bryant Nguyen;Farnaz Tabarkhoon;Nicholas A. Welchert;Sheng Hu;Malancha Gupta;T. Tsotsis
Time-resolved operando analysis of the pyrolysis of a PECVD-deposited siloxane polymer using a combined DRIFTS–MS system
使用组合 DRIFTS–MS 系统对 PECVD 沉积的硅氧烷聚合物的热解进行时间分辨操作分析
- DOI:10.1039/d3me00032j
- 发表时间:2023
- 期刊:
- 影响因子:3.6
- 作者:Nguyen, Bryan;Tabarkhoon, Farnaz;Zhao, Linghao;Mishra, Ankit;Gupta, Malancha;Vashishta, Priya;Tsotsis, Theodore
- 通讯作者:Tsotsis, Theodore
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Malancha Gupta其他文献
Chemical Vapor Deposition of Polymer Films
聚合物薄膜的化学气相沉积
- DOI:
10.1002/0471440264.pst467 - 发表时间:
2011 - 期刊:
- 影响因子:4
- 作者:
S. Seidel;C. T. Riche;Malancha Gupta - 通讯作者:
Malancha Gupta
Vapor-Deposited Porous Polymers for the Fabrication of Giant Lipid Vesicles
- DOI:
10.1016/j.bpj.2017.11.2963 - 发表时间:
2018-02-02 - 期刊:
- 影响因子:
- 作者:
Nareh Movsesian;Noah Malmstadt;Malancha Gupta - 通讯作者:
Malancha Gupta
Modular microfluidics for double emulsion formation.
用于双乳液形成的模块化微流体。
- DOI:
- 发表时间:
2018 - 期刊:
- 影响因子:0
- 作者:
Bryant Thompson;N. Movsesian;Christine T. Cheng;Prathamesh Karandikar;Malancha Gupta;N. Malmstadt - 通讯作者:
N. Malmstadt
Solventless grafting of functional polymer coatings onto Parylene C
功能性聚合物涂层无溶剂接枝到聚对二甲苯 C 上
- DOI:
- 发表时间:
2016 - 期刊:
- 影响因子:0
- 作者:
M. D. Luna;Benny Chen;Laura C. Bradley;R. Bhandia;Malancha Gupta - 通讯作者:
Malancha Gupta
Directed deposition of functional polymers onto porous substrates using metal salt inhibitors.
使用金属盐抑制剂将功能聚合物定向沉积到多孔基材上。
- DOI:
- 发表时间:
2011 - 期刊:
- 影响因子:3.9
- 作者:
P. Kwong;C. Flowers;Malancha Gupta - 通讯作者:
Malancha Gupta
Malancha Gupta的其他文献
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{{ truncateString('Malancha Gupta', 18)}}的其他基金
CAREER: Integrating Research and Education via Low-Temperature Solventless Formation of Hierarchical Porous-on-Porous Materials
职业:通过低温无溶剂形成多级孔叠孔材料将研究和教育结合起来
- 批准号:
1252651 - 财政年份:2013
- 资助金额:
$ 48万 - 项目类别:
Standard Grant
Patterning Vapor Deposited Polymers onto Porous Microfluidic Devices using Transition Metal Salts
使用过渡金属盐将气相沉积聚合物图案化到多孔微流体装置上
- 批准号:
1069328 - 财政年份:2011
- 资助金额:
$ 48万 - 项目类别:
Standard Grant
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