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Science China Chemistry 2025年

作者： Yi Guo Junsheng Wei Jingyi Li Yulong Ying Weiqiang Zhou Yu Liu Qing Yu Wei Zhang huaneng su Yanli Zhao Institute for Energy Research School of Chemistry and Chemical EngineeringJiangsu University School of Materials Science and Engineering Zhejiang Sci-Tech University School of Chemistry Chemical Engineering and BiotechnologyNanyang Technological University

The proton conductive electrolytes operating under high temperature （100–200°C） are highly desired for high temperature proton exchange membrane fuel cells （HTPEMFC）,which possess high CO tolerance,easy thermal-water management,and high ***,conventional proton exchange membranes face the challenge of proton carrier *** conquer such issue,in this work,the nanometer-sized proton transport channels are constructed in ZIF-8 membrane,in which deep eutectic solvents （DES） act as proton carriers to build continuous hydrogen-bonding *** microporous structure of ZIF-8 would inhibit DES leaking by size *** excellent proton conductivity is achieved in the DES@ZIF-8 membrane,which is 1.21×10-2S cm-1at 180°***,it is discovered that weak electron donors could optimize the proton transport pathway by tuning the structure and HOMO of hydrogen-bonding networks,which would lower the activation energy for proton hopping and enhance rapid proton *** a proof of concept,the DES@ZIF-8 membrane is fabricated directly into a H2/*** work provides not only a kind of efficient proton conducive electrolytes,but also theoretical support for improving proton conductivity by optimizing hydrogen-bonding networks.

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Enhanced electro-oxidation of formic acid by a PdPt bimetallic catalyst on a CeO_2-modified carbon support

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Science China Chemistry 2012年第3期55卷 391-397页

作者： YANG LiJun su huaneng SHU Ting LIAO ShiJun School of Chemistry and Chemical Engineering South China University of TechnologyGuangzhou 510641China

PdPt bimetallic catalysts that employ CeO2-modified carbon black as a support have been prepared using an organic colloidal method. PdPt/CeO2-C shows excellent performance toward the anodic oxidation of formic acid. The effects of varying both Pd to Pt ratio and CeO2 content have been investigated. The optimal Pd to Pt atomic ratio is 15, indicating that addition of small amounts of Pt can significantly enhance the activity of the catalyst. When the CeO2 content in the catalyst reaches as high as ~15 wt.%, the catalyst shows the maximum activity. Adding CeO2 not only enhances the catalytic activity of the material, but may also change the mechanism of its catalysis of the anodic oxidation of formic acid. PdlsPh/15CeO2-C exhibited 60% higher activity than Pd/C, and had a negative shift in onset potential of more than 0.1 V. Based on characterization by X-ray diffraction, X-ray photoelectron spectroscopy, thermogravimetric analysis and transmission electron microscopy, the interactions between the components are revealed and discussed in detail.

关键词： platinum palladium cerium oxide direct formic acid fuel cell

Tunable nitrogen crafted 2D-graphene nano-hybrid from industrial expansive and ecological approach as robust cathode microporous layer to improve performance of a direct methanol fuel cell

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Science China(Technological Sciences) 2023年第9期66卷 2669-2680页

作者： BALAKRISHNAN Prabhuraj GUAN Li LIU HuiYuan LEUNG PuiKi SHAH Akeel XING Lei su huaneng XU Qian Institute for Energy Research Jiangsu UniversityZhenjiang 212013China School of Energy and Power Engineering Chongqing UniversityChongqing 400030China Department of Chemical Process Engineering University of SurreyGuildford GU27XHUK

In this work, the excess water-stagnation issue in the high current region in direct methanol fuel cells(DMFCs) is resolved by using atomic precision modulated nitrogen-crafted graphene(NG) in the cathode microporous layer by utilizing simplistic,industrial-expansive and ecological strategy. Few-layer 2D-graphene(~2–5 nm thickness) is prepared by bath sonication approach from abundant feedstock-graphite and is treated with nitric acid to yield 1.8 wt.% uniformly dispersed nitrogen containing NG. Specifically, 1:4 weight ratio NG:carbon-black(CB) hybrid architecture, displays 0.252 V in 370 mA cm^(-2) with the peak power density of 93.4 mW cm^(-2), improving cell power density by 45.6% compared with standard one at 60℃ and 1 mol/L methanol/oxygen conditions at ultra-low catalyst loadings and displaying exceptional stability. Atomic insights into NG reveal that interplay between bonding configurations, altered hydrophobic/hydrophilic porosity of graphene(10.6% less wettability from contact angle and 13.1% high electrode porosity measurements) contribute to the better mass-transport-porogenic effect(16.3% high oxygen-permeability), mildly affecting the electron pathway(6.5% reduced in-plane electrical conductivity),overall significantly improving cell performance. Altogether, this work delivers multiple advantages, i.e., the usage of material from facile, sustainable and cost-effective routes, while improving DMFC performance with potential industrial promise.

关键词： direct methanol fuel cells(DMFCs) membrane electrode assembly(MEA) 2D materials liquid phase exfoliation nitrogen doping

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Hollow cobalt oxide nanoparticles embedded in nitrogen-doped carbon nanosheets as an efficient bifunctional catalyst for Zn–air battery

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Journal of Energy Chemistry 2019年第6期28卷 59-66页

作者： Yuhui Tian Li Xu Jian Bao Junchao Qian huaneng su Huaming Li Haidong Gu Cheng Yan Henan Li School of Chemistry and Chemical Engineering Institute for Energy ResearchJiangsu UniversityZhenjiang 212013JiangsuChina Jiangsu Key Laboratory for Environment Functional Materials School of Environmental Science and EngineeringSuzhou University of Science and TechnologySuzhou 215009JiangsuChina School of Chemistry Physics and Mechanical EngineeringQueensland University of TechnologyBrisbaneQLD 4001Australia

Rational design of low-cost, highly electrocatalytic activity, and stable bifunctional electrocatalysts for oxygen reduction reaction(ORR) and oxygen evolution reaction(OER) has been a great significant for metal–air batteries. Herein, an efficient bifunctional electrocatalyst based on hollow cobalt oxide nanoparticles embedded in nitrogen-doped carbon nanosheets(Co/N-Pg) is fabricated for Zn–air batteries. A lowcost biomass peach gum, consisting of carbon, oxygen, and hydrogen without other heteroatoms, was used as carbon source to form carbon matrix hosting hollow cobalt oxide nanoparticles. Meanwhile, the melamine was applied as nitrogen source and template precursor, which can convert to carbon-based template graphitic carbon nitride by polycondensation process. Owing to the unique structure and synergistic effect between hollow cobalt oxide nanoparticles and Co-N-C species, the proposal Co/N-Pg catalyst displays not only prominent bifunctional electrocatalytic activities for ORR and OER, but also excellent durability. Remarkably, the assembled Zn–air battery with Co/N-Pg air electrode exhibited a low discharge-charge voltage gap(0.81 V at 50 mA cm^-2) and high peak power density(119 mW cm^-2) with long-term cycling stability. This work presents an effective approach for engineering transition metal oxides and nitrogen modified carbon nanosheets to boost the performance of bifunctional electrocatalysts for Zn–air battery.

关键词： Zn-air batteries Oxygen reduction reaction Oxygen evolution reaction Nitrogen-doped carbon nanosheets Cobalt oxides

Performance Investigation of Membrane Electrode Assemblies for High Temperature Proton Exchange Membrane Fuel Cell

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Journal of Power and Energy Engineering 2013年第5期1卷 95-100页

作者： huaneng su Sivakumar Pasupathi Bernard Bladergroen Vladimir Linkov Bruno G. Pollet HySA Systems Competence Centre South African Institute for Advanced Materials Chemistry University of the Western Cape Private Bag X17 Bellville 7535 South Africa

Different types of ABPBI (poly(2,5-benzimidazole)) membranes and polymer binders were evaluated to investigate the performance of MEAs for high temperature proton exchange membrane fuel cell (HT-PEMFC). The properties of the prepared MEAs were evaluated and analyzed by polarization curve, electrochemistry impedance spectroscopy (EIS), cyclic voltammetry (CV) and durability test. The results showed that MEA with modified ABPBI membrane (AM) has satisfactory performance and durability for fuel cell application. Compare to conventional PBI or Nafion binders, polytetrafluoroethylene (PTFE) and polyvinylidene difluoride (PVDF) are more attractive as binders in the catalyst layer (CL) of gas diffusion electrode (GDE) for HT-PEMFC.

关键词： High Temperature Proton Exchange Membrane Fuel Cell ABPBI (Poly(2 5-Benzimidazole)) Polymer Binders Gas Diffusion Electrode Membrane Electrode Assembly

微型平面6-cell组合再生式燃料电池电源的制作与性能

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华南师范大学学报（自然科学版） 2009年第A01期41卷 22-23页

作者：苏华能廖世军华南理工大学化学与化工学院广东广州510640

首次设计并制作了一种微型平面6-cell组合的质子交换膜再生式燃料电池(PEM-URFC)电源系统.该微型电源由一片含多个膜电极单元的质子交换膜做为电解和发电的双功能膜电极组件,一个装有储氢材料和电解用水的底盒做为氢气储放和给水装置,... 详细信息

首次设计并制作了一种微型平面6-cell组合的质子交换膜再生式燃料电池(PEM-URFC)电源系统.该微型电源由一片含多个膜电极单元的质子交换膜做为电解和发电的双功能膜电极组件,一个装有储氢材料和电解用水的底盒做为氢气储放和给水装置,通过带有气流孔的底板、碳极板及顶板紧密压合而成.在电解模式时,该电源系统将水分解产生氢并通过储氢合金存储于底盒中;而在燃料电池模式时,氢再被释放出来与空气中的氧进行放电反应而产生电流.常温常压下,该微型电源的开路电压可达4.9 V,在3.0 V的工作电压下,能维持19 mA/cm2放电约40分钟左右.该电源系统具有良好的充放电循环能力,在10次充放电循环后,电池性能依然能保持稳定.

关键词：微型电源再生式燃料电池充放电循环

基于电极修饰质子交换膜燃料电池自增湿研究进展

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化工进展 2020年第6期39卷 2363-2369页

作者：解政张玮琦马强徐谦苏华能江苏大学能源研究院江苏镇江212013

自增湿对于质子交换膜燃料电池的实际应用具有重要意义。本文从电极组分和结构修饰这一角度出发,介绍了近年来质子交换膜燃料电池自增湿研究的一些重要进展和发展趋势。首先介绍了基于催化层修饰实现质子交换膜燃料电池自增湿的发展状况... 详细信息

自增湿对于质子交换膜燃料电池的实际应用具有重要意义。本文从电极组分和结构修饰这一角度出发,介绍了近年来质子交换膜燃料电池自增湿研究的一些重要进展和发展趋势。首先介绍了基于催化层修饰实现质子交换膜燃料电池自增湿的发展状况,指出吸湿性催化剂开发是实现高效自增湿催化层的关键;其次介绍了基于气体扩散层修饰和电极结构改进实现质子交换膜燃料电池自增湿的研究进展,分析了两种方式各自的优缺点,讨论了其后续的发展方向;最后针对现有自增湿工艺存在的问题,提出了未来的研究方向和重点,对这类自增湿研究的发展趋势及应用前景进行了展望,指出吸湿性催化剂研发以及多种工艺协同互补将是今后自增湿质子交换膜燃料电池发展的重要方向。

关键词：燃料电池自增湿催化层气体扩散电极电极修饰

锑离子添加剂对低共熔溶剂(DES)电解液液流电池的性能改善研究

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化工学报 2021年第6期72卷 3368-3379页

作者：纪燕男孙培茁马强张玮琦苏华能徐谦南通理工学院电气与能源工程学院江苏南通226002 江苏大学能源研究院江苏镇江212013

非水系氧化还原液流电池(NARFB)的广泛应用受制于其较低的性能。在电解液中加入一些金属离子添加剂是一种可能的解决方案。实验研究了Sb3+离子对低共熔溶剂(DES)电解液液流电池电化学性能的影响。结果表明,添加Sb3+离子可以强化V(Ⅲ)/V(... 详细信息

非水系氧化还原液流电池(NARFB)的广泛应用受制于其较低的性能。在电解液中加入一些金属离子添加剂是一种可能的解决方案。实验研究了Sb3+离子对低共熔溶剂(DES)电解液液流电池电化学性能的影响。结果表明,添加Sb3+离子可以强化V(Ⅲ)/V(Ⅱ)氧化还原离子对的电化学反应动力学(最高可达22.6%)过程,钒离子在DES中的扩散系数提高了63.3%,并且电荷转移电阻降低了11.9%。场发射扫描电子显微镜表明,Sb^(3+)离子电沉积在石墨毡的表面,对电化学反应起催化作用,从而改善了电化学性能。考虑增强的动力学和降低的活性比表面积之间的平衡,确定了Sb3+的最佳浓度为15 mmol·L^(-1)。此外,当使用含有Sb3+的负极电解液液流电池时,液流电池的功率密度提高了31.2%,从含原始电解质的3.08 mW·cm^(-2)到含15 mmol·L^(-1) Sb^(3+)离子的4.04 mW·cm^(-2)。这些结果为改善NARFB的电池性能提供了一个便捷而有前景的方法。

关键词：低共熔溶剂(DES) 氧化还原液流电池(RFB) 锑离子电池性能

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磷酸掺杂聚苯并咪唑高温膜燃料电池膜电极

化学进展 2019年第2期31卷 455-463页

作者：姚东梅张玮琦徐谦徐丽李华明苏华能江苏大学能源研究院镇江212013

基于磷酸掺杂聚苯并咪唑(PBI)高温膜燃料电池(HT-PEMFC)具有环境耐受性好、水热管理简单等优点,被认为是未来PEMFC发展的方向。作为HT-PEMFC的核心组件,膜电极对其性能、成本和寿命有着决定性影响。由于高温体系中磷酸电解质的存在,HT-P... 详细信息

基于磷酸掺杂聚苯并咪唑(PBI)高温膜燃料电池(HT-PEMFC)具有环境耐受性好、水热管理简单等优点,被认为是未来PEMFC发展的方向。作为HT-PEMFC的核心组件,膜电极对其性能、成本和寿命有着决定性影响。由于高温体系中磷酸电解质的存在,HT-PEMFC膜电极组分和特性与低温膜(如Nafion)燃料电池大不相同,同时还存在着铂用量高、磷酸流失以及高温带来的材料稳定性问题。本文综述了HT-PEMFC膜电极的构建、组分和结构优化方面的研究工作,概述了目前HT-PEMFC膜电极的研究趋势并展望了其未来发展方向,以期对后续先进HT-PEMFC膜电极研究开发提供有益借鉴。

关键词：膜电极聚电解质膜燃料电池聚苯并咪唑磷酸高温

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液流电池技术评价指标的发展及其应用

江苏大学学报（自然科学版） 2019年第4期40卷 404-410页

作者：纪燕男徐谦秦立宇苏华能王贞涛江苏大学能源研究院江苏镇江212013 江苏大学能源与动力工程学院江苏镇江212013

因不同种类的液流电池各有特点,其技术评价指标也各不相同甚至相互对立.迄今为止,对液流电池技术评价指标的有效选取还不清晰、不统一,尚无专门的论述.研究了液流电池技术评价指标的发展过程,阐明了评价指标的选择方法,即系统能量效率... 详细信息

因不同种类的液流电池各有特点,其技术评价指标也各不相同甚至相互对立.迄今为止,对液流电池技术评价指标的有效选取还不清晰、不统一,尚无专门的论述.研究了液流电池技术评价指标的发展过程,阐明了评价指标的选择方法,即系统能量效率是首要的评价指标.在保持高能量效率的前提下,针对不同液流电池的种类和特点,分别将功率密度或能量密度作为重要的指标,并分别对这些指标在液流电池中的应用和对液流电池技术的促进作了介绍.最后,讨论了不适合以系统能量效率作为评价指标的几种情况.

关键词：液流电池技术评价指标系统能量效率功率密度能量密度