Oxidation stages of Ni electrodes in solid oxidefuel cell environments
文献信息
Farid El Gabaly, Kevin F. McCarty, Hendrik Bluhm, Anthony H. McDaniel
Nickel is the most commonly used anode for solid-oxide fuel cells (SOFC) due to its fast kinetics and low price. A leading cause of degradation in Ni electrodes is oxidation. Here we use operando ambient-pressure X-ray photoelectron spectroscopy (XPS) to chemically characterize the Ni electrode of a fuel cell anode during oxidation in a H2/H2O atmosphere. We find three different stages of Ni oxidation in the model SOFC. In the first two stages, the Ni exposed to the gas remains metallic but the Ni at the interface with the zirconia electrolyte is oxidized. In the third oxidation stage, we find that Ni transforms to NiOOH, a phase not previously considered in the SOFC literature. We show that the transformation between Ni and NiOOH is reversible and is initiated at the Ni/gas interface. In addition we find that NiOOH stores charge, as evidenced by the stable discharge plateau (voltage) measured as this oxyhydroxide phase reduces to metallic Ni.
相关文献
Signal enhancement and low oxidation potentials for miniaturized ECL biosensors via N-butyldiethanolamine
Stefanie Kirschbaum-Harriman, Michael Mayer, Axel Duerkop, Thomas Hirsch
DOI: 10.1039/C7AN00261K
A miniaturized giant magnetic resistance system for quantitative detection of methamphetamine
Guopan Yang, Kunxue Cheng, Zhengkang Chu, Chunhui Ren, Yusheng Fu, Jinhong Guo
DOI: 10.1039/D0AN02418J
DNA nanolantern-based split aptamer probes for in situ ATP imaging in living cells and lighting up mitochondria‡
Ya-Xin Wang, Dong-Xia Wang, Jia-Yi Ma, Jing Wang, Yi-Chen Du, De-Ming Kong
DOI: 10.1039/D1AN00275A
Aerosol deposition-carbon furnace atomisation for simultaneous multi-element atomic absorption spectrometry
DOI: 10.1039/JA9860100287
Selective dual detection of Hg2+ and TATP based on amphiphilic conjugated polythiophene-quantum dot hybrid materials
Salah M. Tawfik, Ali A. Abd-Elaal, Yong-Ill Lee
DOI: 10.1039/D1AN00166C
An integrated self-powered 3D printed sample concentrator for highly sensitive molecular detection of HIV in whole blood at the point of care
Karteek Kadimisetty, Aoife M. Roche, Yanjie Yi, Frederic D. Bushman, Liang Feng
DOI: 10.1039/D0AN02482A
Development of a PCR-free electrochemical point of care test for clinical detection of methicillin resistant Staphylococcus aureus (MRSA)
H. Schulze, G. Henihan, A. Hardie, I. Ciani, G. Giraud, J. G. Terry, A. J. Walton, R. Pethig, P. Ghazal, K. E. Templeton, A. R. Mount, T. T. Bachmann
DOI: 10.1039/C3AN01319G
Lighting up of carbon dots for copper(ii) detection using an aggregation-induced enhanced strategy
Long Chuan Zhang, Yu Meng Yang, Ling Liang, Yong Jian Jiang, Chun Mei Li, Yuan Fang Li, Lei Zhan, Hong Yan Zou
DOI: 10.1039/D1AN02147H
Identification of bacterial species by untargeted NMR spectroscopy of the exo-metabolome
T. L. Palama, I. Canard, G. J. P. Rautureau, C. Mirande, S. Chatellier, B. Elena-Herrmann
DOI: 10.1039/C6AN00393A
Balancing stability and specific energy in Li-rich cathodes for lithium ion batteries: a case study of a novel Li–Mn–Ni–Co oxide
Qi Li, Guangshe Li, Chaochao Fu, Dong Luo, Jianming Fan, Dongjiu Xie, Liping Li
DOI: 10.1039/C5TA00929D
您可能还喜欢
(5-氨基吡唑-3-基)乙酸(CAS号:174891-10-2)的物理化学性质是什么?
(5-氨基吡唑-3-基)乙酸是一种无色至白色固体,分子量为174.15 g/mol。它在水中具有较好的溶解性,在有机溶剂中的溶解度较低。该化合物具有较好的反应活...
3-氟-4,5-二氯苯胺(CAS号:35754-38-2)适用哪些法规指南?
3-氟-4,5-二氯苯胺受到多项法规指南的约束,包括但不限于GHS(全球化学品统一分类和标签制度)的危险分类标准、欧盟的REACH法规(注册、评估、授权和限制)...
什么是(R)-(+)-2,2',6,6'-四甲氧基-4,4'-联(二(3,5-二甲苯基基)膦基)-3,3'-二联吡啶(CAS号:442905-33-1)?
这是一种有机化合物,化学名为(R)-(+)-2,2',6,6'-四甲氧基-4,4'-联(二(3,5-二甲苯基基)膦基)-3,3'-二联吡啶,CAS号为44290...
1-氨基-2-氰基萘(CAS号:3100-67-2)应用于哪些行业?
1-氨基-2-氰基萘在医药、聚合物、传感器和半导体等行业中有应用。在医药领域,它可用作中间体合成某些药物。在聚合物行业,它可以用于制备具有特定性能的聚合物。此外...
如何处理含有1-溴-4-(异丙氧基甲基)苯(CAS号:98446-84-5)的废料?
处理含1-溴-4-(异丙氧基甲基)苯的废料时,首先应确保废液收集在防渗漏的容器中,避免泄露。然后,可以考虑采用化学降解法或物理吸附法进行处理。在特定条件下,可通...
6-Chloro-8-(trifluoromethyl)chroman-4-one(CAS号:1344889-75-3)的主要用途是什么?
6-氯-8-三氟甲基-2,3-二氢-4H-色喃-4-酮主要用于有机合成中的中间体,也可作为研究试剂使用。
7-乙氧基-2-萘酚(CAS号:57944-44-2)通常如何合成?
7-乙氧基-2-萘酚通常通过N-乙氧基化反应合成,首先将2-萘酚与乙醇钠在乙醇中反应生成7-乙氧基-2-萘酚钠盐,再通过酸化进一步得到7-乙氧基-2-萘酚。该合...
4-(1,1-二氧硫代吗啉)丁醇(CAS号:59801-41-1)适用哪些法规指南?
该化合物需遵循一系列的法规指南,包括但不限于GHS全球统一分类和标签制度,其分类可能包括易燃液体和可能危害水生环境。在欧洲,还需遵循REACH法规,确保物质和混...
4-甲氧基苄基叠氮甲酸酯(CAS号:25474-85-5)的物理化学性质是什么?
4-甲氧基苄基叠氮甲酸酯是一种无色液体,具有一定的挥发性。其分子量为198.16,熔点为-69°C,沸点为105°C。该化合物在水中溶解度较低,在有机溶剂如乙醇...
如何处理含有4-氯-2-氟嘧啶(CAS号:51422-00-5)的废料?
含有4-氯-2-氟嘧啶的废料应按照危险废物处理。首先,应收集并分类这些废料,避免与其他废物混合。然后,可以采用焚烧处理或者交由专业机构进行处置。在处理过程中,需...
来源期刊
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.













![1-{3-[4-Amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-piperidinyl}-2,3-dihydroxy-1-propanone structure 1-{3-[4-Amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-piperidinyl}-2,3-dihydroxy-1-propanone structure](https://cnstatic.chemtradehub.com/structs/122/1226872-27-0-e037.webp)
