On the corrosion characterization of titanium nitride in sulfuric acid solution

Chyou, San-Der; Shih, Han C.; Chen, T.T.

doi:10.1016/0010-938x(93)90165-d

Cited by 16 publications

(6 citation statements)

References 10 publications

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“…Ti 2p XPS spectra further showed that the signal of Ti-N and Ti-N–O decreased considerably after testing in H 2 SO 4 or KOH solution, leaving only Ti–O signals, while the Ti-N and Ti-N–O signals were not affected for TiN paper tested in 0.5 M Na 2 SO 4 . These results suggested that TiN papers were oxidized in both H 2 SO 4 and KOH solutions, which are consistent with the previous reports [ 25 , 63 , 64 ]. Titanium ions in TiN can be oxidized to soluble titanate ions (HTiO 3 − ) and/or TiO 2 ·H 2 O in alkaline solution [ 63 ], while they can also be oxidized steadily to the trivalent state (Ti(OH) 2+ ) and tetravalent state (Ti(OH) 2 2+ ) at positive voltages in acidic solutions [ 64 ].…”

Section: Resultssupporting

confidence: 93%

“…Transition metal nitride electrodes have been suffering from the instability problem during cycling [22,24]. TiN paper SSCs were tested for long-term stability in three different electrolytes, 0. at positive voltages in acidic solutions [64]. These results demonstrate the importance of selecting the sulfate-based neutral electrolyte for TiN electrodes and possibly other nitride electrodes.…”

Section: Resultsmentioning

confidence: 74%

“…ammonia and generate TiN ( TiO + NH 3 → TiN + H 2 O )[31]. The TiO 2 can also react with nitrogen and generate TiO…”

mentioning

confidence: 99%

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TiN Paper for Ultrafast-Charging Supercapacitors

Yao

Zhang

et al. 2019

Nano-Micro Lett.

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Ultrafast-charging energy storage devices are attractive for powering personal electronics and electric vehicles. Most ultrafast-charging devices are made of carbonaceous materials such as chemically converted graphene and carbon nanotubes. Yet, their relatively low electrical conductivity may restrict their performance at ultrahigh charging rate. Here, we report the fabrication of a porous titanium nitride (TiN) paper as an alternative electrode material for ultrafast-charging devices. The TiN paper shows an excellent conductivity of 3.67 × 104 S m−1, which is considerably higher than most carbon-based electrodes. The paper-like structure also contains a combination of large pores between interconnected nanobelts and mesopores within the nanobelts. This unique electrode enables fast charging by simultaneously providing efficient ion diffusion and electron transport. The supercapacitors (SCs) made of TiN paper enable charging/discharging at an ultrahigh scan rate of 100 V s−1 in a wide voltage window of 1.5 V in Na2SO4 neutral electrolyte. It has an outstanding response time with a characteristic time constant of 4 ms. Significantly, the TiN paper-based SCs also show zero capacitance loss after 200,000 cycles, which is much better than the stability performance reported for other metal nitride SCs. Furthermore, the device shows great promise in scalability. The filtration method enables good control of the thickness and mass loading of TiN electrodes and devices.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 74%

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TiN Paper for Ultrafast-Charging Supercapacitors

Yao

Zhang

et al. 2019

Nano-Micro Lett.

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“…Ti 2p spectra showed that Ti is present as TiN, TiO x N y , and TiO 2 . The peak assignments of Ti 2p 3/2 and Ti 2p 1/2 shown in Table S1 were based on the literature [39][40][41]. This result suggests that the surface of TiN nanoparticles underwent oxidation during RSDT deposition, which is also supported by the results of XRD analysis (Table 2) and Raman spectroscopy (Fig.…”

Section: Electronic Structure Of Pt-nbo X /Tin Catalystsupporting

confidence: 72%

Nano-sized Pt–NbOx supported on TiN as cost-effective electrocatalyst for oxygen reduction reaction

Daudt

Poozhikunnath

et al. 2020

Mater Renew Sustain Energy

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Proton exchange membrane fuel cells (PEMFC) play a key role for sustainable energy; however, catalyst degradation remains one of the main challenges for competing with traditional energy technologies. The Pt/C commercially available electrocatalysts are susceptible to Pt dissolution and carbon support corrosion. In this context, we design a Pt–NbOx catalyst supported on TiN nanoparticles as an alternative electrocatalyst for the oxygen reduction reaction (ORR). The use of Pt–NbOx reduces materials’ costs by lowering the required platinum loading and improving catalyst performance. The TiN support is selected to improve support stability. The electrocatalyst is successfully synthesized by a one-step flame spray process called reactive spray deposition technology. Electrocatalyst with two different very low Pt loadings (0.032 mg cm−2 and 0.077 mg cm−2) are investigated and their performance as cathode is evaluated by the rotating disk electrode method. The new electrocatalyst based on Pt–NbOx supported on TiN has ORR performance that is comparable to the state-of-the-art Pt/C electrocatalyst. A half-wave potential of 910 mV was observed in the polarization curves, as well as a mass activity of 0.120 A∙mgPt−1 and a specific activity of 283 μA∙cmPt−2 at 0.9 V. These results demonstrate that Pt–NbOx on TiN electrocatalyst has the potential for replacing Pt/C cathode in PEMFC.

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“…Corrosion studies on PVD ceramic coatings typically show favorable results for all organic solvents, most acids, bases, and in hydrothermal conditions [437][438][439][440][441][442][443][444]. Because the coatings possess amorphous or columnar grain structures and are deposited epitaxially from high purity targets, they are devoid of impurities, which favors improved corrosive behavior.…”

Section: Chemical Corrosionmentioning

confidence: 97%