Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Pt(NO2)2”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

10 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Pt(NO2)2 by Materials Project

Pt(NO)2O2 is Cyanogen Chloride-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four hydrogen peroxide molecules and four Pt(NO)2 clusters. In each Pt(NO)2 cluster, Pt6+ is bonded in a linear geometry to two equivalent N1+ atoms. Both Pt–N bond lengths are 1.82 Å. N1+ is bonded in a distorted linear geometry to one Pt6+ and one O2- atom. The N–O bond length is 1.18 Å. O2- is bonded in a single-bond geometry to one N1+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pt(NO3)2 by Materials Project

Pt(NO3)2 crystallizes in the triclinic P-1 space group. The structure is one-dimensional and consists of one oxygen molecule and one Pt(NO2)2 ribbon oriented in the (1, 0, 0) direction. In the Pt(NO2)2 ribbon, Pt2+ is bonded to six O2- atoms to form edge-sharing PtO6 octahedra. There are four shorter (2.00 Å) and two longer (2.06 Å) Pt–O bond lengths. N5+ is bonded in a single-bond geometry to one O2- atom. The N–O bond length is 1.29 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to one Pt2+ and one N5+ atom. In the second O2- site, O2- is bonded in a water-like geometry to two equivalent Pt2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K2Ag4Pt3(NO2)12 by Materials Project

(KAg2(NO2)6)2(Pt)3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional and consists of six platinum molecules and one KAg2(NO2)6 framework. In the KAg2(NO2)6 framework, K1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of K–O bond distances ranging from 2.82–3.26 Å. There are two inequivalent Ag2+ sites. In the first Ag2+ site, Ag2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Ag–O bond distances ranging from 2.41–2.59 Å. In the second Ag2+ site, Ag2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ag–O bond distances ranging from 2.44–2.94 Å. There are six inequivalent N+1.67+ sites. In the first N+1.67+ site, N+1.67+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.24 Å) and one longer (1.25 Å) N–O bond length. In the second N+1.67+ site, N+1.67+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.24 Å) and one longer (1.26 Å) N–O bond length. In the third N+1.67+ site, N+1.67+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. In the fourth N+1.67+ site, N+1.67+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. In the fifth N+1.67+ site, N+1.67+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.24 Å) and one longer (1.26 Å) N–O bond length. In the sixth N+1.67+ site, N+1.67+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one K1+, one Ag2+, and one N+1.67+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one K1+, one Ag2+, and one N+1.67+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Ag2+ and one N+1.67+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one K1+, one Ag2+, and one N+1.67+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ag2+ and one N+1.67+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one N+1.67+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to one K1+, one Ag2+, and one N+1.67+ atom. In the eighth O2- site, O2- is bonded in a 1-coordinate geometry to one K1+, one Ag2+, and one N+1.67+ atom. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+, one Ag2+, and one N+1.67+ atom. In the tenth O2- site, O2- is bonded in a 1-coordinate geometry to one K1+, one Ag2+, and one N+1.67+ atom. In the eleventh O2- site, O2- is bonded in a 1-coordinate geometry to one K1+, one Ag2+, and one N+1.67+ atom. In the twelfth O2- site, O2- is bonded in a single-bond geometry to one N+1.67+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PtS2(NO2)4 by Materials Project

Pt(SO4)2(N2)2 crystallizes in the monoclinic C2/m space group. The structure is zero-dimensional and consists of eight ammonia molecules and two Pt(SO4)2 clusters. In each Pt(SO4)2 cluster, Pt2+ is bonded in a linear geometry to two equivalent O2- atoms. Both Pt–O bond lengths are 2.02 Å. S2- is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of S–O bond distances ranging from 1.46–1.59 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one S2- atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Pt2+ and one S2- atom. In the third O2- site, O2- is bonded in a single-bond geometry to one S2- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PtC2(NO2)2 by Materials Project

PtC2(NO2)2 crystallizes in the monoclinic P2_1/m space group. The structure is zero-dimensional and consists of two 41349-15-9 molecules. Pt6+ is bonded in a rectangular see-saw-like geometry to two equivalent N3- and two equivalent O2- atoms. Both Pt–N bond lengths are 1.79 Å. Both Pt–O bond lengths are 2.10 Å. C4+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.23 Å) and one longer (1.31 Å) C–O bond length. N3- is bonded in a distorted single-bond geometry to one Pt6+ atom. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Pt6+ and one C4+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2021

Continuous MOF Membrane-Based Sensors via Functionalization of Interdigitated Electrodes

Three M-MOF-74 (M = Co, Mg, Ni) metal-organic framework (MOF) thin film membranes have been synthesized through a sensor functionalization method for the direct electrical detection of NO 2 . The two-step surface functionalization procedure on the glass/Pt interdigitated electrodes resulted in a terminal carboxylate group, with both steps confirmed through infrared spectroscopic analysis. This surface functionalization allowed the MOF materials to grow largely in a uniform manner over the surface of the electrode forming a thin film membrane over the Pt sensing electrodes. The growth of each membrane was confirmed through scanning electron microscopy (SEM) and X-ray diffraction analysis. The Ni and Mg MOFs grew as a continuous but non-defect free membrane with overlapping polycrystallites across the glass surface, whereas the Co-MOF-74 grew discontinuously. To demonstrate the use of these MOF membranes as an NO 2 gas sensor, Ni-MOF-74 was chosen as it was consistently fabricated as the best thin and homogenous membrane, as confirmed by SEM. The membrane was exposed to 5 ppm NO 2 and the impedance magnitude was observed to decrease 123× in 4 h, with a larger change in impedance and a faster response than the bulk material. Importantly, the use of these membranes as a sensor for NO 2 does not require them to be defect-free, but solely continuous and overlapping growth.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
DOE OSTI2020

Materials Data on K2Pt(NO2)4 by Materials Project

K2Pt(NO2)4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional and consists of four platinum molecules and one K(NO2)2 framework. In the K(NO2)2 framework, there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.81–3.28 Å. In the second K1+ site, K1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of K–O bond distances ranging from 2.74–3.28 Å. There are four inequivalent N3+ sites. In the first N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. In the second N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. In the third N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. In the fourth N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three K1+ and one N3+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one N3+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to two K1+ and one N3+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent K1+ and one N3+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one N3+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent K1+ and one N3+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one N3+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one N3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K4PdPt(NO2)8 by Materials Project

(K(NO2)2)4PtPd crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional and consists of two palladium molecules, two platinum molecules, and one K(NO2)2 framework. In the K(NO2)2 framework, there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.81–3.14 Å. In the second K1+ site, K1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of K–O bond distances ranging from 2.74–3.23 Å. There are four inequivalent N3+ sites. In the first N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. In the second N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. In the third N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. In the fourth N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one N3+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to two K1+ and one N3+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent K1+ and one N3+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one N3+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one N3+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to three K1+ and one N3+ atom. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent K1+ and one N3+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one N3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K2Pt(NO2)4 by Materials Project

K2Pt(NO2)4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional and consists of four platinum black molecules and one K(NO2)2 framework. In the K(NO2)2 framework, there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded to eight O2- atoms to form distorted corner-sharing KO8 hexagonal bipyramids. There are a spread of K–O bond distances ranging from 2.77–3.30 Å. In the second K1+ site, K1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of K–O bond distances ranging from 2.71–3.03 Å. There are four inequivalent N3+ sites. In the first N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. In the second N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. In the third N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. In the fourth N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one N3+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+ and one N3+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one N3+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two K1+ and one N3+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one K1+ and one N3+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one N3+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one N3+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one N3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K2Pt(NO2)4 by Materials Project

K2Pt(NO2)4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional and consists of four platinum molecules and one K(NO2)2 framework. In the K(NO2)2 framework, there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of K–O bond distances ranging from 2.65–3.35 Å. In the second K1+ site, K1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of K–O bond distances ranging from 2.75–3.27 Å. There are four inequivalent N3+ sites. In the first N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. In the second N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. In the third N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. In the fourth N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to two K1+ and one N3+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+ and one N3+ atom. In the third O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent K1+ and one N3+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two K1+ and one N3+ atom. In the fifth O2- site, O2- is bonded in a distorted water-like geometry to one K1+ and one N3+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one N3+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one N3+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one N3+ atom.

36 MATERIALS SCIENCE↗