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At least 55 records · Page 3
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on La(CoP)2 by Materials Project

LaCo2P2 is alpha bismuth trifluoride-derived structured and crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. La3+ is bonded in a body-centered cubic geometry to eight equivalent P3- atoms. There are a spread of La–P bond distances ranging from 3.10–3.14 Å. Co+1.50+ is bonded to four equivalent P3- atoms to form a mixture of edge and corner-sharing CoP4 tetrahedra. There are two shorter (2.21 Å) and two longer (2.22 Å) Co–P bond lengths. P3- is bonded in a 8-coordinate geometry to four equivalent La3+ and four equivalent Co+1.50+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pr(CoP)2 by Materials Project

PrCo2P2 is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Pr3+ is bonded in a body-centered cubic geometry to eight equivalent P3- atoms. All Pr–P bond lengths are 3.10 Å. Co+1.50+ is bonded to four equivalent P3- atoms to form a mixture of edge and corner-sharing CoP4 tetrahedra. All Co–P bond lengths are 2.23 Å. P3- is bonded in a 4-coordinate geometry to four equivalent Pr3+ and four equivalent Co+1.50+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nd(CoP)2 by Materials Project

NdCo2P2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Nd3+ is bonded in a distorted body-centered cubic geometry to eight equivalent P3- atoms. All Nd–P bond lengths are 3.05 Å. Co+1.50+ is bonded to four equivalent P3- atoms to form a mixture of corner and edge-sharing CoP4 tetrahedra. All Co–P bond lengths are 2.25 Å. P3- is bonded in a 9-coordinate geometry to four equivalent Nd3+ and four equivalent Co+1.50+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr(CoP)2 by Materials Project

SrCo2P2 is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sr2+ is bonded in a body-centered cubic geometry to eight equivalent P3- atoms. All Sr–P bond lengths are 3.20 Å. Co2+ is bonded to four equivalent P3- atoms to form a mixture of edge and corner-sharing CoP4 tetrahedra. All Co–P bond lengths are 2.22 Å. P3- is bonded in a 8-coordinate geometry to four equivalent Sr2+ and four equivalent Co2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sm(CoP)2 by Materials Project

SmCo2P2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sm3+ is bonded in a distorted body-centered cubic geometry to eight equivalent P3- atoms. All Sm–P bond lengths are 3.01 Å. Co+1.50+ is bonded to four equivalent P3- atoms to form a mixture of corner and edge-sharing CoP4 tetrahedra. All Co–P bond lengths are 2.25 Å. P3- is bonded in a 9-coordinate geometry to four equivalent Sm3+, four equivalent Co+1.50+, and one P3- atom. The P–P bond length is 2.51 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce(CoP)2 by Materials Project

CeCo2P2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ce3+ is bonded in a distorted body-centered cubic geometry to eight equivalent P3- atoms. All Ce–P bond lengths are 3.01 Å. Co+1.50+ is bonded to four equivalent P3- atoms to form a mixture of edge and corner-sharing CoP4 tetrahedra. All Co–P bond lengths are 2.26 Å. P3- is bonded in a 9-coordinate geometry to four equivalent Ce3+, four equivalent Co+1.50+, and one P3- atom. The P–P bond length is 2.45 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on U(CoP)2 by Materials Project

UCo2P2 crystallizes in the tetragonal P4mm space group. The structure is three-dimensional. there are two inequivalent U3+ sites. In the first U3+ site, U3+ is bonded in a 8-coordinate geometry to eight P3- atoms. There are four shorter (2.95 Å) and four longer (2.97 Å) U–P bond lengths. In the second U3+ site, U3+ is bonded in a 8-coordinate geometry to eight P3- atoms. There are four shorter (2.94 Å) and four longer (2.97 Å) U–P bond lengths. There are three inequivalent Co+1.50+ sites. In the first Co+1.50+ site, Co+1.50+ is bonded in a 5-coordinate geometry to five P3- atoms. There are four shorter (2.21 Å) and one longer (2.24 Å) Co–P bond lengths. In the second Co+1.50+ site, Co+1.50+ is bonded in a 5-coordinate geometry to five P3- atoms. There are four shorter (2.21 Å) and one longer (2.22 Å) Co–P bond lengths. In the third Co+1.50+ site, Co+1.50+ is bonded to four P3- atoms to form a mixture of edge and corner-sharing CoP4 tetrahedra. There are two shorter (2.29 Å) and two longer (2.31 Å) Co–P bond lengths. There are three inequivalent P3- sites. In the first P3- site, P3- is bonded in a 9-coordinate geometry to four equivalent U3+ and five Co+1.50+ atoms. In the second P3- site, P3- is bonded in a 4-coordinate geometry to four U3+ and four Co+1.50+ atoms. In the third P3- site, P3- is bonded in a 9-coordinate geometry to four equivalent U3+ and five Co+1.50+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CoP(H4O3)3 by Materials Project

Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CoPS by Materials Project

CoSP is Spinel-like structured and crystallizes in the cubic P2_13 space group. The structure is three-dimensional. Co3+ is bonded to three equivalent P1- and three equivalent S2- atoms to form CoP3S3 octahedra that share corners with twelve equivalent CoP3S3 octahedra, corners with three equivalent PCo3S tetrahedra, and corners with three equivalent SCo3P tetrahedra. The corner-sharing octahedral tilt angles are 64°. All Co–P bond lengths are 2.25 Å. All Co–S bond lengths are 2.27 Å. P1- is bonded to three equivalent Co3+ and one S2- atom to form PCo3S tetrahedra that share corners with three equivalent CoP3S3 octahedra, corners with six equivalent PCo3S tetrahedra, and corners with nine equivalent SCo3P tetrahedra. The corner-sharing octahedral tilt angles are 78°. The P–S bond length is 2.17 Å. S2- is bonded to three equivalent Co3+ and one P1- atom to form SCo3P tetrahedra that share corners with three equivalent CoP3S3 octahedra, corners with six equivalent SCo3P tetrahedra, and corners with nine equivalent PCo3S tetrahedra. The corner-sharing octahedral tilt angles are 78°.

36 MATERIALS SCIENCE↗
DOE OSTI2024

CARILEC Resilient Energy Community CoP for Cybersecurity Workshop Series: Cybersecurity Assessment Tools [Slides]

For the last several years and in collaboration with CARILEC, USAID and NREL have been working to support cyber resilience at power sector utilities in Latin America and the Caribbean. Direct technical assistance with regional utilities has been a key component of USAID-NREL Partnership activities, and technical assistance has typically included a foundational cybersecurity assessment using NREL's Distributed Energy Resource Cybersecurity Framework (DER-CF) tool. The DER-CF allows organizations to benchmark and evaluate their cybersecurity posture across the areas of Governance, Technical Management, and Physical Security. To complement the activities of the newly created CAREC IT/OT and Cybersecurity Team, this webinar on cybersecurity assessment tools includes an overview of the DER-CF tool and a discussion with regional stakeholders and NREL experts on the DER-CF assessment process and other resources for cybersecurity assessments.

24 POWER TRANSMISSION AND DISTRIBUTION↗
DOE OSTI2026

ResStock Measure Documentation: Residential Single-Stage Geothermal Heat Pump (3.8 COP, 18.6 EER)

The goal of this work is to develop energy efficiency, demand flexibility, and other retrofit end-use load shapes (electricity, gas, propane, or fuel oil) that cover a majority of the high-impact, market-ready (or nearly market-ready) measures. "Measures" refers to retrofits that can be applied to buildings during modeling. An "end-use savings shape" is the difference in energy consumption between a baseline building and a building with an energy efficiency, demand flexibility, or other retrofit measure applied. It results in a time-series profile that is broken down by end use and fuel (electricity or on-site gas, propane, or fuel oil use) at each time step. ResStock is a highly granular, physics-based, bottom-up model that uses multiple data sources, statistical sampling methods, and advanced building energy simulations to estimate the annual subhourly energy consumption of the residential building stock across the United States. The baseline model intends to represent the U.S. residential building stock as it existed in 2018. Technical documentation for the inputs and assumptions in the baseline building stock model is available in Reyna et al. (2025). Calibration and validation of the baseline model results are available in the final technical report of the End-Use Load Profiles project (Wilson et al. 2022). This documentation focuses on a single end-use savings shape measure: Residential Single-Stage Geothermal Heat Pump (GHP).?Single-stage GHPs are able to reduce energy consumption by 31% for the entire stock. Additional results provided below detail how savings changes for sections of the housing stock with different base heating fuel and in different climate zones, as well as the savings potential by state for both heating and cooling. Utility bills and electric panel impacts are also shown and discussed.

15 GEOTHERMAL ENERGY↗
DOE OSTI2026

ResStock Measure Documentation: Residential Variable-Speed Geothermal Heat Pump (4.4 COP, 30.9 EER)

The goal of this work is to develop energy efficiency, demand flexibility, and other retrofit end-use load shapes (electricity, gas, propane, or fuel oil) that cover a majority of the high-impact, market-ready (or nearly market-ready) measures. "Measures" refers to retrofits that can be applied to buildings during modeling. An "end-use savings shape" is the difference in energy consumption between a baseline building and a building with an energy efficiency, demand flexibility, or other retrofit measure applied. It results in a time-series profile that is broken down by end use and fuel (electricity or on-site gas, propane, or fuel oil use) at each time step. ResStock (TM) is a highly granular, physics-based, bottom-up model that uses multiple data sources, statistical sampling methods, and advanced building energy simulations to estimate the annual subhourly energy consumption of the residential building stock across the United States. The baseline model intends to represent the U.S. residential building stock as it existed in 2018. Technical documentation for the inputs and assumptions in the baseline building stock model is available in Reyna et al. (2025). Calibration and validation of the baseline model results are available in the final technical report of the End-Use Load Profiles project (Wilson et al. 2022). This documentation focuses on a single end-use savings shape measure: Residential Variable-Speed Geothermal Heat Pump (GHP). This document provides the relevant new modeling information for variable-speed systems not previously covered in either the single-stage or two-stage documents. Variable-speed GHPs represent the most efficient option available for this technology: They provide the most savings, with up to 46% for the applicable portion of the housing stock, compared to 31% for less efficient single-stage GHPs. Additional results shown here detail how the savings change for sections of the housing stock with different base heating fuels and in different climate zones, and they show the savings potential by state for both heating and cooling. Utility bills and electric panel impacts are also shown and discussed.

15 GEOTHERMAL ENERGY↗
NASA NTRS2002

Synthesis and thermoelectric properties of CoP(sub 3)

In an effort to expand the range of operation for highly efficient, segmented thermoelectric unicouples currently being developed at JPL, skutterudite phosphides are being investigated as potential high temperature segments to supplement antimonide segments that limit the use of these unicouples at a hot-side temperature of about 873-973 K.

thermoelectric space power↗
NASA NTRSDate not supplied

COP Flight Connector and Wiring

Explore the source record for details and available documents.

Connector and Wiring Community of Practice Topics↗