# High-efficiency Nitrogen Oxidation (HNO3)

Source: https://welltoldgrants.com/grants/hr001126s0005-high-efficiency-nitrogen-oxidation-hno3/  
Official notice: https://www.grants.gov/search-results-detail/360924

> DARPA - Defense Sciences Office offered grants to the applicants described in the notice. Applications closed on February 5, 2026.

| Field | Value |
|---|---|
| Opportunity number | HR001126S0005 |
| Agency | DARPA - Defense Sciences Office |
| Status | Forecast |
| Deadline | February 5, 2026 |
| Award ceiling | not stated |
| Award floor | not stated |
| Expected awards | not stated |
| Total funding | not stated |
| Cost sharing | not required |
| Assistance Listings | 12.910 |

## Who can apply

- Others (see text field entitled "Additional Information on Eligibility" for clarification)

All responsible sources capable of satisfying the Government's needs may submit a proposal that shall be considered by DARPA. See the Eligibility Information section of the BAA for more information.

## What the grant funds

The Defense Advanced Research Projects Agency (DARPA) is soliciting innovative proposals in the foundational technologies to enable high-rate, energy efficient, decentralized nitric acid manufacturing to protect critical supply chains in the defense industrial base and redefine energetics manufacturing in contested logistics environments. Proposed research should investigate innovative approaches that enable revolutionary advances in science, devices, or systems. Specifically excluded is research that primarily results in evolutionary improvements to the existing state of practice.

## Questions people ask

### Is HR001126S0005 still open?

No. It closed on February 5, 2026. A newer notice is open: DARPARA2701, closes January 13, 2027 (67 days left).

### Who can apply for High-efficiency Nitrogen Oxidation (HNO3)?

DARPA - Defense Sciences Office accepted applications from the applicants described in the notice. The notice adds further conditions, so read its eligibility section.

### What is the deadline for High-efficiency Nitrogen Oxidation (HNO3)?

Closed February 5, 2026. Applications are no longer accepted; the program's newer notices are on this page when there are any.

### Who has won Research and Technology Development grants before?

The largest recipients over five fiscal years were University of Southern California, Clemson University, Massachusetts Institute of Technology. The program made 739 awards worth $1.5 billion in that time.