Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated March 7, 2005, relating to the consolidated financial statements of Altair Nanotechnologies Inc. and subsidiaries appearing in the Annual Report on Form 10-K of Altair Nanotechnologies Inc. and subsidiaries for the year ended December 31, 2004.

/s/ DELOITTE & TOUCHE LLP

Salt Lake City, Utah

June 14, 2005