An efficient on-board metal-free nanocatalyst for controlled room temperature hydrogen production

Abstract

Positively charged functionalized carbon nanodots (CNDs) with a variety of different effective surface areas (ESAs) are synthesized via a cheap and time effective microwave method and applied for controlled hydrogen production via hydrolysis of sodium borohydride.

Enhanced H2 production from dehydrogenation of sodium borohydride over the ternary Co0.97Pt0.03/CeOx nanocomposite grown on CGO catalytic support

“…The intense peak at about 10.74 represents the existence of graphene oxide, which originates from the reection of the (001) plane, while a broad peak at 24.8 belongs to the diffraction pattern of amorphous carbon. 39,47 Using Bragg's law, the interlayer spacing of GO and CGO for the (001) plane was calculated as 10.19 A and 9.47 A, respectively. Compared to GO, the observed slight shi in the peak position of CGO and the decreased d (001) value indicates the co-intercalation of amorphous carbon, nitrate, and sulfate in the graphitic layer during extensive chemical oxidation.…”

“…[35][36][37] It is observed that the tuning of metallic NPs with a catalyst support can further accelerate the catalytic performance by providing functionalized anchoring sites for the nanoparticles by maximizing the specic surface area and preventing them from agglomeration. 38 Amongst the available catalyst support materials, the carbon family member's, namely, carbon nanodot (0D), 39,40 carbon nanotube (1D), 18 graphene oxide, 41 and graphene (2D), 42 have received immense attention owing to their chemical inertness, hydrophobic nature, thermal stability, low corrosivity, and the availability of an easily functional high surface area. On the other hand, amorphous carbon (carbon black), which is oen considered as an impurity, is comparatively less studied as a catalyst or catalytic support material.…”

Production of High‐Purity Hydrogen and Layered Doubled Hydroxide by Hydrolysis of Mg‐Al Alloys

“…Hydrogen energy was proposed to address the pitfalls of fossil energy in the 1970s 2 but the safety concern of transportation and storage of hydrogen has been one of the key issues for its use 3. Therefore, on‐board generation of hydrogen is required in many applications, e.g., closed vessels, aircraft, spaceship, and submarine 4–6.…”

Effective Surface Area Tuning of Noble Metal-Free CuBO2/rGO Nanohybrid for Efficient Hydrogen Production with “On–Off” Switching

“…Commonly, various hydrides are used as the hydrogen storage material. To be precise, sustainable hydrogen production from hydrolysis of metal hydride has attracted considerable attention. − In the case of hydrolysis of metal hydrides, sodium borohydride (NaBH 4 ) is among the most popular for its high hydrogen content (∼10.8 wt %), easy obtainability, and ecofriendly features. , Furthermore, hydrolysis of one molecule of NaBH 4 generates four hydrogen molecules along with water-soluble sodium metaborate (NaBO 2 ) . The chemical reaction of this process is as follows. …”