What is the enthalpy of ammonium carbamate?

The compound ammonium carbamate, [NH 4] [H 2 NCOO], is a solid formed from the reaction of ammonia and carbon dioxide which endothermically decomposes back to CO 2 and NH 3 in the temperature range 20-100°C with an enthalpy of decomposition of ∼2,000 kJ/kg.

Can ammonium carbamate be used as a heat sink?

A novel, dynamic thermal management system using ammonium carbamate as a heat sink is demonstrated. The proposed thermal management scheme was capable of >95% reaction efficiency/conversion. Thermal energy storage and heat pump enabled control of reaction to match dynamic heat loads.

Can ammonium carbamate be used for low-grade heat utilization?

The thermochemical reaction of ammonium carbamate (AC) holds significant potential for low-grade heat utilization. However, the insufficient understanding of reaction kinetics limits its further applications.

Does ammonium carbamate decompose?

Ammonium carbamate (AC), an intermediate product in the industrial production of the essential fertilizer urea, can reversibly decompose into ammonia and carbon dioxide, exhibiting significant thermal effects, as shown in Eq. (1).

What is ammonium carbamate (AC)?

Ammonium carbamate (AC, 1111-78-0) used in the experiments was an analytical pure reagent (purity: 95%) provided by Shanghai Macklin Biochemical Technology Co., Ltd. and was used without further purification. The AC was bought in block crystal and stored at 2–8 °C.

Are aqueous energy storage devices suitable for non-metallic ammonium ions?

In recent times, there has been growing interest among researchers in aqueous energy storage devices that utilize non-metallic ammonium ions (NH4+) as charge carriers. However, the selection of suitable materials for ammonium storage presents significant challenges. The understanding of the energy storage me