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A gas-generating apparatus includes a cartridge including a reservoir having a first reactant and a reaction chamber, and a receiver that can include a flow control device. The receiver is adapted to receive the cartridge and to transport the first reactant to the reaction chamber after connection w

A gas-generating apparatus includes a cartridge including a reservoir having a first reactant and a reaction chamber, and a receiver that can include a flow control device. The receiver is adapted to receive the cartridge and to transport the first reactant to the reaction chamber after connection with the cartridge. The flow control device is adapted to stop the transport of reactant when the pressure in the reaction chamber reaches a predetermined pressure.

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1. A gas-generating apparatus comprising a reaction chamber, where a hydrogen gas is produced from a reaction between a metal hydride and a liquid reactant, and a hydrogen separating member disposed within the reaction chamber and connected to a coupler of the reaction chamber, wherein the hydrogen

1. A gas-generating apparatus comprising a reaction chamber, where a hydrogen gas is produced from a reaction between a metal hydride and a liquid reactant, and a hydrogen separating member disposed within the reaction chamber and connected to a coupler of the reaction chamber, wherein the hydrogen separating member comprises a gas permeable, liquid impermeable membrane covering a porous member, wherein the porous member is connected to the coupler and wherein the hydrogen gas permeates through the hydrogen separating member through the porous member and to the coupler. 2. The gas-generating apparatus of claim 1, wherein the gas permeable, liquid impermeable membrane comprises at least a hydrophobic material having an alkane group. 3. The gas-generating apparatus of claim 2, wherein the hydrophobic material having the alkane group comprises at least one of polyethylene, polytetrafluoroethylene, polypropylene, polyglactin, lyophilized dura mater, polyvinylidene fluoride (PVDF) having a pore size from about 0.1 μm to about 0.45 μm, or a combination thereof. 4. The gas-generating apparatus of claim 2, wherein the hydrophobic material having the alkane group is selected from a group consisting of polyethylene, polytetrafluoroethylene, polypropylene, polyglactin, lyophilized dura mater, polyvinylidene fluoride (PVDF) having a pore size from about 0.1 μm to about 0.45 μm, and a combination thereof. 5. The gas-generating apparatus of claim 1, wherein the reaction between the metal hydride and the liquid reactant occurs substantially outside of the hydrogen separating member. 6. The gas-generating apparatus of claim 1, wherein the porous member has a pore size of less than about 10 μm. 7. The gas-generating apparatus of claim 6, wherein the porous member comprises a sintered or ceramic material. 8. The gas-generating apparatus of claim 6, wherein the reaction between the metal hydride and the liquid reactant occurs substantially outside of the hydrogen separating member. 9. The gas-generating apparatus of claim 6, wherein the porous member comprises a rod. 10. The gas-generating apparatus of claim 1, wherein the the coupler is connected within the reaction chamber to the hydrogen separating member. 11. A method for separating hydrogen comprising the steps of (i) reacting a metal hydride with a liquid reactant to produce hydrogen,(ii) providing a hydrogen separating member having a gas permeable, liquid impermeable membrane covering a porous member, wherein the porous member is connected to a coupler of a reaction chamber, wherein said reaction occurs substantially outside of the hydrogen separating member, and(iii) transporting the hydrogen through the hydrogen separating member through the porous member and to the coupler. 12. The method of claim 11, wherein in step (i) the reaction occurs in the reaction chamber. 13. The method of claim 12, wherein the reaction chamber is a part of a cartridge. 14. The method of claim 11, further comprising the step of: (iv) exiting the hydrogen gas from the reaction chamber through the coupler connected within the reaction chamber to the hydrogen separating member. 15. A gas-generating apparatus comprising a reaction chamber, where a hydrogen gas is produced from a reaction between a metal hydride and a liquid reactant, and a hydrogen separating member disposed within the reaction chamber and fluidically connected to an outlet of the gas-generating apparatus, wherein the hydrogen separating member comprises a gas permeable, liquid impermeable membrane covering a porous member, and wherein the hydrogen gas permeates through the hydrogen separating member to the outlet, wherein the hydrogen separating member comprises a nanograss material. 16. A gas-generating apparatus comprising a reaction chamber, where a hydrogen gas is produced from a reaction between a metal hydride and a liquid reactant, and a hydrogen separating member disposed within the reaction chamber and fluidically connected to an outlet of the gas-generating apparatus, wherein the hydrogen separating member comprises a porous member having a pore size of less than about 10 μm, and wherein the hydrogen gas permeates through the hydrogen separating member to the outlet, and wherein the hydrogen material comprises a nanograss material.